WO2007048277A1 - A multi-edge synchronous switching power supply and its controller - Google Patents

A multi-edge synchronous switching power supply and its controller Download PDF

Info

Publication number
WO2007048277A1
WO2007048277A1 PCT/CN2005/001789 CN2005001789W WO2007048277A1 WO 2007048277 A1 WO2007048277 A1 WO 2007048277A1 CN 2005001789 W CN2005001789 W CN 2005001789W WO 2007048277 A1 WO2007048277 A1 WO 2007048277A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
switch
edge
power
unit
Prior art date
Application number
PCT/CN2005/001789
Other languages
French (fr)
Chinese (zh)
Inventor
Weilun Chen
Jun Chen
Original Assignee
Weilun Chen
Jun Chen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weilun Chen, Jun Chen filed Critical Weilun Chen
Priority to CN2005800055906A priority Critical patent/CN1922781B/en
Priority to PCT/CN2005/001789 priority patent/WO2007048277A1/en
Publication of WO2007048277A1 publication Critical patent/WO2007048277A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/2173—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement

Definitions

  • the invention relates to a switching power supply and a controller thereof, in particular to a power supply circuit for a cylinder switching power supply, a switching power supply for improving power conversion efficiency, and more particularly to a multilateral edge synchronous switching power supply and a controller thereof.
  • FIG. 1 is a circuit diagram of a conventional switching power supply including an AC rectifying unit, a power factor correcting unit, a power switch converting unit, and a DC rectifying unit.
  • the existing complete switching power supply is at least four levels:
  • the first stage is an AC rectification input unit: converting AC to unipolar DC;
  • the second stage is the power factor correction unit: During the working period of the power factor correction controller, the monopolar direct current is converted into a stable high voltage direct current, and the controller controls the circuit switch only to adjust the width of the output drive pulse;
  • the third stage is the power switch conversion unit: during the working period of the switching power supply pulse width controller, the high voltage DC isolation is transmitted to the DC output stage, and the controller controls the circuit switch only to adjust the width of the output driver ⁇ ;
  • the fourth stage is the DC output unit: the high-frequency AC rectification output after the transformation is completed, thereby completing the complete power conversion cycle of the switching power supply.
  • the technology of the existing controller is only to generate a modulated pulse with a controllable pulse width in order to complete a specified single function, and does not take information such as the front and rear edges of the pulse and the synchronization relationship of the edges as a controllable factor, and thus cannot further
  • the geochemical power circuit reduces the power components in the circuit and reduces the workload of some power components.
  • the controller is used too much, and the total number of circuit components is both complicated and complicated, which limits the reliability and conversion efficiency of the power supply.
  • the reason is: The more controllers in the circuit, not only increase the power conversion cost, but also increase The failure rate of circuit operation; the more power components in the circuit, not only the switching loss and conduction loss of the switching power supply itself will increase, but also the work failure rate naturally increases. Summary of the invention In order to achieve the specifications when working alone at all levels of the guaranteed and superior switching power supply, the switching power supply circuit is reduced, the power components and controllers in the circuit are reduced, and the power conversion efficiency, reliability and reliability are significantly improved. Practicality, the present invention proposes a multilateral edge synchronous switching power supply and a method of operating the same.
  • the invention provides a multilateral edge synchronous switching power supply, comprising:
  • a switching conversion unit configured to convert alternating current into high voltage direct current, and convert the high voltage direct current into high voltage alternating current
  • a DC output unit configured to rectify the high voltage alternating current and output the same
  • a multi-edge edge synchronization controller connected to the switch conversion unit and the DC output unit, detecting an operating state of the switching power supply, generating a temporal segment within the effective switching cycle, and generating a pulse width controllable
  • the edge synchronization timing controllable modulation pulse signal is used to control the operation of the switching unit.
  • the switch converting unit 201 includes: an alternating current power source, first and second unidirectional electronic devices, a storage inductor, a transducing transformer, a capacitor, first and second main switching devices, and first and second auxiliary switches Device; among them,
  • the first and second unidirectional electronic devices are connected in series, and the first and second main switching devices are connected in series, and an energy storage inductor and an alternating current power source are connected between their midpoints of the series, thereby forming a boost type Switching circuit to obtain high voltage direct current;
  • the first and second auxiliary switching devices are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the first and second main switching devices in series, thereby forming a full bridge power transfer switch. a circuit to achieve isolated transmission of high voltage direct current;
  • the AC power source is coupled to the polygon edge synchronization controller 203 such that the operational state of the controller can be synchronized to the polarity change of the AC power source.
  • the switch conversion unit 301 is a single-phase half-bridge switch conversion unit, including: an AC power source, first and second unidirectional electronic devices, first and second capacitors, first and second main switching devices, energy storage inductors, Transducing transformer; wherein
  • the first and second unidirectional electronic devices are connected in series, and the first and second main switching devices are connected in series, and an energy storage inductor and an alternating current power source are connected between their midpoints of the series, thereby forming a boost type Switching circuit to obtain high voltage direct current;
  • the first and second capacitors are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the series connection of the first and second main switching devices, thereby forming a half bridge power conversion switch circuit.
  • the AC power supply and the multiple edge connector synchronization controller 303 so that the controller can synchronize the operation state change of the polarity of the AC power supply.
  • the switch conversion unit 305 is a three-phase half-bridge transfer switch unit, including: first, second, and third alternating current power sources, first, second, and third energy storage inductors, first, second, and third transducers Transformer, first and second capacitors, first and second main switching devices, third and fourth main switching devices, fifth and sixth main switching devices;
  • the first and second main switching devices are connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high-voltage direct current of the first phase;
  • the third and fourth main switching devices are connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high voltage direct current of the second phase;
  • the second capacitor is connected in series, and a first transducing transformer is connected between the midpoint of the series connection and the midpoint of the first and second main switching devices, thereby forming a half bridge power conversion switch circuit to realize the first Isolation transmission of phase high voltage direct current
  • the first and second capacitors are connected in series, and a second transducing transformer is connected between the midpoint of the series and the midpoint of the series connection of the third and fourth main switching devices, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the second phase;
  • the first and second capacitors are connected in series, and a third transducing transformer is connected between the midpoint of the series and the midpoint of the fifth and sixth main switching devices in series, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the third phase;
  • the first, second, and third alternating current power sources are coupled to the multilateral edge synchronization controller 307 such that the operating state of the controller can be synchronized with the polarity change and phase change of the three-phase alternating current power source.
  • the multilateral edge synchronization controller includes:
  • the AC polarity detecting unit 401 is configured to provide information about size and polarity change of the AC power source;
  • the overload detecting unit 402 is configured to provide protection of the power carrying capacity;
  • the power factor detecting unit 403 is configured to provide an inverse of the power quality factor correction quality;
  • the DC output feedback detecting unit 404 is configured to provide closed loop feedback of the load power source;
  • Multiple edge sync timing generator unit 405, 401, the overload detection unit 402, the power factor detection unit 403, the DC output feedback detection unit 404 is connected to the AC polarity detection unit, and receive their signals, generating effective switching cycle Four temporal segments 506;
  • An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal.
  • the pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
  • the multilateral edge timing generator unit includes: a main switch timing 501 in an active switching period and an auxiliary switching timing 502 in an active switching period, a main switching synchronization trailing edge 503, a secondary switching synchronization leading edge 504, and a secondary switching synchronization trailing edge 505.
  • the effective switching period includes four temporal segments 506, including:
  • the main switch operating time segment is used for energy storage of the power factor correction circuit
  • the auxiliary switch working state segment is used for the first energy conversion of the power switch circuit while continuing the energy storage state of the power factor correction circuit;
  • the time switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the second energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
  • the state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
  • the first and second unidirectional electronic devices are diodes.
  • the above main switching device and auxiliary switching device are field effect transistors or Hanji transistors or insulated gate bipolar transistors or controllable bidirectional electronic switches.
  • the invention also provides a multilateral edge synchronization controller, configured to detect an operating state of the switching power supply, generate a temporal section in an effective switching period according to the working state, and generate a pulse width controllable and an edge synchronization timing controllable
  • the modulated pulse signal is used to control the operation of the switching unit in the switching power supply, and includes: an AC polarity detecting unit 401, an overload detecting unit 402, a power factor detecting unit 403, a DC output feedback detecting unit 404, and a multilateral edge synchronization timing generation.
  • the AC polarity detecting unit 401 is configured to provide information about the size and polarity of the AC power source;
  • An overload detecting unit 402 is configured to provide protection of a power carrying capacity;
  • the power factor detecting unit 403 is configured to provide feedback of the power quality factor correction quality; the DC output feedback detecting unit 4 (M, for providing closed-loop feedback of the load power source;
  • An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal.
  • the pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
  • the edge timing generator unit is different from the working principle of all existing switching power supply controllers.
  • they only operate based on pulse width regulation, generally referred to as a pulse width controller, and the present invention Not only based on pulse width regulation, but also based on the pulse timing of FIG. 6 and the constraint relationship of pulse edges; in each active switching cycle, the main switch is generated by pressing the sequential temporal segments of T1, ⁇ 2, ⁇ 3, ⁇ 4 The output pulse of the auxiliary switch.
  • the multi-edge synchronous switching power supply and the multilateral edge synchronous controller are adopted, so that the number of circuit power components and controllers is significantly reduced, thereby not only significantly improving the present Inventing the cost performance of the power supply, but also effectively improving the power conversion efficiency and reliability.
  • FIG. 1 is a circuit diagram of a conventional switching power supply including an AC rectifying unit, a power factor correcting unit, a power switching converter unit, and a DC rectifying unit;
  • FIG. 2 is a circuit diagram of a switching power supply of the present invention
  • Figure 3 is a circuit diagram of the single-phase half-bridge switching power supply of the present invention.
  • Figure 3 is a circuit diagram of the three-phase half-bridge switching power supply of the present invention.
  • FIG. 4 is a block diagram showing the working principle of the polygon edge synchronization controller according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a multi-edge synchronization timing according to an embodiment of the present invention.
  • Figure 6 is a circuit diagram of the embodiment of Figure 2;
  • FIG. 7A to 7B are state diagrams showing the operation of the embodiment of Fig. 6; 8A to 8F are state diagrams showing the operation of the embodiment of Fig. 3A;
  • FIG. 9A through 9F are state diagrams showing the operation of the embodiment of Fig. 3B.
  • the switching power supply includes: a switch converting unit 201, configured to convert alternating current into high voltage direct current, and convert the high voltage direct current into high voltage alternating current; a direct current output unit 202, configured to rectify the high voltage alternating current and output; 203, the switching unit 201 and the DC output unit 202, and controls the switching unit 201 of the work.
  • the switch conversion unit 201 includes: an AC power source AC, first and second diodes D1, D2, a storage inductor L, a transducing transformer T1, a capacitor C, and first and second main switches SW1 and SW2. , first and second auxiliary switches SW3, SW4; wherein
  • the first and second diodes D1 and D2 are connected in series, and the first and second main switches SW1 and SW2 are connected in series, and an energy storage inductor L and an alternating current power source AC are connected between their midpoints of the series. Forming a step-up switching circuit to obtain high voltage direct current;
  • the first and second auxiliary switches SW3 and SW4 are connected in series, and a transducing transformer T1 is connected between a midpoint of the series and a midpoint of the first and second main switches SW1 and SW2.
  • Full-bridge power conversion switch circuit to achieve isolated transmission of high-voltage direct current;
  • the multilateral edge synchronization controller shown in FIG. 4 and FIG. 5 includes:
  • the AC polarity detecting unit 401 is configured to provide a size and polarity change information of the AC power source;
  • the overload detecting unit 402 is configured to provide protection of the power carrying capacity
  • the power factor detecting unit 403 is configured to provide feedback of the power quality factor correction quality;
  • the DC output feedback detecting unit 404 is configured to provide closed loop feedback of the load power source;
  • the multi-edge edge synchronization timing generator unit 405 is connected to the alternating current polarity detecting unit 401, the overload detecting unit 402, the power factor detecting unit 403, and the direct current output feedback detecting unit 404, and receives signals thereof to generate an effective switching period.
  • An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal.
  • the pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
  • the multilateral edge timing generator unit includes: a main switch timing 501 in an active switching period and an auxiliary switching timing 502 in an active switching period, a main switch synchronization trailing edge 503, a secondary switch synchronization leading edge 504, and a secondary switching synchronization trailing edge 50 5 .
  • the four time segments 506 of the effective switching period include:
  • the main switch operating time segment is used for energy storage of the power factor correction circuit
  • the auxiliary switch working state segment is used for the first energy conversion of the power switch circuit while continuing the energy storage state of the power factor correction circuit;
  • the state switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the ⁇ secondary energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
  • the state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
  • the circuit diagram of the embodiment of Fig. 2 is driven by the multi-edge synchronous controller U1 to drive the eight operational timing states of the circuit.
  • Timing Mode 1 As shown in Figure 7A, the multi-edge synchronous controller U1 operates in the T1 transient phase of the effective switching period, called the "negative T1 state"; the power factor correction switching circuit consists of the diode D2, the storage inductor L, and the AC power supply AC. And the main switch SW2 is composed. The controller arbitration result outputs a pulse, making the main switch
  • the multi-edge synchronous controller U1 operates in the T2 state section of the effective switching period, which is called "negative T2 state";
  • the power factor correction switching circuit consists of diode D2, energy storage inductor L, AC power supply AC, and main switch SW2.
  • the power conversion switch circuit is composed of an auxiliary switch tube SW3, a transducing transformer T and a main switch tube SW2.
  • the controller arbitration result increases the output of a pulse, so that the auxiliary switch SW3 is turned on when the main switch SW2 is turned on; the main switch not only continues to operate in the energy storage state of the power factor correction, but also realizes the power factor correction function, and the current flow direction is as shown in the middle point.
  • the initial power conversion state is started together with the auxiliary switch, and the power conversion function is realized.
  • the current flow direction is shown by a solid line in the figure, and it can be seen that a beneficial and remarkable feature is the power transfer at this time.
  • the switching loss of the switching process is reduced by half compared to the existing power conversion switch circuit, because one of the switching transistors SW 2 in the power conversion switch circuit is already turned on before the switching circuit is turned on;
  • Timing State 3 See Figure 7C
  • the multi-edge synchronous controller U1 operates in the T 3 state phase of the effective switching period, called the "negative T3 state";
  • the power factor correction switching circuit consists of the diode D2 'storage inductor L, the AC power source AC, the main switch tube SW1 and The capacitor C1 is composed;
  • the power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T and an auxiliary switch tube SW4.
  • the controller arbitration result causes the main switch SW2 and the auxiliary switch SW3 to be synchronously turned off at the edge 503 after the main switch is synchronized, and at the same time, the main switch SW1 and the auxiliary switch SW4 are also turned on synchronously at the auxiliary switch synchronization leading edge 504;
  • Working in the energy state correction of the energy release state not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line.
  • the second power conversion state is started together with the auxiliary switch, and the power conversion function is realized again.
  • the current flow direction is shown by the solid line in the figure, and another useful and remarkable feature can be seen from this time.
  • the switch conduction loss of the power conversion switch process is reduced to zero compared to the switching conduction loss of the existing power conversion switch circuit, because the current and power factor correction circuit of the power conversion switch circuit flowing through the switch SW1 flows through the switch SW1
  • Timing state 4 As shown in Figure 7D, the multi-edge synchronous controller U1 operates in the T4 phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit consists of the diode D2, the energy storage inductor! ⁇ , AC power supply AC, converter transformer T, auxiliary switch tube SW3 diode, and capacitor C1.
  • the controller arbitration result causes the main switch SW1 and the auxiliary switch SW4 to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dashed line in the figure. , but the power conversion state ends.
  • the above four operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current appears to be negative at the LB1 end and positive at the L2 end.
  • Timing state 5 As shown in Fig. 7E, the multi-edge synchronous controller U1 operates in the T1 state segment of the effective switching period, which is called "positive T1 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor ⁇ AC power supply AC and The main switch tube SW1 is composed.
  • the controller arbitration result makes the main switch SW1 open, and realizes two functions of AC rectification and power factor correction; at this time, the main switch unit operates in the energy storage state of the power factor correction, and the current flow direction in the circuit is as shown by the dotted line in the figure.
  • Shown Timing state 6 As shown in Fig.
  • the multi-edge synchronous controller U1 operates in the T2 transient section of the effective switching period, which is called "positive ⁇ 2 state,";
  • the power factor correction switching circuit is composed of diode D1, energy storage inductor L, and AC power supply.
  • the AC and the main switch tube SW1 are composed;
  • the power switch circuit is composed of the main switch tube SW1, the transducing transformer T and the auxiliary switch tube SW4.
  • the controller arbitration result causes the auxiliary switch SW4 to be turned on when the main switch SW1 is turned on; the main switch continues to work.
  • Timing state 7 As shown in Fig. 7G, the multi-edge synchronous controller U1 operates in the T3 state segment of the effective switching period, which is called "positive T3 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, AC power supply AC The main switch tube SW2 and the capacitor C1 are composed; the power conversion switch circuit is composed of an auxiliary switch tube SW3, a transducing transformer T, and a main switch tube SW2.
  • the controller arbitration result causes the main switch SW1 to be turned off and the auxiliary switch SW4 to be turned off synchronously at 503 after the main switch is synchronized, while the main switch SW2 and the auxiliary switch SW3 are also turned on synchronously at the auxiliary switch synchronization leading edge 504.
  • the main switch operates in the release state of the power factor correction, and not only continues to implement the power factor correction function, but also the current flow direction is shown by the dashed line in the figure.
  • the second power conversion state is started together with the auxiliary switch, and the power conversion function is realized again.
  • the current flow direction is shown by the solid line in the figure, and another useful and remarkable feature can be seen from this time.
  • the switch conduction loss of the power conversion switch process is reduced to zero compared to the switching conduction loss of the existing power conversion switch circuit, because the current and power factor correction circuit of the power conversion switch circuit flowing through the switch SW1 flows through the switch SW2
  • the current is reversed at the opposite end; another beneficial feature is that the energy released by the power factor correction circuit is not the same as the existing power factor correction circuit.
  • the energy is first transferred to the storage capacitor, but directly Transferred to the power transfer switch circuit, thus greatly reducing the capacity requirements for the storage capacitor; the grounding reduces the cost and volume of the power supply of the present invention;
  • Timing state 8 As shown in Fig. 7H, the multi-edge synchronous controller U1 operates in the T4 state segment of the effective switching period, which is called "positive T4 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, AC power supply AC , the transformer transformer T, the diode of the auxiliary switch tube SW4, and the capacitor C1.
  • the controller arbitration result causes the main switch SW2 and the auxiliary switch SW3 to be turned off synchronously at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the energy-corrected release state, and the current flow direction is as shown in the figure.
  • the dotted line is shown, but the power conversion state ends.
  • the above four operating states are repeated in sequence until the polarity of the alternating current changes. Then the circuit starts again from "Time Series 1: ".
  • the switch conversion unit 301 is a single-phase half-bridge switch conversion unit, including: an AC power supply, first and second diodes D1, D2, first and second capacitors Cl, C2, first and third 2 main switch SW1, SW2, energy storage inductor transducing transformer T1;
  • the first and second diodes D1 and D2 are connected in series, and the first and second main switches SW1 and SW2 are connected in series, and an energy storage inductor L and an alternating current power source AC are connected between their midpoints of the series. Forming a step-up switching circuit to obtain high voltage direct current;
  • the first and second capacitors C1 and C2 are connected in series, and a transducing transformer T1 is connected between the midpoint of the series connection and the midpoint of the first and second main switches SW1 and SW2, thereby forming a half.
  • Bridge power transfer switch circuit to achieve isolated transmission of high voltage direct current.
  • the multilateral edge synchronization controller is the same as above, as shown in FIGS.
  • the multilateral edge synchronization controller is connected to the AC power source AC to obtain polarity change information of the AC power source.
  • the driving of the six operational timing states of the circuit is effected by the multi-edge synchronization controller U1.
  • the difference from Embodiment 1 is that the "negative T1 state” and the “negative T2 state” in this embodiment are combined into one temporal segment and completed in the timing state 1; the "positive T1 state” and the “positive T2 state” are also For a tense segment, it is completed in the timing state 4; as shown in FIGS. 8A to 8F, it is a working state diagram of FIG. 3A.
  • Timing state 1 As shown in Figure 8A, the multi-edge synchronous controller U1 operates in the ⁇ -phase segment and the T2-phase segment of the effective switching cycle; the power factor correction switching circuit consists of the diode D2, the energy storage inductor L, the AC power source AC, and the main switch. SW2 is composed; the power conversion switch circuit is composed of a capacitor C1, a transducing transformer T and a main switch SW2.
  • the controller arbitration result makes the main switch SW2 open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function.
  • the current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts.
  • the power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
  • Timing State 2 See Figure B.
  • the M3 operates along the synchronous controller U1 in the T 3 state phase of the effective switching period, called the "negative T3 state"; the power factor correction switching circuit consists of the diode D2, the inductor L, and the AC power source AC.
  • the main switch tube SW1, the capacitor C1 and the capacitor C2 are composed; the power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T, and a capacitor C2.
  • the synchronous edge 503 is synchronously turned off, and at the same time, the main switch SW1 is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor corrected release state, and not only continues to implement the power factor correction function, but also its current flow
  • the direction is shown by the dotted line in the figure.
  • the second power conversion state is started, and the power conversion function is realized again.
  • the current flow direction is shown by the solid line in the figure, and it can be seen again that a beneficial and remarkable feature is that the power factor correction circuit releases the
  • the energy is not the same as the existing power factor correction circuit.
  • the energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor;
  • Timing State 3 As shown in Figure 8C, the multi-edge synchronous controller U1 operates in the T4 transient phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit consists of the diode D2, the storage inductor L, and the AC power supply AC. , Transducer transformer T, capacitor C2 and C1.
  • the controller arbitration result causes the main switch SW1 to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dotted line in the figure, but the power conversion state End.
  • the above three operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current appears to be negative at the right end and positive at the left end.
  • Timing state 4 As shown in Fig. 8D, the multi-edge synchronous controller U1 operates in the T1 state segment and the ⁇ 2 phase segment of the effective switching period; the power factor correction switching circuit is composed of the diode D1, the inductor L, the AC power source AC, and the main switch tube SW1.
  • the power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T and a capacitor C2.
  • the controller arbitration result makes the main switch SW1 open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function.
  • the current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts.
  • the power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
  • Timing State 5 As shown in Figure 8E, the multi-edge synchronous controller U1 operates in the T3 transient phase of the effective switching period, called the "positive T3 state"; the power factor correction switching circuit consists of the diode D1, the inductor L, the AC power source AC, and the main The switch tube SW2 and the capacitor C1 are composed; the power conversion switch circuit is composed of a capacitor C1, a transducing transformer T, and a main switch tube SW2.
  • the controller arbitration result causes the main switch SW1 to be synchronously turned off at the edge 503 after the main switch is synchronized, while the main switch SW2 is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor correction State, not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is as shown by the solid line in the figure. From this, it can be seen that another beneficial and remarkable feature is that the power factor correction circuit is released. Energy of Rather than transferring the energy to the storage capacitor first, as in the existing power factor correction circuit, it is directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the present invention;
  • Timing state 6 As shown in Fig. 8F, the multi-edge synchronous controller U1 operates in the T4 state segment of the effective switching period, which is called "positive T4 state,"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, and AC power supply. The AC, the transducing transformer T, the capacitor C2, and the capacitor C1 are composed.
  • the controller arbitration result causes the main switch SW2 to be synchronously turned off at the 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state.
  • the current flow direction is shown by the dashed line in the figure, but the power conversion state ends.
  • the switch conversion unit 305 is a three-phase half-bridge transfer switch unit, including: first, second, and third AC power sources Aca, Acb, ACc, first, second, and third inductors La, Lb, Lc, first, second and third transducing transformers Tla, T2a, T3a, first and second capacitors Cl, C2, first and second main switches SWla, SW2a, third and fourth main switches SWlb And the SW2b, the fifth and sixth main switches SWlc and SW2c, wherein the first AC power source ACa is connected in series with the first inductor La, and is connected to the first and second main switches SW1a and SW2a in series at a midpoint.
  • the SW2c is connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high-voltage direct current of the third phase;
  • the first and second capacitors C1 and C2 are connected in series, and at the midpoint of the series thereof 1 and the second main switch device SWla, SW2a are connected to the transducer transformer Tla between the midpoints of the series, thereby forming a half-bridge power conversion switch circuit to realize the isolated transmission of the high-voltage direct current of the first phase;
  • the first and second capacitors C1, C2 are connected in series, and the transducing transformer Tib is connected between the midpoint of the series connection of the third and fourth main switches SW1b, SW2b, thereby forming a half a bridge power transfer switch circuit for achieving isolated transmission of the high voltage direct current of the second phase;
  • the first and second capacitors C1, C2 are connected in series, and the transducing transformer Tlc is connected between the midpoint of the series and the midpoint of the fifth and sixth main switches SWlc, SW2c in series, thereby forming a half
  • the bridge power transfer switch circuit is used to realize the isolated transmission of the high voltage direct current of the third phase.
  • the polygon edge synchronization controller 307 is as shown in FIGS. 4 and 5.
  • Multi-edge synchronization controller The 307 is connected to the AC power sources Aca, Acb, and Acc to obtain information on changes in polarity and phase of the AC power source.
  • the driving of the 12 operational timing states of the circuit is effected by the polygon edge synchronization controller U1. Due to the relative symmetry of the three-phase power supply, only the A-phase power supply is described here to avoid a large amount of repeated text.
  • the present embodiment is identical to the second embodiment in the "negative state” and the “negative T2 state", which are combined into a temporal state and completed in the timing state 1; "positive T1 state” And the "positive state” also coincides with a tense segment, which is completed in the timing state 4; as shown in Figs. 9A to 9F.
  • Timing state 1 As shown in Fig. 9A, the multi-edge synchronous controller U1 operates in the T1 state segment and the T2 transient segment of the effective switching period; the power factor correction switching circuit is composed of diodes D2b, D2c, inductor La, phase A AC power source ACa and The main switch SW2a is composed of; the power conversion switch circuit is composed of a capacitor CI, an A-phase transducing transformer Tla and a main switch SW2a.
  • the controller arbitration result makes the main switch SW2a open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function.
  • the current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts.
  • the power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
  • Timing State 2 See Figure 9B, the multi-edge synchronous controller ⁇ operates in the T3 transient phase of the effective switching period, called the “negative ⁇ 3 state”; the power factor correction switching circuit is diode-D2b, D2c, inductor La, A-phase AC
  • the power supply ACa, the main switch SW1a, the capacitors C1 and C2 are composed; the power conversion switch circuit is composed of a main switch SWla, an A-phase AC power source Tla, and a capacitor C2.
  • the controller arbitration result causes the main switch SW2a to be synchronously turned off at the edge 503 after the main switch is synchronized, and at the same time the main switch SW1a is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor corrected release state , not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line in the figure.
  • the second power conversion state is started, and the power conversion function is realized again.
  • the current flow direction is shown by the solid line in the figure, and it can be seen again that a beneficial and remarkable feature is the power factor correction circuit.
  • the energy is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the present invention;
  • Timing State 3 As shown in Figure 9C, the multi-edge synchronous controller U1 operates in the T4 transient phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit is diode-D2b, D2c, inductive La, A-phase AC Power supply ACa, A-phase converter transformer Tla, capacitor C2 and C1.
  • the controller arbitration result causes the main switch SWla to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to work in the work.
  • the rate-corrected release state, the current flow direction is shown by the dotted line in the figure, but the power conversion state ends.
  • the above three operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current ACa appears to be negative at the right end and positive at the left end.
  • Timing state 4 As shown in Fig. 9D, the multi-edge synchronous controller U1 operates in the ⁇ -phase segment and the T2-phase segment of the effective switching cycle; the power factor correction switching circuit is composed of a diode Dlb, Die, an inductor La, an A-phase AC power source ACa, and The main switch SWla is composed of; the power conversion switch circuit is composed of a main switch SWla, an A-phase transducing transformer Tla and a capacitor C2.
  • the controller arbitration result makes the main switch SWla open; the main switch not only operates in the energy storage state of the power factor correction, but also realizes the power factor correction function.
  • the current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts.
  • the power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
  • Timing State 5 As shown in Figure 9E, the multi-edge synchronous controller U1 operates in the T3 transient phase of the effective switching period, called the "positive T3 state"; the power factor correction switching circuit is diode-connected by the diodes Dlb, Dlc, the inductor La, A.
  • the power supply ACa, the main switch SW2a and the capacitor C1 are composed; the power conversion switch circuit is composed of a capacitor C1, an A-phase transducing transformer Tla and a main switch SW2a.
  • the controller arbitration result causes the main switch SW1a to be synchronously turned off at the edge 503 after the main switch is synchronized, while the main switch SW2a is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor correction State, not only continue to achieve power factor correction function, its current flow direction is shown in the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is as shown by the solid line in the figure. From this, it can be seen that another beneficial and remarkable feature is that the power factor correction circuit releases.
  • the energy is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the invention are reduced;
  • Timing State 6 As shown in Figure 9F, the multi-edge synchronous controller U1 operates in the T4 transient phase of the active switching period, called the "positive T4 state"; the power factor correction switching circuit is diode-connected by the diodes Dlb, Die, the inductor La, A. Power supply ACa, A-phase converter transformer Tla, capacitor C2 and CI.
  • the controller arbitration result causes the main switch SW2a to be synchronously turned off at the 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dotted line in the figure, but the power conversion The state ends.
  • the main switch and the auxiliary switch may be a field effect transistor or a bipolar transistor or an insulated gate micro transistor or a controllable bidirectional electronic switch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

A multi-edge synchronous switching power supply which includes a switch-converting unit, a DC output unit and a multi-edge synchronous controller. The multi-edge synchronous controller includes an AC polarity detection unit, an overload detection unit, a power factor detection unit, a DC output feedback detection unit, a multi-edge synchronous timing generator unit and an AC polarity synchronous switch and drive signal synthesizing and mapping unit. Accordingly, the number of the circuit elements is reduced, the switching power supply circuit and the control circuit are simplified, and the activity and the reliability of the power converting of the switching power supply are improved.

Description

一种多边沿同步开关电源及其控制器 技术领域  Multi-edge synchronous switching power supply and controller thereof
本发明涉及一种开关电源及其控制器， 特别涉及一种化筒开关电源电 路， 提升电源转换效率的开关电源， 具体的讲， 涉及一种多边沿同步开关电 源及其控制器。 背景技术  The invention relates to a switching power supply and a controller thereof, in particular to a power supply circuit for a cylinder switching power supply, a switching power supply for improving power conversion efficiency, and more particularly to a multilateral edge synchronous switching power supply and a controller thereof. Background technique
如图 1所示为现有的包括交流整流单元、功率因素校正单元、功率开关 转换单元和直流整流单元的一种开关电源电路图。  FIG. 1 is a circuit diagram of a conventional switching power supply including an AC rectifying unit, a power factor correcting unit, a power switch converting unit, and a DC rectifying unit.
如图所示， 现有的完整的开关电源至少为四级：  As shown, the existing complete switching power supply is at least four levels:
第一级为交流整流输入单元： 将交流转变为单极性直流；  The first stage is an AC rectification input unit: converting AC to unipolar DC;
第二级为功率因素校正单元： 在功率因素校正控制器的工作期，将单极 性直流转变为稳定的高压直流，控制器对电路开关的控制方式只是调控输出 驱动脉冲的宽度；  The second stage is the power factor correction unit: During the working period of the power factor correction controller, the monopolar direct current is converted into a stable high voltage direct current, and the controller controls the circuit switch only to adjust the width of the output drive pulse;
第三级为功率开关转换单元： 在开关电源脉宽控制器的工作期，将高压 直流隔离传递给直流输出级，控制器对电路开关的控制方式也只是调控输出 驱动^ 中的宽度；  The third stage is the power switch conversion unit: during the working period of the switching power supply pulse width controller, the high voltage DC isolation is transmitted to the DC output stage, and the controller controls the circuit switch only to adjust the width of the output driver ^;
第四级为直流输出单元：将变压转换后的高频交流整流输出， 从而完成 开关电源的完整功率转换周期。  The fourth stage is the DC output unit: the high-frequency AC rectification output after the transformation is completed, thereby completing the complete power conversion cycle of the switching power supply.
采用上述单元的开关电源， 存在以下不足：  The switching power supply using the above unit has the following disadvantages:
现有控制器的技术只是为了完成指定的单一功能而产生可控脉冲宽度 的调制脉冲， 而没有利用将这一脉冲的前后边沿， 以及边沿的同步关系等信 息作为可控因素， 因此无法达到进一步地化筒电源电路， 减少电路中的功率 元件， 以及减轻一些功率元件的工作负荷的目的。  The technology of the existing controller is only to generate a modulated pulse with a controllable pulse width in order to complete a specified single function, and does not take information such as the front and rear edges of the pulse and the synchronization relationship of the edges as a controllable factor, and thus cannot further The geochemical power circuit reduces the power components in the circuit and reduces the workload of some power components.
控制器的使用过多， 总的电路元件数量既多又复杂、限制了进一步提高 电源的可靠性和转换效率， 原因为： 电路中的控制器越多， 不但会增加电源 转换成本， 也会增加电路工作的失效率； 电路中的功率元件越多， 不但开关 电源自身的开关损耗和导通损耗必然增大， 而且工作的失效率自然增加。 发明内容 为达到在完全保证并优于现有开关电源的各级独自工作时的指标情况 下， 化简开关电源电路， 减少电路中的功率元件和控制器， 显箸地提升电源 转换效率，可靠性和实用性， 本发明提出了一种多边沿同步开关电源及其工 作方法。 The controller is used too much, and the total number of circuit components is both complicated and complicated, which limits the reliability and conversion efficiency of the power supply. The reason is: The more controllers in the circuit, not only increase the power conversion cost, but also increase The failure rate of circuit operation; the more power components in the circuit, not only the switching loss and conduction loss of the switching power supply itself will increase, but also the work failure rate naturally increases. Summary of the invention In order to achieve the specifications when working alone at all levels of the guaranteed and superior switching power supply, the switching power supply circuit is reduced, the power components and controllers in the circuit are reduced, and the power conversion efficiency, reliability and reliability are significantly improved. Practicality, the present invention proposes a multilateral edge synchronous switching power supply and a method of operating the same.
本发明提供的一种多边沿同步开关电源， 包括：  The invention provides a multilateral edge synchronous switching power supply, comprising:
开关转换单元， 用于将交流电转变为高压直流电、将所述高压直流电转 变为高压交流电；  a switching conversion unit, configured to convert alternating current into high voltage direct current, and convert the high voltage direct current into high voltage alternating current;
直流输出单元， 用于将所述高压交流电整流后输出；  a DC output unit, configured to rectify the high voltage alternating current and output the same;
多边沿同步控制器， 与所述开关转换单元和直流输出单元连接，检测该 开关电源的工作状态， 居所述工作状态生成有效开关周期内的时态段， 并 产生脉宽可控的及其边沿同步时机可控的调制脉冲信号，用以控制所述开关 转换单元的工作。  a multi-edge edge synchronization controller, connected to the switch conversion unit and the DC output unit, detecting an operating state of the switching power supply, generating a temporal segment within the effective switching cycle, and generating a pulse width controllable The edge synchronization timing controllable modulation pulse signal is used to control the operation of the switching unit.
所述开关转换单元 201包括： 交流电源、 第 1和第 2单向电子装置、 一储 能电感、 一换能变压器、 一电容、 第 1和第 2主开关装置、 第 1和第 2辅助开关 装置； 其中，  The switch converting unit 201 includes: an alternating current power source, first and second unidirectional electronic devices, a storage inductor, a transducing transformer, a capacitor, first and second main switching devices, and first and second auxiliary switches Device; among them,
所述的第 1和第 2单向电子装置串联， 所述的第 1和第 2主开关装置串联， 并在它们的串联中点之间接入储能电感和交流电源，由此组成升压型开关电 路， 从而获得高压直流电；  The first and second unidirectional electronic devices are connected in series, and the first and second main switching devices are connected in series, and an energy storage inductor and an alternating current power source are connected between their midpoints of the series, thereby forming a boost type Switching circuit to obtain high voltage direct current;
所述的第 1和第 2辅助开关装置串联， 并在它的串联中点与所述的第 1和 第 2主开关装置串联中点之间接入换能变压器， 由此组成全桥功率转换开关 电路， 以实现高压直流电的隔离传送；  The first and second auxiliary switching devices are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the first and second main switching devices in series, thereby forming a full bridge power transfer switch. a circuit to achieve isolated transmission of high voltage direct current;
所述交流电源与所述多边沿同步控制器 203连接， 使得控制器的工作状 态能同步于交流电源的极性变化。  The AC power source is coupled to the polygon edge synchronization controller 203 such that the operational state of the controller can be synchronized to the polarity change of the AC power source.
所述开关转换单元 301为单相半桥开关转换单元， 包括： 交流电源、 第 1 和第 2单向电子装置、 第 1和第 2电容、 第 1和第 2主开关装置、 储能电感、 换 能变压器； 其中，  The switch conversion unit 301 is a single-phase half-bridge switch conversion unit, including: an AC power source, first and second unidirectional electronic devices, first and second capacitors, first and second main switching devices, energy storage inductors, Transducing transformer; wherein
所述的第 1和第 2单向电子装置串联， 所述的第 1和第 2主开关装置串联， 并在它们的串联中点之间接入储能电感和交流电源，由此组成升压型开关电 路， 从而获得高压直流电；  The first and second unidirectional electronic devices are connected in series, and the first and second main switching devices are connected in series, and an energy storage inductor and an alternating current power source are connected between their midpoints of the series, thereby forming a boost type Switching circuit to obtain high voltage direct current;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 1和第 2主开关 装置串联中点之间接入换能变压器， 由此组成半桥功率转换开关电路， 以实 现高压直流电的隔离传送； The first and second capacitors are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the series connection of the first and second main switching devices, thereby forming a half bridge power conversion switch circuit. Real Isolation transmission of high voltage direct current;
所述交流电源与所述多边沿同步控制器 303连接， 使得控制器的工作状 态能同步于交流电源的极性变化。 The AC power supply and the multiple edge connector synchronization controller 303, so that the controller can synchronize the operation state change of the polarity of the AC power supply.
所述开关转换单元 305为三相半桥转换开关单元， 包括： 第 1、 第 2和第 3 交流电源， 第 1、 第 2和第 3储能电感、 第 1、 第 2和第 3换能变压器、 第 1和第 2 电容、 第 1和第 2主开关装置、 第 3和第 4主开关装置、 第 5和第 6主开关装置； 其中， The switch conversion unit 305 is a three-phase half-bridge transfer switch unit, including: first, second, and third alternating current power sources, first, second, and third energy storage inductors, first, second, and third transducers Transformer, first and second capacitors, first and second main switching devices, third and fourth main switching devices, fifth and sixth main switching devices;
所述的第 1交流电源与第 1储能电感串联之后，与第 1和第 2主开关装置串 联中点相连， 由此组成升压型开关电路， 从而获得第 1相的高压直流电； 所述的第 2交流电源与第 2储能电感串联之后，与第 3和第 4主开关装置串 联中点相连， 由此组成升压型开关电路， 从而获得第 2相的高压直流电； 所述的第 3交流电源与第 3储能电感串联之后，与第 5和第 6主开关装置串 联中点相连， 由此组成升压型开关电路， 从而获得第 3相的高压直流电； 所述的笫 1和第 2电容串联，并在它的串联中点与所述的第 1和第 2主开关 装置串联中点之间接入第 1换能变压器， 由此组成半桥功率转换开关电路， 以实现第 1相的高压直流电的隔离传送； After the first AC power source is connected in series with the first energy storage inductor, the first and second main switching devices are connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high-voltage direct current of the first phase; After the second AC power source is connected in series with the second energy storage inductor, the third and fourth main switching devices are connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high voltage direct current of the second phase; 3 after the AC power source is connected in series with the third energy storage inductor, and connected to the midpoint of the fifth and sixth main switching devices in series, thereby forming a step-up switching circuit, thereby obtaining the high voltage direct current of the third phase; The second capacitor is connected in series, and a first transducing transformer is connected between the midpoint of the series connection and the midpoint of the first and second main switching devices, thereby forming a half bridge power conversion switch circuit to realize the first Isolation transmission of phase high voltage direct current;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 3和第 4主开关 装置串联中点之间接入第二换能变压器， 由此組成半桥功率转换开关电路， 以实现第 2相的高压直流电的隔离传送；  The first and second capacitors are connected in series, and a second transducing transformer is connected between the midpoint of the series and the midpoint of the series connection of the third and fourth main switching devices, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the second phase;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 5和第 6主开关 装置串联中点之间接入第 3换能变压器， 由此组成半桥功率转换开关电路， 以实现第 3相的高压直流电的隔离传送；  The first and second capacitors are connected in series, and a third transducing transformer is connected between the midpoint of the series and the midpoint of the fifth and sixth main switching devices in series, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the third phase;
所述第 1、第 2和笫 3交流电源与所述多边沿同步控制器 307连接，使得控 制器的工作状态能同步于三相交流电源的极性变化以及相位变化。  The first, second, and third alternating current power sources are coupled to the multilateral edge synchronization controller 307 such that the operating state of the controller can be synchronized with the polarity change and phase change of the three-phase alternating current power source.
所述多边沿同步控制器包括：  The multilateral edge synchronization controller includes:
交流极性检测单元 401、 过负载检测单元 402、 功率因素检测单元 403、 直流输出反馈检测单元 404、 多边沿同步时序产生器单元 405和交流极性同 步开关和驱动信号合成、 映射单元 406; 其中， 交流极性检测单元 401 , 用 于提供交流电源的大小和极性变化信息；  AC polarity detecting unit 401, overload detecting unit 402, power factor detecting unit 403, DC output feedback detecting unit 404, polygon edge synchronization timing generator unit 405, and AC polarity synchronization switch and driving signal synthesis, mapping unit 406; The AC polarity detecting unit 401 is configured to provide information about size and polarity change of the AC power source;
过负载检测单元 402， 用于提供电源承载能力的保护； 功率因素检测单元 403， 用于提供电源功率因素校正质量的反情； 直流输出反馈检测单元 404 , 用于提供负载电源的闭环反馈； The overload detecting unit 402 is configured to provide protection of the power carrying capacity; The power factor detecting unit 403 is configured to provide an inverse of the power quality factor correction quality; the DC output feedback detecting unit 404 is configured to provide closed loop feedback of the load power source;
多边沿同步时序产生器单元 405， 与所述交流极性检测单元 401、 过负 载检测单元 402、功率因素检测单元 403、直流输出反馈检测单元 404连接， 并且接收它们的信号， 生成有效开关周期内的四个时态段 506; Multiple edge sync timing generator unit 405, 401, the overload detection unit 402, the power factor detection unit 403, the DC output feedback detection unit 404 is connected to the AC polarity detection unit, and receive their signals, generating effective switching cycle Four temporal segments 506;
交流极性同步开关和驱动信号合成、 映射单元 406 , 用于并列接收所述 多边沿同步时序产生器单元及交流极性检测单元 401、 过负载检测单元 402 的信号， 以其作为输入信号，产生主开关和辅助开关工作所需的脉宽可控的 及其边沿同步时机可控的调制脉冲信号。 An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal. The pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
所述的多边沿时序产生器单元包括： 有效开关周期内的主开关时序 501 和有效开关周期内的辅助开关时序 502 , 主开关同步后沿 503 , 辅开关同步 前沿 504 , 以及辅开关同步后沿 505。  The multilateral edge timing generator unit includes: a main switch timing 501 in an active switching period and an auxiliary switching timing 502 in an active switching period, a main switching synchronization trailing edge 503, a secondary switching synchronization leading edge 504, and a secondary switching synchronization trailing edge 505.
所述的有效开关周期包括四个时态段 506， 包括：  The effective switching period includes four temporal segments 506, including:
主开关工作时态段， 用于功率因素校正电路的储能；  The main switch operating time segment is used for energy storage of the power factor correction circuit;
辅助开关工作时态段， 用于功率开关电路的第一次能量转换， 同时继续 功率因素校正电路的储能态；  The auxiliary switch working state segment is used for the first energy conversion of the power switch circuit while continuing the energy storage state of the power factor correction circuit;
主开关与辅助开关通断工作同步换态的时态段，用于功率开关电路的第 二次能量转换， 同时功率因素校正电路转换为释能态；  The time switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the second energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
主开关、 辅助开关全部关断的时态段， 使得能量转换得以控制。  The state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
所述的第 1和第 2单向电子装置为二极管。  The first and second unidirectional electronic devices are diodes.
上述主开关装置、辅助开关装置为场效应晶体管或汉极晶体管或绝缘栅 双极晶体管或可控的双向电子开关。  The above main switching device and auxiliary switching device are field effect transistors or Hanji transistors or insulated gate bipolar transistors or controllable bidirectional electronic switches.
本发明还提供一种多边沿同步控制器， 用于检测开关电源的工作状态， 根据所述工作状态生成有效开关周期内的时态段，并产生脉宽可控的及其边 沿同步时机可控的调制脉冲信号， 用以控制开关电源中开关转换单元的工 作， 包括： 交流极性检测单元 401、 过负载检测单元 402、 功率因素检测单 元 403、 直流输出反馈检测单元 404、 多边沿同步时序产生器单元 405和交 流极性同步开关和驱动信号合成、 映射单元 406; 其中，  The invention also provides a multilateral edge synchronization controller, configured to detect an operating state of the switching power supply, generate a temporal section in an effective switching period according to the working state, and generate a pulse width controllable and an edge synchronization timing controllable The modulated pulse signal is used to control the operation of the switching unit in the switching power supply, and includes: an AC polarity detecting unit 401, an overload detecting unit 402, a power factor detecting unit 403, a DC output feedback detecting unit 404, and a multilateral edge synchronization timing generation. Unit 405 and AC polarity synchronization switch and drive signal synthesis, mapping unit 406;
交流极性检测单元 401 , 用于提供交流电源的大小和极性变化信息； 过负载检测单元 402 , 用于提供电源承载能力的保护； The AC polarity detecting unit 401 is configured to provide information about the size and polarity of the AC power source; An overload detecting unit 402 is configured to provide protection of a power carrying capacity;
功率因素检测单元 403， 用于提供电源功率因素校正质量的反馈； 直流输出反馈检测单元 4(M , 用于提供负载电源的闭环反馈；  The power factor detecting unit 403 is configured to provide feedback of the power quality factor correction quality; the DC output feedback detecting unit 4 (M, for providing closed-loop feedback of the load power source;
多边沿同步时序产生器单元 405 , 与所述交流极性检测单元 401、 过负 载检测单元 402、功率因素检测单元 403、直流输出反馈检测单元 4(Μ连接， 并且接收它们的信号， 生成有效开关周期内的四个时态段 506; Multiple edge sync timing generator unit 405, and the AC polarity detection unit 401, the overload detection unit 402, the power factor detection unit 403, the DC output feedback detection unit 4 ([mu], and receives signals thereof , generating four temporal segments 506 within the effective switching period;
交流极性同步开关和驱动信号合成、 映射单元 406， 用于并列接收所述 多边沿同步时序产生器单元及交流极性检测单元 401、 过负载检测单元 402 的信号， 以其作为输入信号，产生主开关和辅助开关工作所需的脉宽可控的 及其边沿同步时机可控的调制脉冲信号。 An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal. The pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
其中，所述的边沿时序产生器单元不同于现有所有的开关电源控制器的 工作原理， 现有技术中， 他们只是基于脉冲宽度的调控而工作的， 通称为脉 宽控制器， 而本发明不仅基于脉冲宽度的调控， 同时亦基于图 6的脉冲时序 和脉冲边沿的制约关系工作的； 在每个有效开关周期内， 按 T1 , Τ2 , Τ3, Τ4 的顺序时态段， 产生主开关和辅助开关的输出脉冲。  Wherein, the edge timing generator unit is different from the working principle of all existing switching power supply controllers. In the prior art, they only operate based on pulse width regulation, generally referred to as a pulse width controller, and the present invention Not only based on pulse width regulation, but also based on the pulse timing of FIG. 6 and the constraint relationship of pulse edges; in each active switching cycle, the main switch is generated by pressing the sequential temporal segments of T1, Τ2, Τ3, Τ4 The output pulse of the auxiliary switch.
本发明的有益效果在于：  The beneficial effects of the invention are:
在保持现有开关电源的各项功能完全不变的条件下，采用多边沿同步开 关电源和多边沿同步控制器， 使得电路功率元件和控制器的数量显著减少， 由此不仅显著地提高了本发明电源的性价比，同时也有效地提升了电源转换 效率和可靠性。  Under the condition that the functions of the existing switching power supply are completely unchanged, the multi-edge synchronous switching power supply and the multilateral edge synchronous controller are adopted, so that the number of circuit power components and controllers is significantly reduced, thereby not only significantly improving the present Inventing the cost performance of the power supply, but also effectively improving the power conversion efficiency and reliability.
附图说明 DRAWINGS
图 1是现有的包括交流整流单元、功率因素校正单元、功率开关转换单 元和直流整流单元的一种开关电源电路图；  1 is a circuit diagram of a conventional switching power supply including an AC rectifying unit, a power factor correcting unit, a power switching converter unit, and a DC rectifying unit;
图 2是本发明的开关电源电路图；  2 is a circuit diagram of a switching power supply of the present invention;
图 3Α是本发明的单相半桥开关电源电路图；  Figure 3 is a circuit diagram of the single-phase half-bridge switching power supply of the present invention;
图 3Β是本发明的三相半桥开关电源电路图；  Figure 3 is a circuit diagram of the three-phase half-bridge switching power supply of the present invention;
图 4是本发明实施例的多边沿同步控制器的工作原理框图；  4 is a block diagram showing the working principle of the polygon edge synchronization controller according to an embodiment of the present invention;
图 5是本发明实施例的多边沿同步时序原理图；  FIG. 5 is a schematic diagram of a multi-edge synchronization timing according to an embodiment of the present invention; FIG.
图 6是图 2的实施例电路图；  Figure 6 is a circuit diagram of the embodiment of Figure 2;
图 7Α至图 7Η是图 6的实施例的工作原理状态图； 图 8A至图 8F是图 3A的实施例的工作原理状态图； 7A to 7B are state diagrams showing the operation of the embodiment of Fig. 6; 8A to 8F are state diagrams showing the operation of the embodiment of Fig. 3A;
图 9A至图 9F是图 3B的实施例的工作原理状态图。  9A through 9F are state diagrams showing the operation of the embodiment of Fig. 3B.
具体实施方式 detailed description
参照附图说明本发明的优选实施例。  Preferred embodiments of the present invention will be described with reference to the drawings.
实施例 1  Example 1
如图 2所示， 为本发明的开关电源电路图。 该开关电源包括： 开关转换单元 201， 用于将交流电转变为高压直流电、 将所述高压直流 电转变为高压交流电； 直流输出单元 202 , 用于将所述高压交流电整流后输 出； 多边沿同步控制器 203, 与所述开关转换单元 201和直流输出单元 202连 接， 控制所述开关转换单元 201的工作。 As shown in FIG. 2, it is a circuit diagram of a switching power supply of the present invention. The switching power supply includes: a switch converting unit 201, configured to convert alternating current into high voltage direct current, and convert the high voltage direct current into high voltage alternating current; a direct current output unit 202, configured to rectify the high voltage alternating current and output; 203, the switching unit 201 and the DC output unit 202, and controls the switching unit 201 of the work.
其中， 所述开关转换单元 201包括： 交流电源 AC、 第 1和第 2二极管 Dl、 D2、 一储能电感 L、 一换能变压器 Tl、 一电容 C、 第 1和第 2主开关 SW1、 SW2、 第 1和第 2辅助开关 SW3、 SW4; 其中，  The switch conversion unit 201 includes: an AC power source AC, first and second diodes D1, D2, a storage inductor L, a transducing transformer T1, a capacitor C, and first and second main switches SW1 and SW2. , first and second auxiliary switches SW3, SW4; wherein
所述的第 1和第 2二极管 Dl、 D2串联，所述的第 1和第 2主开关 SW1、 SW2串 联， 并在它们的串联中点之间接入储能电感 L和交流电源 AC, 由此组成升压 型开关电路， 从而获得高压直流电；  The first and second diodes D1 and D2 are connected in series, and the first and second main switches SW1 and SW2 are connected in series, and an energy storage inductor L and an alternating current power source AC are connected between their midpoints of the series. Forming a step-up switching circuit to obtain high voltage direct current;
所述的第 1和第 2辅助开关 SW3、 SW4串联， 并在它的串联中点与所述的第 1和第 2主开关 SW1、 SW2串联中点之间接入换能变压器 T1 , 由此組成全桥功率 转换开关电路， 以实现高压直流电的隔离传送；  The first and second auxiliary switches SW3 and SW4 are connected in series, and a transducing transformer T1 is connected between a midpoint of the series and a midpoint of the first and second main switches SW1 and SW2. Full-bridge power conversion switch circuit to achieve isolated transmission of high-voltage direct current;
如图 4、 图 5所示所述多边沿同步控制器包括：  The multilateral edge synchronization controller shown in FIG. 4 and FIG. 5 includes:
交流极性检测单元 401、 过负载检测单元 402、 功率因素检测单元 403、 直流输出反馈检测单元 404、 多边沿同步时序产生器单元 405和交流极性同 步开关和驱动信号合成、 映射单元 406; 其中， 交流极性检测单元 401 , 用 于提供交流电源的大小.和极性变化信息；  AC polarity detecting unit 401, overload detecting unit 402, power factor detecting unit 403, DC output feedback detecting unit 404, polygon edge synchronization timing generator unit 405, and AC polarity synchronization switch and driving signal synthesis, mapping unit 406; The AC polarity detecting unit 401 is configured to provide a size and polarity change information of the AC power source;
过负载检测单元 402 , 用于提供电源承载能力的保护；  The overload detecting unit 402 is configured to provide protection of the power carrying capacity;
功率因素检测单元 403， 用于提供电源功率因素校正质量的反馈； 直流输出反馈检测单元 404 , 用于提供负载电源的闭环反馈；  The power factor detecting unit 403 is configured to provide feedback of the power quality factor correction quality; the DC output feedback detecting unit 404 is configured to provide closed loop feedback of the load power source;
多边沿同步时序产生器单元 405 , 与所述交流极性检测单元 401、 过负 载检测单元 402、功率因素检测单元 403、直流输出反馈检测单元 404连接， 并且接收它们的信号， 生成有效开关周期内的四个时态段 506; 交流极性同步开关和驱动信号合成、 映射单元 406 , 用于并列接收所述 多边沿同步时序产生器单元及交流极性检测单元 401、 过负载检测单元 402 的信号， 以其作为输入信号，产生主开关和辅助开关工作所需的脉宽可控的 及其边沿同步时机可控的调制脉冲信号。 The multi-edge edge synchronization timing generator unit 405 is connected to the alternating current polarity detecting unit 401, the overload detecting unit 402, the power factor detecting unit 403, and the direct current output feedback detecting unit 404, and receives signals thereof to generate an effective switching period. Four tense segments 506; An AC polarity synchronizing switch and driving signal synthesizing and mapping unit 406 is configured to receive signals of the multi-edge sync timing generator unit, the AC polarity detecting unit 401, and the overload detecting unit 40 2 in parallel as an input signal. The pulse width controllable and the edge synchronization timing controllable modulation pulse signal required for the operation of the main switch and the auxiliary switch are generated.
所述的多边沿时序产生器单元包括： 有效开关周期内的主开关时序 501 和有效开关周期内的辅助开关时序 502 , 主开关同步后沿 503， 辅开关同步 前沿 504， 以及辅开关同步后沿 505。 The multilateral edge timing generator unit includes: a main switch timing 501 in an active switching period and an auxiliary switching timing 502 in an active switching period, a main switch synchronization trailing edge 503, a secondary switch synchronization leading edge 504, and a secondary switching synchronization trailing edge 50 5 .
所述的有效开关周期的四个时态段 506， 包括：  The four time segments 506 of the effective switching period include:
主开关工作时态段， 用于功率因素校正电路的储能；  The main switch operating time segment is used for energy storage of the power factor correction circuit;
辅助开关工作时态段， 用于功率开关电路的第一次能量转换， 同时继续 功率因素校正电路的储能态；  The auxiliary switch working state segment is used for the first energy conversion of the power switch circuit while continuing the energy storage state of the power factor correction circuit;
主开关与辅助开关通断工作同步换态的时态段，用于功率开关电路的笫 二次能量转换， 同时功率因素校正电路转换为释能态；  The state switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the 二次 secondary energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
主开关、 辅助开关全部关断的时态段， 使得能量转换得以控制。  The state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
如图 6所示为图 2的实施例电路图，由多边沿同步控制器 U1实现对电路的 8种运行时序态的驱动。  As shown in Fig. 6, the circuit diagram of the embodiment of Fig. 2 is driven by the multi-edge synchronous controller U1 to drive the eight operational timing states of the circuit.
首先从交流电的极性呈现为 LB1端为正， L2端为负的情形开始说明。 时序态 1: 见图 7A, 多边沿同步控制器 U1工作在有效开关周期的 T1时态 段， 称为 "负 T1态" ； 功率因素校正开关电路由二极管 D2 , 储能电感 L， 交 流电源 AC以及主开关 SW2组成。 控制器仲裁结果输出一个脉冲， 使得主开关 First, the polarity of the alternating current is presented as the case where the LB1 end is positive and the L2 end is negative. Timing Mode 1: As shown in Figure 7A, the multi-edge synchronous controller U1 operates in the T1 transient phase of the effective switching period, called the "negative T1 state"; the power factor correction switching circuit consists of the diode D2, the storage inductor L, and the AC power supply AC. And the main switch SW2 is composed. The controller arbitration result outputs a pulse, making the main switch
SW2开通， 实现交流整流和功率因素校正的两个功能； 此时的主开关 SW2工作 在功率因素校正的储能态， 电路中的电流流动方向如图中点划线所示； 时序态 2: 见图 7B， 多边沿同步控制器 U1工作在有效开关周期的 T2时态 段， 称为 "负 T2态" ； 功率因素校正开关电路由二极管 D2 , 储能电感 L, 交 流电源 AC以及主开关 SW2组成； 功率转换开关电路由辅助开关管 SW3 ,换能变 压器 T以及主开关管 SW2组成。控制器仲裁结果增加输出一个脉冲，使得辅助 开关 SW3在主开关 SW2开通时开通；主开关除了继续工作在功率因素校正的储 能态， 不仅实现功率因素校正功能， 其电流流动方向如图中点划线所示，同 时与辅助开关一起开始了初次功率转换态， 实现功率转换功能，其电流流动 方向如图中实划线所示，从中可以看出一个有益的显著特点是此时的功率转 换开关过程的开关损耗较之现有的功率转换开关电路减少了一半，因为功率 转换开关电路中的一个开关管 SW2在此开关电路开通之前就已经开通过了； 时序态 3: 见图 7C， 多边沿同步控制器 U1工作在有效开关周期的 T3时态 段， 称为 "负 T3态" ； 功率因素校正开关电路由二极管 D2 ' 储能电感 L， 交 流电源 AC，主开关管 SW1以及电容 C1組成；功率转换开关电路由主开关管 SW1 , 换能变压器 T以及辅助开关管 SW4组成。 控制器仲裁结果使得主开关 SW2和辅 助开关 SW3, 在主开关同步后沿 503处同步关断， 与此同时主开关 SW1和辅助 开关 SW4，也在辅开关同步前沿 504处同步地开通； 主开关工作在功率因素校 正的释能态， 不仅继续实现功率因素校正功能，其电流流动方向如图中虚划 线所示。 与此同时与辅助开关一起开始了第二次功率转换态，再次实现功率 转换功能， 其电流流动方向如图中实划线所示，从中再次可以看出另一个有 益的显著特点是此时的功率转换开关过程的开关导通损耗较之现有的功率 转换开关电路的开关导通损耗近乎减少到零，因为功率转换开关电路流经开 关管 SW1的电流与功率因素校正电路流经开关管 SW1的电流此时正好相反而 抵消；进一步的一个有益的显著特点是功率因素校正电路所释放出的能量不 是如现有的功率因素校正电路所为，将能量先转移到储能电容上， 而是直接 转移到了功率转换开关电路中， 因此极大地减轻了对储能电容的容量要求； 间接地减小了本发明电源的成本和体积； SW2 is turned on to realize two functions of AC rectification and power factor correction; at this time, the main switch SW2 operates in the energy storage state of the power factor correction, and the current flow direction in the circuit is indicated by a chain line in the figure; As shown in Fig. 7B, the multi-edge synchronous controller U1 operates in the T2 state section of the effective switching period, which is called "negative T2 state"; the power factor correction switching circuit consists of diode D2, energy storage inductor L, AC power supply AC, and main switch SW2. The power conversion switch circuit is composed of an auxiliary switch tube SW3, a transducing transformer T and a main switch tube SW2. The controller arbitration result increases the output of a pulse, so that the auxiliary switch SW3 is turned on when the main switch SW2 is turned on; the main switch not only continues to operate in the energy storage state of the power factor correction, but also realizes the power factor correction function, and the current flow direction is as shown in the middle point. As shown by the scribe line, the initial power conversion state is started together with the auxiliary switch, and the power conversion function is realized. The current flow direction is shown by a solid line in the figure, and it can be seen that a beneficial and remarkable feature is the power transfer at this time. The switching loss of the switching process is reduced by half compared to the existing power conversion switch circuit, because one of the switching transistors SW 2 in the power conversion switch circuit is already turned on before the switching circuit is turned on; Timing State 3: See Figure 7C The multi-edge synchronous controller U1 operates in the T 3 state phase of the effective switching period, called the "negative T3 state"; the power factor correction switching circuit consists of the diode D2 'storage inductor L, the AC power source AC, the main switch tube SW1 and The capacitor C1 is composed; the power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T and an auxiliary switch tube SW4. The controller arbitration result causes the main switch SW2 and the auxiliary switch SW3 to be synchronously turned off at the edge 503 after the main switch is synchronized, and at the same time, the main switch SW1 and the auxiliary switch SW4 are also turned on synchronously at the auxiliary switch synchronization leading edge 504; Working in the energy state correction of the energy release state, not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line. At the same time, the second power conversion state is started together with the auxiliary switch, and the power conversion function is realized again. The current flow direction is shown by the solid line in the figure, and another useful and remarkable feature can be seen from this time. The switch conduction loss of the power conversion switch process is reduced to zero compared to the switching conduction loss of the existing power conversion switch circuit, because the current and power factor correction circuit of the power conversion switch circuit flowing through the switch SW1 flows through the switch SW1 The current is reversed at the opposite end; a further advantageous feature is that the energy released by the power factor correction circuit is not the same as the existing power factor correction circuit, and the energy is first transferred to the storage capacitor, but Direct transfer to the power transfer switch circuit, thus greatly reducing the capacity requirements for the storage capacitor; the grounding reduces the cost and volume of the power supply of the present invention;
时序态 4: 见图 7D, 多边沿同步控制器 U1工作在有效开关周期的 T4时态 段， 称为 "负 T4态" ； 功率因素校正开关电路由二极管 D2 , 储能电感！^， 交 流电源 AC, 换能变压器 T, 辅助开关管 SW3的二极管， 以及电容 C1組成。 控制 器仲裁结果使得主开关 SW1和辅助开关 SW4, 在辅开关同步后沿 505处同步关 断， 开关单元继续工作在功率因素校正的释能态，其电流流动方向如图中虚 划线所示， 但功率转换态结束。  Timing state 4: As shown in Figure 7D, the multi-edge synchronous controller U1 operates in the T4 phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit consists of the diode D2, the energy storage inductor! ^, AC power supply AC, converter transformer T, auxiliary switch tube SW3 diode, and capacitor C1. The controller arbitration result causes the main switch SW1 and the auxiliary switch SW4 to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dashed line in the figure. , but the power conversion state ends.
上述 4种运行态顺序重复， 直至交流电的极性转变。 此时， 交流电的极 性呈现为 LB1端为负， L2端为正。  The above four operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current appears to be negative at the LB1 end and positive at the L2 end.
时序态 5: 见图 7E, 多边沿同步控制器 U1工作在有效开关周期的 T1时态 段， 称为 "正 T1态" ； 功率因素校正开关电路由二极管 D1 , 储能电感^ 交 流电源 AC以及主开关管 SW1組成。控制器仲裁结果使得主开关 SW1开通， 实现 交流整流和功率因素校正的两个功能；此时的主开关单元工作在功率因素校 正的储能态， 电路中的电流流动方向如图中点划线所示； 时序态 6: 见图 7F， 多边沿同步控制器 Ul工作在有效开关周期的 T2时态 段， 称为 "正 Τ2态，， ； 功率因素校正开关电路由二极管 Dl， 储能电感 L, 交 流电源 AC以及主开关管 SW1组成； 功率转换开关电路由主开关管 SW1 ,换能变 压器 T以及辅助开关管 SW4组成。 控制器仲裁结果使得辅助开关 SW4在主开关 SW1开通时开通；主开关除了继续工作在功率因素校正的储能态，不仅实现功 率因素校正功能， 其电路中的电流流动方向如图中点划线所示，同时与辅助 开关一起开始了初次功率转换态， 实现功率转换功能，其电流流动方向如图 中实划线所示，从中可以看出一个有益的显著特点是此时的功率转换开关过 程的开关损耗较之现有的功率转换开关电路减少了一半，因为功率转换开关 电路中的一个开关管 SW1在此开关电路开通之前就已经开通过了； Timing state 5: As shown in Fig. 7E, the multi-edge synchronous controller U1 operates in the T1 state segment of the effective switching period, which is called "positive T1 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor ^ AC power supply AC and The main switch tube SW1 is composed. The controller arbitration result makes the main switch SW1 open, and realizes two functions of AC rectification and power factor correction; at this time, the main switch unit operates in the energy storage state of the power factor correction, and the current flow direction in the circuit is as shown by the dotted line in the figure. Shown Timing state 6: As shown in Fig. 7F, the multi-edge synchronous controller U1 operates in the T2 transient section of the effective switching period, which is called "positive Τ2 state,"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, and AC power supply. The AC and the main switch tube SW1 are composed; the power switch circuit is composed of the main switch tube SW1, the transducing transformer T and the auxiliary switch tube SW4. The controller arbitration result causes the auxiliary switch SW4 to be turned on when the main switch SW1 is turned on; the main switch continues to work. In the energy storage state of the power factor correction, not only the power factor correction function is realized, but also the current flow direction in the circuit is shown by the dotted line in the figure, and the initial power conversion state is started together with the auxiliary switch to realize the power conversion function. The direction of current flow is shown by the solid line in the figure. It can be seen that a beneficial and significant feature is that the switching loss of the power conversion switch process is reduced by half compared with the existing power conversion switch circuit because of the power conversion switch circuit. One of the switch tubes SW1 has been opened before the switch circuit is turned on;
时序态 7: 见图 7G， 多边沿同步控制器 Ul工作在有效开关周期的 T3时态 段， 称为 "正 T3态" ； 功率因素校正开关电路由二极管 D1 , 储能电感 L, 交 流电源 AC， 主开关管 SW2以及电容 C1组成； 功率转换开关电路由辅助开关管 SW3, 换能变压器 T, 以及主开关管 SW2组成。 控制器仲裁结果使得主开关 SW1 关断和辅助开关 SW4 ,在主开关同步后沿 503处同步地关断， 与此同时主开关 SW2和辅助开关 SW3， 也在辅开关同步前沿 504处同步地开通； 主开关工作在 功率因素校正的释能态， 不仅继续实现功率因素校正功能，其电流流动方向 如图中虚划线所示。 与此同时与辅助开关一起开始了第二次功率转换态，再 次实现功率转换功能， 其电流流动方向如图中实划线所示，从中再次可以看 出另一个有益的显著特点是此时的功率转换开关过程的开关导通损耗较之 现有的功率转换开关电路的开关导通损耗近乎减少到零，因为功率转换开关 电路流经开关管 SW1的电流与功率因素校正电路流经开关管 SW2的电流此时 正好相反而抵消；进一步的一个有益的显著特点是功率因素校正电路所释放 出的能量不是如现有的功率因素校正电路所为， 能量先转移到储能电容上， 而是直接转移到了功率转换开关电路中，因此极大地减轻了对储能电容的容 量要求； 间接地减小了本发明电源的成本和体积；  Timing state 7: As shown in Fig. 7G, the multi-edge synchronous controller U1 operates in the T3 state segment of the effective switching period, which is called "positive T3 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, AC power supply AC The main switch tube SW2 and the capacitor C1 are composed; the power conversion switch circuit is composed of an auxiliary switch tube SW3, a transducing transformer T, and a main switch tube SW2. The controller arbitration result causes the main switch SW1 to be turned off and the auxiliary switch SW4 to be turned off synchronously at 503 after the main switch is synchronized, while the main switch SW2 and the auxiliary switch SW3 are also turned on synchronously at the auxiliary switch synchronization leading edge 504. The main switch operates in the release state of the power factor correction, and not only continues to implement the power factor correction function, but also the current flow direction is shown by the dashed line in the figure. At the same time, the second power conversion state is started together with the auxiliary switch, and the power conversion function is realized again. The current flow direction is shown by the solid line in the figure, and another useful and remarkable feature can be seen from this time. The switch conduction loss of the power conversion switch process is reduced to zero compared to the switching conduction loss of the existing power conversion switch circuit, because the current and power factor correction circuit of the power conversion switch circuit flowing through the switch SW1 flows through the switch SW2 The current is reversed at the opposite end; another beneficial feature is that the energy released by the power factor correction circuit is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly Transferred to the power transfer switch circuit, thus greatly reducing the capacity requirements for the storage capacitor; the grounding reduces the cost and volume of the power supply of the present invention;
时序态 8: 见图 7H， 多边沿同步控制器 Ul工作在有效开关周期的 T4时态 段， 称为 "正 T4态" ； 功率因素校正开关电路由二极管 D1 , 储能电感 L, 交 流电源 AC, 换能变压器 T, 辅助开关管 SW4的二极管， 以及电容 C1组成。 控制 器仲裁结果使得主开关 SW2与辅助开关 SW3, 在辅开关同步后沿 505处同步地 关断，开关单元继续工作在功率因素校正的释能态， 其电流流动方向如图中 虛划线所示， 但功率转换态结束。 上述 4种运行态顺序重复， 直至交流电的 极性转变。 然后电路又从 "时序态 1 : " 往复开始。 Timing state 8: As shown in Fig. 7H, the multi-edge synchronous controller U1 operates in the T4 state segment of the effective switching period, which is called "positive T4 state"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, AC power supply AC , the transformer transformer T, the diode of the auxiliary switch tube SW4, and the capacitor C1. The controller arbitration result causes the main switch SW2 and the auxiliary switch SW3 to be turned off synchronously at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the energy-corrected release state, and the current flow direction is as shown in the figure. The dotted line is shown, but the power conversion state ends. The above four operating states are repeated in sequence until the polarity of the alternating current changes. Then the circuit starts again from "Time Series 1: ".
实施例 2  Example 2
如图 3A所示， 所述开关转换单元 301为单相半桥开关转换单元， 包括： 交流电源、 第 1和第 2二极管 Dl、 D2、 第 1和第 2电容 Cl、 C2 , 第 1和第 2主开关 SW1、 SW2、 储能电感 换能变压器 T1 ; 其中， As shown in FIG. 3A, the switch conversion unit 301 is a single-phase half-bridge switch conversion unit, including: an AC power supply, first and second diodes D1, D2, first and second capacitors Cl, C2, first and third 2 main switch SW1, SW2, energy storage inductor transducing transformer T1;
所述的第 1和第 2二极管 Dl、 D2串联， 所述的第 1和第 2主开关 SW1、 SW2 串联， 并在它们的串联中点之间接入储能电感 L和交流电源 AC, 由此组成升 压型开关电路， 从而获得高压直流电； The first and second diodes D1 and D2 are connected in series, and the first and second main switches SW1 and SW2 are connected in series, and an energy storage inductor L and an alternating current power source AC are connected between their midpoints of the series. Forming a step-up switching circuit to obtain high voltage direct current;
所述的第 1和第 2电容 Cl、 C2串联， 并在它的串联中点与所述的第 1和第 2 主开关 SW1、 SW2串联中点之间接入换能变压器 Tl , 由此组成半桥功率转换开 关电路， 以实现高压直流电的隔离传送。  The first and second capacitors C1 and C2 are connected in series, and a transducing transformer T1 is connected between the midpoint of the series connection and the midpoint of the first and second main switches SW1 and SW2, thereby forming a half. Bridge power transfer switch circuit to achieve isolated transmission of high voltage direct current.
所述的多边沿同步控制器同上， 如图 4、 5所示。  The multilateral edge synchronization controller is the same as above, as shown in FIGS.
其中， 所述多边沿同步控制器与交流电源 AC连接， 以获得交流电源的极 性变化信息。  The multilateral edge synchronization controller is connected to the AC power source AC to obtain polarity change information of the AC power source.
在图 3A所示的实施例中， 由多边沿同步控制器 U1实现对电路的 6种运行 时序态的驱动。 与实施例 1不同之处在于本实施例中的 "负 T1态" 和 "负 T2 态" 合为了一个时态段,在时序态 1内完成； "正 T1态" 和 "正 T2态" 亦合为 了一个时态段，在时序态 4内完成；如图 8A至 8F所示为图 3A的工作原理状态图。  In the embodiment shown in Fig. 3A, the driving of the six operational timing states of the circuit is effected by the multi-edge synchronization controller U1. The difference from Embodiment 1 is that the "negative T1 state" and the "negative T2 state" in this embodiment are combined into one temporal segment and completed in the timing state 1; the "positive T1 state" and the "positive T2 state" are also For a tense segment, it is completed in the timing state 4; as shown in FIGS. 8A to 8F, it is a working state diagram of FIG. 3A.
首先从交流电的极性呈现为右端为正， 左端为负的情形开始说明。 时序态 1 : 见图 8A, 多边沿同步控制器 U1工作在有效开关周期的 Π时态 段和 T2时态段； 功率因素校正开关电路由二极管 D2 , 储能电感 L， 交流电源 AC以及主开关 SW2组成； 功率转换开关电路由电容 C1 ,换能变压器 T以及主开 关 SW2组成。控制器仲裁结果使得主开关 SW2开通； 主开关除了工作在功率因 素校正的储能态， 不仅实现功率因素校正功能， 其电路中的电流流动方向如 图中点划线所示，同时开始了初次功率转换态， 实现功率转换功能， 其电流 流动方向如图中实划线所示；  First, the polarity of the alternating current is shown as positive at the right end and negative at the left end. Timing state 1: As shown in Figure 8A, the multi-edge synchronous controller U1 operates in the Π-phase segment and the T2-phase segment of the effective switching cycle; the power factor correction switching circuit consists of the diode D2, the energy storage inductor L, the AC power source AC, and the main switch. SW2 is composed; the power conversion switch circuit is composed of a capacitor C1, a transducing transformer T and a main switch SW2. The controller arbitration result makes the main switch SW2 open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function. The current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts. The power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
时序态 2：见图 B ,多边沿同步控制器 U1工作在有效开关周期的 T 3时态段， 称为 "负 T3态" ； 功率因素校正开关电路由二极管 D2 , 电感 L, 交流电源 AC, 主开关管 SW1 , 电容 C1以及电容 C2组成； 功率转换开关电路由主开关管 SW1， 换能变压器 T， 以及电容 C2组成。 控制器仲裁结果使得主开关 SW2 , 在主开关 同步后沿 503处同步关断， 与此同时主开关 SW1也在辅开关同步前沿 504处同 步地开通； 主开关工作在功率因素校正的释能态， 不仅继续实现功率因素校 正功能，其电流流动方向如图中虛划线所示。 与此同时开始了第二次功率转 换态， 再次实现功率转换功能， 其电流流动方向如图中实划线所示， 从中再 次可以看出一个有益的显著特点是功率因素校正电路所释放出的能量不是 如现有的功率因素校正电路所为， 能量先转移到储能电容上， 而是直接转移 到了功率转换开关电路中， 因此极大地减轻了对储能电容的容量要求； 间接 地減小了本发明电源的成本和体积； Timing State 2: See Figure B. The M3 operates along the synchronous controller U1 in the T 3 state phase of the effective switching period, called the "negative T3 state"; the power factor correction switching circuit consists of the diode D2, the inductor L, and the AC power source AC. The main switch tube SW1, the capacitor C1 and the capacitor C2 are composed; the power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T, and a capacitor C2. Controller arbitration results in the main switch SW2, in the main switch At the same time, the synchronous edge 503 is synchronously turned off, and at the same time, the main switch SW1 is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor corrected release state, and not only continues to implement the power factor correction function, but also its current flow The direction is shown by the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is shown by the solid line in the figure, and it can be seen again that a beneficial and remarkable feature is that the power factor correction circuit releases the The energy is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the present invention;
时序态 3: 见图 8C, 多边沿同步控制器 U1工作在有效开关周期的 T4时态 段， 称为 "负 T4态" ； 功率因素校正开关电路由二极管 D2 , 储能电感 L， 交 流电源 AC, 换能变压器 T， 电容 C2以及 C1组成。 控制器仲裁结果使得主开关 SW1在辅开关同步后沿 505处同步关断，开关单元继续工作在功率因素校正的 释能态， 其电流流动方向如图中虚划线所示， 但功率转换态结束。  Timing State 3: As shown in Figure 8C, the multi-edge synchronous controller U1 operates in the T4 transient phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit consists of the diode D2, the storage inductor L, and the AC power supply AC. , Transducer transformer T, capacitor C2 and C1. The controller arbitration result causes the main switch SW1 to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dotted line in the figure, but the power conversion state End.
上述 3种运行态顺序重复， 直至交流电的极性转变。 此时， 交流电的极 性呈现为右端为负， 左端为正。  The above three operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current appears to be negative at the right end and positive at the left end.
时序态 4: 见图 8D, 多边沿同步控制器 U1工作在有效开关周期的 T1时态 段和 Τ2时态段； 功率因素校正开关电路由二极管 D1 , 电感 L, 交流电源 AC以 及主开关管 SW1组成； 功率转换开关电路由主开关管 SW1， 换能变压器 T以及 电容 C2组成。控制器仲裁结果使得主开关 SW1开通;主开关除了工作在功率因 素校正的储能态， 不仅实现功率因素校正功能， 其电路中的电流流动方向如 图中点划线所示，同时开始了初次功率转换态， 实现功率转换功能， 其电流 流动方向如图中实划线所示；  Timing state 4: As shown in Fig. 8D, the multi-edge synchronous controller U1 operates in the T1 state segment and the Τ2 phase segment of the effective switching period; the power factor correction switching circuit is composed of the diode D1, the inductor L, the AC power source AC, and the main switch tube SW1. The power conversion switch circuit is composed of a main switch tube SW1, a transducing transformer T and a capacitor C2. The controller arbitration result makes the main switch SW1 open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function. The current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts. The power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
时序态 5: 见图 8E， 多边沿同步控制器 U1工作在有效开关周期的 T3时态 段， 称为 "正 T3态" ； 功率因素校正开关电路由二极管 D1 , 电感 L， 交流电 源 AC, 主开关管 SW2以及电容 C1组成； 功率转换开关电路由电容 C1 , 换能变 压器 T, 以及主开关管 SW2组成。 控制器仲裁结果使得主开关 SW1 , 在主开关 同步后沿 503处同步地关断， 与此同时主开关 SW2也在辅开关同步前沿 504处 同步地开通； 主开关工作在功率因素校正的释能态， 不仅继续实现功率因素 校正功能， 其电流流动方向如图中虛划线所示。与此同时开始了第二次功率 转换态， 再次实现功率转换功能， 其电流流动方向如图中实划线所示， 从中 再次可以看出另一个有益的显著特点是功率因素校正电路所释放出的能量 不是如现有的功率因素校正电路所为，将能量先转移到储能电容上' 而是直 接转移到了功率转换开关电路中， 因此极大地减轻了对储能电容的容量要 求； 间接地减小了本发明电源的成本和体积； Timing State 5: As shown in Figure 8E, the multi-edge synchronous controller U1 operates in the T3 transient phase of the effective switching period, called the "positive T3 state"; the power factor correction switching circuit consists of the diode D1, the inductor L, the AC power source AC, and the main The switch tube SW2 and the capacitor C1 are composed; the power conversion switch circuit is composed of a capacitor C1, a transducing transformer T, and a main switch tube SW2. The controller arbitration result causes the main switch SW1 to be synchronously turned off at the edge 503 after the main switch is synchronized, while the main switch SW2 is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor correction State, not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is as shown by the solid line in the figure. From this, it can be seen that another beneficial and remarkable feature is that the power factor correction circuit is released. energy of Rather than transferring the energy to the storage capacitor first, as in the existing power factor correction circuit, it is directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the present invention;
时序态 6: 见图 8F, 多边沿同步控制器 U1工作在有效开关周期的 T4时态 段， 称为 "正 T4态，， ； 功率因素校正开关电路由二极管 D1 , 储能电感 L, 交 流电源 AC, 换能变压器 T， 电容 C2， 以及电容 C1组成。 控制器仲裁结果使得 主开关 SW2在辅开关同步后沿 505处同步地关断，开关单元继续工作在功率因 素校正的释能态， 其电流流动方向如图中虚划线所示， 但功率转换态结束。  Timing state 6: As shown in Fig. 8F, the multi-edge synchronous controller U1 operates in the T4 state segment of the effective switching period, which is called "positive T4 state,"; the power factor correction switching circuit is composed of diode D1, energy storage inductor L, and AC power supply. The AC, the transducing transformer T, the capacitor C2, and the capacitor C1 are composed. The controller arbitration result causes the main switch SW2 to be synchronously turned off at the 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state. The current flow direction is shown by the dashed line in the figure, but the power conversion state ends.
上述 3种运行态顺序重复， 直至交流电的极性转变。 然后电路又从 "时 序态 1: " 往复开始。  The above three operating states are repeated in sequence until the polarity of the alternating current changes. Then the circuit starts again from "Time 1:".
实施例 3  Example 3
如图 3B所示， 所述开关转换单元 305为三相半桥转换开关单元， 包括： 第 1、 第 2和第 3交流电源 Aca、 Acb、 ACc, 第 1、 第 2和第 3电感 La、 Lb、 Lc、 第 1、 第 2和第 3换能变压器 Tla、 T2a、 T3a、 第 1和第 2电容 Cl、 C2、 第 1和第 2 主开关 SWla、 SW2a、第 3和第 4主开关 SWlb、 SW2b、第 5和第 6主开关 SWlc、 SW2c;其中， 所述的第 1交流电源 ACa与第 1电感 La串联之后，与第 1和第 2主开关 SWla、 SW2a串联中点相连，由此组成升压型开关电路,从而获得第 1相的高压直流电； 所述的第 2交流电源 ACb与第 2电感 Lb串联之后，与第 3和第 4主开关 SWlb、 SW2b串联中点相连，由此组成升压型开关电路,从而获得第 2相的高压直流电； 所述的第 3交流电源 ACc与第 3电感 Lc串联之后，与第 5和第 6主开关 SWlc、 As shown in FIG. 3B, the switch conversion unit 305 is a three-phase half-bridge transfer switch unit, including: first, second, and third AC power sources Aca, Acb, ACc, first, second, and third inductors La, Lb, Lc, first, second and third transducing transformers Tla, T2a, T3a, first and second capacitors Cl, C2, first and second main switches SWla, SW2a, third and fourth main switches SWlb And the SW2b, the fifth and sixth main switches SWlc and SW2c, wherein the first AC power source ACa is connected in series with the first inductor La, and is connected to the first and second main switches SW1a and SW2a in series at a midpoint. Forming a step-up switching circuit to obtain a high-voltage direct current of the first phase; after the second alternating current power source ACb is connected in series with the second inductor Lb, the third and fourth main switches SW1b and SW2b are connected in series at a midpoint, thereby Forming a step-up switching circuit to obtain a high-voltage direct current of the second phase; after the third alternating current power source ACc is connected in series with the third inductor Lc, and the fifth and sixth main switches SWlc,
SW2c串联中点相连，由此组成升压型开关电路，从而获得第 3相的高压直流电； 所述的第 1和第 2电容 Cl、 C2串联，并在它的串联中点与所述的第 1和第 2 主开关装 SWla、 SW2a串联中点之间接入换能变压器 Tla, 由此组成半桥功率 转换开关电路， 以实现第 1相的高压直流电的隔离传送； The SW2c is connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining a high-voltage direct current of the third phase; the first and second capacitors C1 and C2 are connected in series, and at the midpoint of the series thereof 1 and the second main switch device SWla, SW2a are connected to the transducer transformer Tla between the midpoints of the series, thereby forming a half-bridge power conversion switch circuit to realize the isolated transmission of the high-voltage direct current of the first phase;
所述的第 1和第 2电容 Cl、 C2串联，并在它的串联中点与所述的第 3和第 4 主开关 SWlb、 SW2b串联中点之间接入换能变压器 Tib, 由此组成半桥功率转 换开关电路， 以实现第 2相的高压直流电的隔离传送；  The first and second capacitors C1, C2 are connected in series, and the transducing transformer Tib is connected between the midpoint of the series connection of the third and fourth main switches SW1b, SW2b, thereby forming a half a bridge power transfer switch circuit for achieving isolated transmission of the high voltage direct current of the second phase;
所述的第 1和第 2电容 Cl、 C2串联， 并在它的串联中点与所述的第 5和第 6 主开关 SWlc、 SW2c串联中点之间接入换能变压器 Tlc， 由此组成半桥功率转 换开关电路， 以实现第 3相的高压直流电的隔离传送。  The first and second capacitors C1, C2 are connected in series, and the transducing transformer Tlc is connected between the midpoint of the series and the midpoint of the fifth and sixth main switches SWlc, SW2c in series, thereby forming a half The bridge power transfer switch circuit is used to realize the isolated transmission of the high voltage direct current of the third phase.
所述多边沿同步控制器 307如图 4、 图 5所示。 所述多边沿同步控制器 307与交流电源 Aca、 Acb、 Acc连接， 以获得交流电源极性和相位的变化信息。 在图 3B所示的实施例中，由多边沿同步控制器 U1实现对电路的 12种运行 时序态的驱动。 由于三相电源的各相对称性， 这里仅对 A相电源加以叙述， 以避免大量的重复文字。 The polygon edge synchronization controller 307 is as shown in FIGS. 4 and 5. Multi-edge synchronization controller The 307 is connected to the AC power sources Aca, Acb, and Acc to obtain information on changes in polarity and phase of the AC power source. In the embodiment shown in FIG. 3B, the driving of the 12 operational timing states of the circuit is effected by the polygon edge synchronization controller U1. Due to the relative symmetry of the three-phase power supply, only the A-phase power supply is described here to avoid a large amount of repeated text.
由于半桥结构的同构性， 本实施例与实施例 2相同之处在于 "负 态" 和 "负 T2态，， 合为了一个时态段，在时序态 1内完成； "正 T1态" 和 "正 Π 态" 亦合为了一个时态段，在时序态 4内完成； 如图 9A至 9F所示。  Due to the isomorphism of the half-bridge structure, the present embodiment is identical to the second embodiment in the "negative state" and the "negative T2 state", which are combined into a temporal state and completed in the timing state 1; "positive T1 state" And the "positive state" also coincides with a tense segment, which is completed in the timing state 4; as shown in Figs. 9A to 9F.
首先从交流电 ACa的极性呈现为右端为正， 左端为负的情形开始说明。 时序态 1: 见图 9A, 多边沿同步控制器 U1工作在有效开关周期的 T1时态 段和 T2时态段； 功率因素校正开关电路由二极管 D2b, D2c, 电感 La, A相交流 电源 ACa以及主开关 SW2a組成； 功率转换开关电路由电容 CI , A相换能变压器 Tla以及主开关 SW2a组成。 控制器仲裁结果使得主开关 SW2a开通； 主开关除 了工作在功率因素校正的储能态， 不仅实现功率因素校正功能， 其电路中的 电流流动方向如图中点划线所示，同时开始了初次功率转换态， 实现功率转 换功能， 其电流流动方向如图中实划线所示；  First, the polarity of the alternating current ACa is shown as positive for the right end and negative for the left end. Timing state 1: As shown in Fig. 9A, the multi-edge synchronous controller U1 operates in the T1 state segment and the T2 transient segment of the effective switching period; the power factor correction switching circuit is composed of diodes D2b, D2c, inductor La, phase A AC power source ACa and The main switch SW2a is composed of; the power conversion switch circuit is composed of a capacitor CI, an A-phase transducing transformer Tla and a main switch SW2a. The controller arbitration result makes the main switch SW2a open; the main switch not only realizes the power factor correction energy storage state, but also realizes the power factor correction function. The current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts. The power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
时序态 2: 见图 9B， 多边沿同步控制器 ϋΐ工作在有效开关周期的 T3时态 段，称为 "负 Τ3态" ； 功率因素校正开关电路由二极管 D2b, D2c， 电感 La , A 相交流电源 ACa, 主开关 SWla , 电容 C1以及 C2组成； 功率转换开关电路由主 开关 SWla, A相交流电源 Tla， 以及电容 C2组成。 控制器仲裁结果使得主开关 SW2a, 在主开关同步后沿 503处同步关断， 与此同时主开关 SWla也在辅开关 同步前沿 504处同步地开通； 主开关工作在功率因素校正的释能态， 不仅继 续实现功率因素校正功能，其电流流动方向如图中虚划线所示。 与此同时开 始了第二次功率转换态，再次实现功率转换功能，其电流流动方向如图中实 划线所示，从中再次可以看出一个有益的显著特点是功率因素校正电路所释 放出的能量不是如现有的功率因素校正电路所为， 能量先转移到储能电容 上， 而是直接转移到了功率转换开关电路中， 因此极大地减轻了对储能电容 的容量要求； 间接地减小了本发明电源的成本和体积；  Timing State 2: See Figure 9B, the multi-edge synchronous controller ϋΐ operates in the T3 transient phase of the effective switching period, called the “negative Τ3 state”; the power factor correction switching circuit is diode-D2b, D2c, inductor La, A-phase AC The power supply ACa, the main switch SW1a, the capacitors C1 and C2 are composed; the power conversion switch circuit is composed of a main switch SWla, an A-phase AC power source Tla, and a capacitor C2. The controller arbitration result causes the main switch SW2a to be synchronously turned off at the edge 503 after the main switch is synchronized, and at the same time the main switch SW1a is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor corrected release state , not only continue to achieve the power factor correction function, its current flow direction is shown in the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is shown by the solid line in the figure, and it can be seen again that a beneficial and remarkable feature is the power factor correction circuit. The energy is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the present invention;
时序态 3: 见图 9C, 多边沿同步控制器 U1工作在有效开关周期的 T4时态 段， 称为 "负 T4态" ； 功率因素校正开关电路由二极管 D2b，D2c, 电感 La , A 相交流电源 ACa , A相换能变压器 Tla， 电容 C2以及 C1组成。 控制器仲裁结果 使得主开关 SWla在辅开关同步后沿 505处同步关断， 开关单元继续工作在功 率因素校正的释能态，其电流流动方向如图中虚划线所示，但功率转换态结束。 上述 3种运行态顺序重复， 直至交流电的极性转变。 此时， 交流电 ACa 的极性呈现为右端为负， 左端为正。 Timing State 3: As shown in Figure 9C, the multi-edge synchronous controller U1 operates in the T4 transient phase of the effective switching period, called the "negative T4 state"; the power factor correction switching circuit is diode-D2b, D2c, inductive La, A-phase AC Power supply ACa, A-phase converter transformer Tla, capacitor C2 and C1. The controller arbitration result causes the main switch SWla to be synchronously turned off at 505 after the auxiliary switch is synchronized, and the switching unit continues to work in the work. The rate-corrected release state, the current flow direction is shown by the dotted line in the figure, but the power conversion state ends. The above three operating states are repeated in sequence until the polarity of the alternating current changes. At this time, the polarity of the alternating current ACa appears to be negative at the right end and positive at the left end.
时序态 4: 见图 9D, 多边沿同步控制器 U1工作在有效开关周期的 ΊΊ时态 段和 T2时态段； 功率因素校正开关电路由二极管 Dlb, Die, 电感 La, A相交流 电源 ACa以及主开关 SWla组成； 功率转换开关电路由主开关 SWla, A相换能变 压器 Tla以及电容 C2组成。控制器仲裁结果使得主开关 SWla开通；主开关除了 工作在功率因素校正的储能态， 不仅实现功率因素校正功能，其电路中的电 流流动方向如图中点划线所示，同时开始了初次功率转换态， 实现功率转换 功能， 其电流流动方向如图中实划线所示；  Timing state 4: As shown in Fig. 9D, the multi-edge synchronous controller U1 operates in the ΊΊ-phase segment and the T2-phase segment of the effective switching cycle; the power factor correction switching circuit is composed of a diode Dlb, Die, an inductor La, an A-phase AC power source ACa, and The main switch SWla is composed of; the power conversion switch circuit is composed of a main switch SWla, an A-phase transducing transformer Tla and a capacitor C2. The controller arbitration result makes the main switch SWla open; the main switch not only operates in the energy storage state of the power factor correction, but also realizes the power factor correction function. The current flow direction in the circuit is as shown by the dotted line in the figure, and the first time starts. The power conversion state realizes the power conversion function, and the current flow direction thereof is shown by a solid line in the figure;
时序态 5: 见图 9E, 多边沿同步控制器 U1工作在有效开关周期的 T3时态 段，称为 "正 T3态" ； 功率因素校正开关电路由二极管 Dlb，Dlc， 电感 La, A 相交流电源 ACa，主开关 SW2a以及电容 C1組成； 功率转换开关电路由电容 C1 , A相换能变压器 Tla以及主开关 SW2a组成。 控制器仲裁结果使得主开关 SWla, 在主开关同步后沿 503处同步地关断， 与此同时主开关 SW2a也在辅开关同步 前沿 504处同步地开通； 主开关工作在功率因素校正的释能态， 不仅继续实 现功率因素校正功能，其电流流动方向如图中虛划线所示。与此同时开始了 第二次功率转换态，再次实现功率转换功能， 其电流流动方向如图中实划线 所示，从中再次可以看出另一个有益的显著特点是功率因素校正电路所释放 出的能量不是如现有的功率因素校正电路所为， 能量先转移到储能电容上， 而是直接转移到了功率转换开关电路中，因此极大地减轻了对储能电容的容 量要求； 间接地减小了本发明电源的成本和体积；  Timing State 5: As shown in Figure 9E, the multi-edge synchronous controller U1 operates in the T3 transient phase of the effective switching period, called the "positive T3 state"; the power factor correction switching circuit is diode-connected by the diodes Dlb, Dlc, the inductor La, A. The power supply ACa, the main switch SW2a and the capacitor C1 are composed; the power conversion switch circuit is composed of a capacitor C1, an A-phase transducing transformer Tla and a main switch SW2a. The controller arbitration result causes the main switch SW1a to be synchronously turned off at the edge 503 after the main switch is synchronized, while the main switch SW2a is also turned on synchronously at the auxiliary switch synchronization leading edge 504; the main switch operates in the power factor correction State, not only continue to achieve power factor correction function, its current flow direction is shown in the dotted line in the figure. At the same time, the second power conversion state is started, and the power conversion function is realized again. The current flow direction is as shown by the solid line in the figure. From this, it can be seen that another beneficial and remarkable feature is that the power factor correction circuit releases. The energy is not the same as the existing power factor correction circuit. The energy is first transferred to the storage capacitor, but directly transferred to the power conversion switch circuit, thus greatly reducing the capacity requirement for the storage capacitor; The cost and volume of the power supply of the invention are reduced;
时序态 6: 见图 9F, 多边沿同步控制器 U1工作在有效开关周期的 T4时态 段， 称为 "正 T4态" ； 功率因素校正开关电路由二极管 Dlb, Die, 电感 La, A 相交流电源 ACa， A相换能变压器 Tla, 电容 C2以及 CI组成。 控制器仲裁结果 使得主开关 SW2a在辅开关同步后沿 505处同步地关断， 开关单元继续工作在 功率因素校正的释能态，其电流流动方向如图中虚划线所示，但功率转换态结束。  Timing State 6: As shown in Figure 9F, the multi-edge synchronous controller U1 operates in the T4 transient phase of the active switching period, called the "positive T4 state"; the power factor correction switching circuit is diode-connected by the diodes Dlb, Die, the inductor La, A. Power supply ACa, A-phase converter transformer Tla, capacitor C2 and CI. The controller arbitration result causes the main switch SW2a to be synchronously turned off at the 505 after the auxiliary switch is synchronized, and the switching unit continues to operate in the power factor corrected release state, and the current flow direction is as shown by the dotted line in the figure, but the power conversion The state ends.
上述 3种运行态顺序重复， 直至交流电的极性转变。 然后电路又从 "时 序态 1 : " 往复开始。  The above three operating states are repeated in sequence until the polarity of the alternating current changes. Then the circuit starts again from "Time Sequence 1: ".
上述实施例中， 所述的主开关、辅助开关可为场效应晶体管或双极晶体 管或绝缘栅默极晶体管或可控的双向电子开关。  In the above embodiment, the main switch and the auxiliary switch may be a field effect transistor or a bipolar transistor or an insulated gate micro transistor or a controllable bidirectional electronic switch.
以上具体实施方式仅用于说明本发明，而非用于限定本发明。  The above specific embodiments are merely illustrative of the invention and are not intended to limit the invention.

Claims

权 利 要 求 书 Claim
1. 一种多边沿同步开关电源， 其特征在于， 包括：  A multi-edge synchronous switching power supply, comprising:
开关转换单元，用于将交流电转变为高压直流电、将所述高压直流电转 变为高压交流电；  a switching conversion unit for converting alternating current into high voltage direct current, converting the high voltage direct current into high voltage alternating current;
直流输出单元， 用于将所述高压交流电整流后输出；  a DC output unit, configured to rectify the high voltage alternating current and output the same;
多边沿同步控制器，与所述开关转换单元和直流输出单元连接，检测该 开关电源的工作状态，根据所述工作状态生成有效开关周期内的时态段， 并 产生脉宽可控的及其边沿同步时机可控的调制脉冲信号，用以控制所述开关 转换单元的工作。  a multilateral edge synchronization controller, connected to the switch conversion unit and the DC output unit, detecting an operating state of the switching power supply, generating a temporal segment within an effective switching cycle according to the working state, and generating a pulse width controllable The edge synchronization timing controllable modulation pulse signal is used to control the operation of the switching unit.
2. 根据权利要求 1所述的多边沿同步开关电源， 其特征在于， 所述开关 转换单元 （201 ) 包括： 交流电源、 第 1和第 2单向电子装置、 一储能电感、 一换能变压器、一电容、第 1和第 2主开关装置、第 1和第 2辅助开关装置；其中， 所述的第 1和第 2单向电子装置串联， 所述的第 1和第 2主开关装置串联， 并在它们的串联中点之间接入储能电感和交流电源，由此组成升压型开关电 路， 从而获得高压直流电；  2. The multi-edge synchronous switching power supply according to claim 1, wherein the switching conversion unit (201) comprises: an alternating current power source, first and second unidirectional electronic devices, an energy storage inductor, and a transducing a transformer, a capacitor, first and second main switching devices, first and second auxiliary switching devices; wherein said first and second unidirectional electronic devices are connected in series, said first and second main switching devices Connecting in series, and connecting the energy storage inductor and the alternating current power source between their series midpoints, thereby forming a step-up switching circuit, thereby obtaining high voltage direct current;
所述的第 1和第 2辅助开关装置串联， 并在它的串联中点与所述的第 1和 第 2主开关装置串联中点之间接入换能变压器， 由此组成全桥功率转换开关 电路， 以实现高压直流电的隔离传送；  The first and second auxiliary switching devices are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the first and second main switching devices in series, thereby forming a full bridge power transfer switch. a circuit to achieve isolated transmission of high voltage direct current;
其中， 所述交流电源与所述多边沿同步控制器（ 203 )连接， 使得该多 边沿同步控制器的工作状态同步于交流电源的极性变化。  The AC power source is coupled to the polygon edge synchronization controller (203) such that the operating state of the multi-edge synchronization controller is synchronized with the polarity change of the AC power source.
3.根据权利要求 1所述的多边沿同步开关电源， 其特征在于， 所述开关 转换单元 （301 ) 为单相半桥开关转换单元， 包括： 交流电源、 第 1和第 2单 向电子装置、第 1和第 2电容、第 1和第 2主开关装置、储能电感、换能变压器； 其中， 所述的第 1和第 2单向电子装置串联， 所述的第 1和第 2主开关装置串联， 并在它们的串联中点之间接入储能电感和交流电源，由此组成升压型开关电 路， 从而获得高压直流电；  The multi-edge synchronous switching power supply according to claim 1, wherein the switching conversion unit (301) is a single-phase half-bridge switching conversion unit, comprising: an alternating current power supply, first and second unidirectional electronic devices The first and second capacitors, the first and second main switching devices, the energy storage inductor, and the transducing transformer; wherein the first and second unidirectional electronic devices are connected in series, and the first and second mains are The switching devices are connected in series, and an energy storage inductor and an alternating current power source are connected between their midpoints of the series, thereby forming a step-up switching circuit, thereby obtaining high voltage direct current;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 1^第 2主开关 装置串联中点之间接入换能变压器， 由此组成半桥功率转换开关电路， 以实 现高压直流电的隔离传送；  The first and second capacitors are connected in series, and a transducing transformer is connected between the midpoint of the series and the midpoint of the first and second main switching devices in series, thereby forming a half bridge power conversion switch circuit. To achieve isolated transmission of high voltage direct current;
- 所述交流电源与所述多边沿同步控制器（ 303 )连接， 使得该多边沿同 步控制器的工作状态同步于交流电源的极性变化。 - the AC power source is connected to the multilateral edge synchronization controller (303) such that the multilateral The operating state of the step controller is synchronized with the polarity change of the AC power source.
4.根据权利要求 1所述的多边沿同步开关电源， 其特征在于， 所述开关 转换单元（ 305 )为三相半桥转换开关单元， 包括： 第 1、第 2和第 3交流电源， 第 1、 笫 2和第 3储能电感、 第 1、 笫 2和第 3换能变压器、 第 1和第 2电容、 第 1 和第 2主开关装置、 第 3和第 4主开关装置、 第 5和第 6主开关装置;其中， 所述的第 1交流电源与第 1储能电感串联之后，与第 1和第 2主开关装置串 联中点相连， 由此組成升压型开关电路， 从而获得笫 1相的高压直流电； 所述的第 2交流电源与第 2储能电感串联之后，与第 3和第 4主开关装置串 联中点相连， 由此组成升压型开关电路， 从而获得第 2相的高压直流电； 所述的第 3交流电源与第 3储能电感串联之后，与第 5和第 6主开关装置串 联中点相连， 由此组成升压型开关电路， 从而获得第 3相的高压直流电； 所述的第 1和第 2电容串联，并在它的串联中点与所述的第 1和第 2主开关 装置串联中点之间接入第 1换能变压器， 由此组成半桥功率转换开关电路， 以实现第 1相的高压直流电的隔离传送； The multi-edge synchronous switching power supply according to claim 1, wherein the switching conversion unit (305) is a three-phase half-bridge switching unit, comprising: first, second, and third alternating current power sources, 1. 笫2 and 3rd energy storage inductors, 1st, 2nd and 3rd transducing transformers, 1st and 2nd capacitors, 1st and 2nd main switchgear, 3rd and 4th main switchgear, 5th And a sixth main switching device; wherein the first alternating current power source and the first energy storage inductor are connected in series, and then connected to the midpoint of the first and second main switching devices in series, thereby forming a step-up switching circuit, thereby obtaining高压1 phase high voltage direct current; after the second alternating current power source and the second energy storage inductor are connected in series, the third and fourth main switching devices are connected in series at a midpoint, thereby forming a step-up switching circuit, thereby obtaining the second The high-voltage direct current of the phase; the third alternating current power source is connected in series with the third energy storage inductor, and is connected to the midpoint of the fifth and sixth main switching devices in series, thereby forming a step-up switching circuit, thereby obtaining the third phase High voltage direct current; said first and second capacitors are connected in series and in its string Connecting a first transducing transformer between the midpoint and the midpoint of the first and second main switching devices, thereby forming a half bridge power transfer switch circuit to realize isolated transmission of the high voltage direct current of the first phase;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 3和第 4主开关 装置串联中点之间接入第二换能变压器， 由此組成半桥功率转换开关电路， 以实现第 2相的高压直流电的隔离传送；  The first and second capacitors are connected in series, and a second transducing transformer is connected between the midpoint of the series and the midpoint of the series connection of the third and fourth main switching devices, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the second phase;
所述的第 1和第 2电容串联，并在它的串联中点与所述的第 5和第 6主开关 装置串联中点之间接入第 3换能变压器， 由此组成半桥功率转换开关电路， 以实现第 3相的高压直流电的隔离传送；  The first and second capacitors are connected in series, and a third transducing transformer is connected between the midpoint of the series and the midpoint of the fifth and sixth main switching devices in series, thereby forming a half bridge power transfer switch. a circuit to achieve isolated transmission of the high voltage direct current of the third phase;
所述第 1、 第 2和第 3交流电源与所述多边沿同步控制器（ 307 )连接， 使 得该多边沿控制器的工作状态同步于交流电源的极性和相位变化。  The first, second, and third alternating current power sources are coupled to the multilateral edge synchronization controller (307) such that the operating state of the multilateral edge controller is synchronized with the polarity and phase change of the alternating current power source.
5. 根据权利要求 1所述的多边沿同步开关电源， 其特征在于， 所述多 边沿同步控制器包括： 交流极性检测单元（401 )、 过负载检测单元（ 402 )、 功率因素检测单元（403 )、 直流输出反馈检测单元（ 404 )、 多边沿同步时序 产生器单元（ 405 )和交流极性同步开关和驱动信号合成、 映射单元（ 406 ); 其中，交流极性检测单元（401 ),用于提供交流电源的大小和极性变化信息； 过负载检测单元（ 402 )， 用于提供电源承载能力的保护；  The multi-edge synchronous switching power supply according to claim 1, wherein the multilateral edge synchronization controller comprises: an alternating current polarity detecting unit (401), an overload detecting unit (402), and a power factor detecting unit ( 403), a DC output feedback detecting unit (404), a polygon edge synchronization timing generator unit (405), and an AC polarity synchronization switch and a driving signal synthesis, mapping unit (406); wherein, an alternating current polarity detecting unit (401), Used to provide information on the size and polarity of the AC power source; an overload detection unit (402) for providing protection of the power carrying capacity;
功率因素检测单元（ 403 ), 用于提供电源功率因素校正盾量的反馈； 直流输出反馈检测单元（ 404 ), 用于提供负载电源的闭环反馈； 多边沿同步时序产生器单元（405 ), 与所述交流极性检测单元（401 )、 过负载检测单元（ 402 )、 功率因素检测单元（403 )、 直流输出反馈检测单元 ( 404 )连接，并且接收它们的信号，生成有效开关周期内的四个时态段（ 506 ); 交流极性同步开关和驱动信号合成、 映射单元（ 406 )， 用于并列接收所 述多边沿同步时序产生器单元及交流极性检测单元（401)、 过负载检测单元 ( 402 ) 的信号， 以其作为输入信号， 产生主开关和辅助开关工作所需的脉 宽可控的及其边沿同步时机可控的调制脉冲信号。 a power factor detecting unit (403) for providing feedback of a power factor correction shield; a DC output feedback detecting unit (404) for providing closed loop feedback of the load power source; a multi-edge edge synchronization timing generator unit (40 5 ) connected to the alternating current polarity detecting unit (401), the overload detecting unit (402), the power factor detecting unit (40 3 ), and the DC output feedback detecting unit (404) And receiving their signals, generating four temporal segments (506) within the active switching period; an alternating polarity synchronous switch and driving signal synthesis, mapping unit (406) for juxtaposing the multilateral edge synchronization timing generator The signal of the unit and the AC polarity detecting unit (401) and the overload detecting unit (402) is used as an input signal to generate a pulse width controllable for the operation of the main switch and the auxiliary switch, and the edge synchronization timing is controllable. Modulate the pulse signal.
6.根据权利要求 5所述的多边沿同步开关电源， 其特征在于， 所述的多 边沿时序产生器单元包括： 有效开关周期内的主开关时序 （501 )和有效开 关周期内的辅助开关时序（ 502 ), 主开关同步后沿（ 503 )， 辅开关同步前沿 ( 504 ), 以及辅开关同步后沿 （ 505 )。  The multilateral edge-synchronous switching power supply according to claim 5, wherein the polygon edge timing generator unit comprises: a main switching timing (501) in an effective switching period and an auxiliary switching timing in an effective switching period. ( 502 ), the main switch sync trailing edge ( 503 ), the auxiliary switch sync leading edge ( 504 ), and the auxiliary switch sync trailing edge ( 505 ).
7.根据权利要求 5所述的多边沿同步开关电源，其特征在于， 所述的有 效开关周期的四个时态段（ 506 ), 包括：  The multi-edge synchronous switching power supply according to claim 5, wherein the four time segments (506) of the effective switching period include:
主开关工作时态段， 用于功率因素校正电路的储能；  The main switch operating time segment is used for energy storage of the power factor correction circuit;
辅助开关工作时态段， 用于功率开关电路的笫一次能量转换， 同时继续 功率因素校正电路的储能态；  The auxiliary switch working transient section is used for the primary energy conversion of the power switching circuit while continuing the energy storage state of the power factor correction circuit;
主开关与辅助开关通断工作同步换态的时态段，用于功率开关电路的第 二次能量转换， 同时功率因素校正电路转换为释能态；  The time switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the second energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
主开关、 辅助开关全部关断的时态段， 使得能量转换得以控制。  The state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
8. 根据权利要求 2或 3所述的多边沿同步开关电源， 其特征在于， 所述 的第 1和第 2单向电子装置为二极管。  The multi-edge synchronous switching power supply according to claim 2 or 3, wherein the first and second unidirectional electronic devices are diodes.
9.根据权利要求 2所述的多边沿同步开关电源， 其特征在于， 所述第 1、 第 2主开关装置、 第 1、 第 2辅助开关装置为场效应晶体管或汉极晶体管或绝 缘栅双极晶体管或可控的双向电子开关。  The multi-edge synchronous switching power supply according to claim 2, wherein the first and second main switching devices, the first and second auxiliary switching devices are field effect transistors or Hanji transistors or insulated gates A pole transistor or a controllable bidirectional electronic switch.
10.根据权利要求 3所述的多边沿同步开关电源，其特征在于， 所述第 1、 第 2主开关装置为场效应晶体管或欢极晶体管或绝缘栅双极晶体管或可控的 双向电子开关。  The multi-edge synchronous switching power supply according to claim 3, wherein the first and second main switching devices are field effect transistors or singular or insulated gate bipolar transistors or controllable bidirectional electronic switches. .
11.根据权利要求 4所述的多边沿同步开关电源， 其特征在于， 所述第 1、 第 2、 第 3、 第 4、 第 5和第 6主开关装置为场效应晶体管或双极晶体管或绝缘 栅双极晶体管或可控的双向电子开关。 The multilateral edge-synchronous switching power supply according to claim 4, wherein the first, second, third, fourth, fifth, and sixth main switching devices are field effect transistors or bipolar transistors or Insulated gate bipolar transistor or controllable bidirectional electronic switch.
12.—种多边沿同步控制器， 其特征在于， 所述多边沿同步控制器用于 检测开关电源的工作状态， 才 据所述工作状态生成有效开关周期内的时态 段， 并产生脉宽可控的及其边沿同步时机可控的调制脉冲信号， 用以控制开 关电源中开关转换单元的工作，该多边沿同步控制器包括： 交流极性检测单 元（401 )、 过负载检测单元（402 )、 功率因素检测单元（403 )、 直流输出反 馈检测单元 （ 404 )、 多边沿同步时序产生器单元（ 405 )和交流极性同步开 关和驱动信号合成、 映射单元（ 406 ); 其中， 12. A multi-edge edge synchronization controller, wherein the polygon edge synchronization controller is configured to detect an operating state of the switching power supply, and generate a temporal segment within the effective switching period according to the working state, and generate a pulse width. The control and its edge synchronization timing controllable modulation pulse signal is used to control the operation of the switching unit in the switching power supply. The multilateral edge synchronization controller includes: an AC polarity detecting unit (401) and an overload detecting unit ( 40 ) 2), the power factor detection means (403), detecting a DC output feedback means (404), multiple edge sync timing generating unit (405) and a synchronous switch and a driving AC polarity signal synthesis, mapping unit (406); wherein
交流极性检测单元（401 ), 用于提供交流电源的大小和极性变化信息； 过负载检测单元（ 402 )， 用于提供电源承载能力的保护；  An AC polarity detecting unit (401) for providing information on size and polarity change of the AC power source; and an overload detecting unit (402) for providing protection of the power carrying capacity;
功率因素检测单元（ 403 ), 用于提供电源功率因素校正质量的反馈； 直流输出反馈检测单元（ 404 ), 用于提供负载电源的闭环反馈； 多边沿同步时序产生器单元（ 405 )， 与所述交流极性检测单元（401 )、 过负载检测单元（ 402 )、 功率因素检测单元（ 403 )、 直流输出反馈检测单元 ( 404 )连接，并且接收它们的信号，生成有效开关周期内的四个时态段（ 506 ); 交流极性同步开关和驱动信号合成、 映射单元（ 406 )， 用于并列接收所 述多边沿同步时序产生器单元及交流极性检测单元（401)、 过负载检测单元 ( 402 ) 的信号， 以其作为输入信号， 产生主开关和辅助开关工作所需的脉 宽可控的及其边沿同步时机可控的调制脉沖信号。  a power factor detecting unit (403) for providing feedback of power quality factor correction quality; a DC output feedback detecting unit (404) for providing closed-loop feedback of the load power source; a polygon edge synchronization timing generator unit (405), and The AC polarity detecting unit (401), the overload detecting unit (402), the power factor detecting unit (403), and the DC output feedback detecting unit (404) are connected, and receive signals thereof to generate four in an effective switching period. a temporal phase segment (506); an AC polarity synchronization switch and a driving signal synthesis, mapping unit (406) for juxtaposing the polygon edge synchronization timing generator unit and the AC polarity detecting unit (401) and the overload detecting unit The signal of (402), which is used as an input signal, produces a pulse width controllable for the operation of the main switch and the auxiliary switch, and a modulated pulse signal controllable at the edge synchronization timing.
13.根据权利要求 12所述的多边沿同步控制器，其特征在于， 所述的多 边沿时序产生器单元包括： 有效开关周期内的主开关时序 （501 )和有效开 关周期内的辅助开关时序（ 502 )， 主开关同步后沿（ 503 ), 辅开关同步前沿 ( 504 ), 以及辅开关同步后沿 （ 505 )。  The multilateral edge synchronization controller according to claim 12, wherein the polygon edge timing generator unit comprises: a main switching timing (501) in an effective switching period and an auxiliary switching timing in an effective switching period. ( 502 ), the main switch sync trailing edge ( 503 ), the auxiliary switch sync leading edge ( 504 ), and the auxiliary switch sync trailing edge ( 505 ).
14.根据权利要求 12所述的多边沿同步控制器，其特征在于，所述的有 效开关周期的四个时态段（ 506 ), 包括：  The multi-edge edge synchronization controller according to claim 12, wherein the four time segments (506) of the effective switching period comprise:
主开关工作时态段， 用于功率因素校正电路的储能；  The main switch operating time segment is used for energy storage of the power factor correction circuit;
辅助开关工作时态段， 用于功率开关电路的第一次能量转换， 同时继续 功率因素校正电路的储能态；  The auxiliary switch working state segment is used for the first energy conversion of the power switch circuit while continuing the energy storage state of the power factor correction circuit;
主开关与辅助开关通断工作同步换态的时态段，用于功率开关电路的第 二次能量转换， 同时功率因素校正电路转换为释能态；  The time switch segment of the main switch and the auxiliary switch are synchronously switched, and are used for the second energy conversion of the power switch circuit, and the power factor correction circuit is converted into the release state;
主开关、 辅助开关全部关断的时态段， 使得能量转换得以控制。  The state of the main switch and the auxiliary switch are all turned off, so that the energy conversion is controlled.
PCT/CN2005/001789 2005-10-28 2005-10-28 A multi-edge synchronous switching power supply and its controller WO2007048277A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2005800055906A CN1922781B (en) 2005-10-28 2005-10-28 Multi-fringe synchronous switch power supply and its control device
PCT/CN2005/001789 WO2007048277A1 (en) 2005-10-28 2005-10-28 A multi-edge synchronous switching power supply and its controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/001789 WO2007048277A1 (en) 2005-10-28 2005-10-28 A multi-edge synchronous switching power supply and its controller

Publications (1)

Publication Number Publication Date
WO2007048277A1 true WO2007048277A1 (en) 2007-05-03

Family

ID=37779373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001789 WO2007048277A1 (en) 2005-10-28 2005-10-28 A multi-edge synchronous switching power supply and its controller

Country Status (2)

Country Link
CN (1) CN1922781B (en)
WO (1) WO2007048277A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111726110B (en) * 2020-07-06 2024-01-30 中车青岛四方车辆研究所有限公司 PWM signal generation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10248255A (en) * 1997-02-28 1998-09-14 Toshiba Lighting & Technol Corp Power-supply apparatus
JP2003111407A (en) * 2001-09-28 2003-04-11 Sanken Electric Co Ltd Switching power supply unit
CN1421986A (en) * 2001-11-29 2003-06-04 三垦电气株式会社 Switch type power source

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10248255A (en) * 1997-02-28 1998-09-14 Toshiba Lighting & Technol Corp Power-supply apparatus
JP2003111407A (en) * 2001-09-28 2003-04-11 Sanken Electric Co Ltd Switching power supply unit
CN1421986A (en) * 2001-11-29 2003-06-04 三垦电气株式会社 Switch type power source

Also Published As

Publication number Publication date
CN1922781B (en) 2010-05-12
CN1922781A (en) 2007-02-28

Similar Documents

Publication Publication Date Title
US9584036B2 (en) Solar photovoltaic power conditioning units
US7800924B2 (en) Power converter apparatus and methods using neutral coupling circuits with interleaved operation
TWI305078B (en)
WO2005091483A1 (en) Dc-dc converter
TW200937157A (en) Synchronous regulation power converters, synchronous regulation circuits, and synchronous regulation methods
CN103580484B (en) Synchronous rectificating device and control method thereof
JP2011526478A (en) Resonant power converter
JPH09131075A (en) Inverter equipment
JP3344356B2 (en) Switching power supply
JP3655804B2 (en) Grid-connected inverter device
JP2004104963A (en) Inverter device for system interconnection
CN100385781C (en) Current equalizing method and apparatus for alternately controlling power factor correcting circuit
WO2007048277A1 (en) A multi-edge synchronous switching power supply and its controller
CN111786582A (en) Series 12-pulse rectifier using low-complexity power electronic transformer
JP2011160603A (en) Fuel cell generator
JP2004135408A (en) System-linked inverter device
JP2005304211A (en) Power converter
JP3190622B2 (en) High frequency induction heating system for conductive materials
Bhattacharjee et al. A new bidirectional AC-link microinverter based on dual active bridge topology
JP2008092786A (en) Electric power converter
AU2019292002B2 (en) Single-phase energy utilization tracking inverter
TW561677B (en) Magnetic amplifier ac/dc converter with primary side regulation
Liu et al. Stacked DC-DC Converter with Wide Voltage Range
Chakraborty et al. An isolated Buck-Boost type high-frequency link photovoltaic microinverter
JP2580108B2 (en) Power converter

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200580005590.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05804073

Country of ref document: EP

Kind code of ref document: A1