CN105896977B - A kind of Sofe Switch of crisscross parallel type DC-DC converter - Google Patents
A kind of Sofe Switch of crisscross parallel type DC-DC converter Download PDFInfo
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- CN105896977B CN105896977B CN201610213077.6A CN201610213077A CN105896977B CN 105896977 B CN105896977 B CN 105896977B CN 201610213077 A CN201610213077 A CN 201610213077A CN 105896977 B CN105896977 B CN 105896977B
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- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
- H02M3/1586—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
A kind of Sofe Switch of crisscross parallel type DC DC converters, is related to DC DC converters.Equipped with power supply, output capacitance, power switch tube, fly-wheel diode, Absorption Capacitance, clamping capacitance, auxiliary switch, resonant inductance, resonant capacitance, switching capacity, output diode, the first coupling inductance and the second coupling inductance；First coupling inductance and the second coupling inductance are three winding coupling inductance, and three winding coupling inductance includes a primary side winding and the first vice-side winding and the second vice-side winding.No-voltage conducting and the zero voltage turn-off for realizing power switch tube, have automatic current equalizing ability, using current fall rate in the leakage inductance control diode of two three winding coupling inductances, solve the reverse-recovery problems of diode when off.It realizes that the high-gain of converter exports using second and third winding of three winding coupling inductance, the voltage output of converter is expanded using two switching capacities, reduces the voltage stress of power device, power attenuation is small, simple for structure.
Description
Technical field
The present invention relates to DC-DC converters, more particularly, to a kind of Sofe Switch of crisscross parallel type DC-DC converter.
Background technology
With increasingly sharpening for the energy and environmental issue, the new energy grid-connected powers technology such as photovoltaic cell, fuel cell obtains
To extensive concern.And the output voltage grade of photovoltaic cell, fuel cell is relatively low, the power supply that cannot meet existing electrical equipment is wanted
It asks, can not also carry out grid-connected transmission, so needing to be inserted into a high-gain between these electricity generation modules and common DC bus
The high-performance DC-DC converter of the low input current ripple of high efficiency.It is many in order to effectively improve the voltage gain of DC converter
Scholar proposes a variety of converter topology structures with high boost function.Flyback converter circuit is simple, by adjusting flyback
The turn ratio of transformer can realize high voltage gain, but in low pressure input High voltage output application scenario, transformer primary side the number of turns is seldom,
The ratio of magnetizing inductance shared by transformer leakage inductance is caused to significantly increase, leakage inductance does not only result in conversion efficiency reduction, while can cause
It is excessively high that switching tube turns off due to voltage spikes.In recent years, crisscross parallel Boost and its in fuel cell and photovoltaic generating system
In obtained the extensive concern of many scholars, input, output current ripple can be reduced using crisscross parallel mode, improve transformation
The dynamic response of device.But the voltage stress of switching tube is still equal to output voltage, the voltage gain of converter does not also obtain
It improves.
Invention content
The purpose of the present invention is to provide power switch tube no-voltages to open, the high-gain of zero voltage turn-off exports and low electricity
A kind of Sofe Switch of crisscross parallel type DC-DC converter of compression.
The present invention is equipped with power supply, output capacitance, two power switch tubes, two fly-wheel diodes, two Absorption Capacitances, two
A clamping capacitance, two auxiliary switches, two resonant inductances, two resonant capacitances, two switching capacities, two two poles of output
Pipe, the first coupling inductance and the second coupling inductance；First coupling inductance and the second coupling inductance are three winding coupling inductance,
The three winding coupling inductance includes a primary side winding and the first vice-side winding and the second vice-side winding；
The one end and institute of one end of the primary side winding of first coupling inductance with the second coupling inductance primary side winding
The anode for stating power supply is connected, the drain electrode of the other end of the primary side winding of first coupling inductance and first power switch tube
With one end of first Absorption Capacitance, the draining of first auxiliary switch, one end of the first switch capacitance, described
The anode of one clamp diode is connected；The source electrode of first auxiliary switch is connected with one end of first resonant inductance；Institute
The other end for stating the first resonant inductance is connected with one end of first resonant capacitance；The other end of the first switch capacitance with
One end of first vice-side winding of first coupling inductance is connected；First vice-side winding of first coupling inductance it is another
End is connected with one end of the second vice-side winding of second coupling inductance；Second vice-side winding of second coupling inductance
The other end is connected with the anode of the cathode of first fly-wheel diode and first output diode；
The draining of the other end of the primary side winding of second coupling inductance and second power switch tube, described second
One end of Absorption Capacitance, the draining of second auxiliary switch, one end of the second switch capacitance, second clamp, two poles
The anode of pipe is connected；The source electrode of second auxiliary switch is connected with one end of second resonant inductance；Second resonance
The other end of inductance is connected with one end of second resonant capacitance；The other end of the second switch capacitance and second coupling
The one end for closing the first vice-side winding of inductance is connected；The other end of first vice-side winding of second coupling inductance and described the
One end of second vice-side winding of one coupling inductance is connected；The other end of second vice-side winding of first coupling inductance and institute
The anode of the cathode and second output diode of stating the second fly-wheel diode is connected；
The one of the cathode and the output capacitance of the cathode of first output diode and second output diode
End is connected, the cathode of the other end of the output capacitance and the power supply, the draining of first power switch tube, described second
The draining of power switch tube, one end of first Absorption Capacitance, one end of second Absorption Capacitance, first resonance electricity
One end of appearance, second resonant capacitance one end be commonly connected together.
Preferably, further including the first resonance circuit and the second resonance circuit.
Preferably, drain electrode and institute of the one end of the first passive-clamp resonance circuit with first power switch tube
State first switch capacitance one end connection, the other end of the first passive-clamp resonance circuit with two pole of the second afterflow
The anode of pipe is connected；The drain electrode of one end of the second passive-clamp resonance circuit and second power switch tube and described the
One end of two switching capacities connects, anode of the other end of second passive clamp circuit ground with first fly-wheel diode
It is connected.First resonance circuit includes the first Absorption Capacitance, the first auxiliary switch, the first resonant inductance, the first resonant capacitance；
Second resonance circuit includes the second Absorption Capacitance, the second auxiliary switch, the second resonant inductance, the second resonant capacitance.
When work, before main switch conducting, auxiliary switch is first connected.Main switch electric current declines after auxiliary switch conducting,
Last backward dioded conducting realizes that no-voltage conducting is prepared for main switch.In the effect of Absorption Capacitance when switching tube turns off
Under, main switch realizes zero voltage turn-off.The electric current of resonant inductance is zero before opening, and auxiliary switch realizes zero current passing.
The anti-parallel diodes conducting of auxiliary switch, auxiliary switch realize zero voltage turn-off before shutdown.
The present invention proposes a kind of high-gain DC-DC converter with coupling inductance and switching capacity.The converter voltage
High gain, power grade are high, input current ripple is small, main switch voltage stress is small.Under the action of auxiliary circuit, master opens
Pass realizes that no-voltage is opened and zero voltage turn-off, auxiliary switch realize zero current passing and zero voltage turn-off.Due to coupling
The cross-couplings of inductance, converter have automatic current equalizing ability.
Description of the drawings
Fig. 1 is the circuit theory of constitution figure of the embodiment of the present invention.
Fig. 2 is the equivalent circuit of the embodiment of the present invention.
Fig. 3 is the 1 [t of switch mode of the embodiment of the present invention0t1] equivalent circuit diagram.
Fig. 4 is the 2 [t of switch mode of the embodiment of the present invention1t2] equivalent circuit diagram.
Fig. 5 is the 3 [t of switch mode of the embodiment of the present invention2t3] equivalent circuit diagram.
Fig. 6 is the 4 [t of switch mode of the embodiment of the present invention3t4] equivalent circuit diagram.
Fig. 7 is the 5 [t of switch mode of the embodiment of the present invention4t5] equivalent circuit diagram.
Fig. 8 is the 6 [t of switch mode of the embodiment of the present invention5t6] equivalent circuit diagram.
Fig. 9 is the 7 [t of switch mode of the embodiment of the present invention6t7] equivalent circuit diagram.
Figure 10 is the 8 [t of switch mode of the embodiment of the present invention7t8] equivalent circuit diagram.
Figure 11 is the 9 [t of switch mode of the embodiment of the present invention8t9] equivalent circuit diagram.
Figure 12 is the 10 [t of switch mode of the embodiment of the present invention9t10] equivalent circuit diagram.
Figure 13 is the 11 [t of switch mode of the embodiment of the present invention10t11] equivalent circuit diagram.
Figure 14 is the key waveforms figure of the embodiment of the present invention.
Specific implementation mode
Below by the present invention will be further described in conjunction with the accompanying drawings and embodiments.
Referring to Fig. 1, a kind of soft-switching and high-gain DC-DC converter provided by the invention, including two power tube (S1、S2),
Two Absorption Capacitance (CS1、CS2), two auxiliary switch (Sr1、Sr2), two resonant inductance (Lr1、Lr2), two resonant capacitances
(Cr1、Cr2), two clamp diode (DC1、DC2), two clamping capacitance (CC1、CC2), two fly-wheel diode (Df1、Df2), two
A switching capacity (Cf1、Cf2), two output diode (Do1、Do2), an output capacitance (Co) and two three winding coupling electricity
Sense the, it is characterized in that primary side winding (L of the first coupling inductance1p) one end and the second coupling inductance primary side winding (L2p) one
End and power supply (Vin) anode be connected, the other end then with the first power tube (S1) drain electrode, the first clamp diode (DC1) sun
Pole and first switch capacitance (Cf1) one end and the first Absorption Capacitance (CS1) one end and the first auxiliary switch (Sr1) drain electrode phase
Even；First clamp diode (Dc1) cathode and the first clamping capacitance (CC1) one end and the second fly-wheel diode (Df2)
Anode is connected, first switch capacitance (Cf1) the other end and the first three winding coupling inductance the first vice-side winding (L1s1) one
End is connected, the first vice-side winding (L of the first three winding coupling inductance1s1) the other end and the second coupling inductance the second secondary side
Winding (L2s2) one end be connected, the second vice-side winding (L of the second three winding coupling inductance2s2) the other end and the first afterflow two
Pole pipe (Df1) cathode and the first output diode (Do1) anode be connected；Second three winding coupling inductance primary side winding (L2p)
The other end and the second power switch tube (S2) drain electrode and the second clamp diode (DC2) anode and second switch capacitance
(Cf2) one end and the second Absorption Capacitance (CS2) one end and the second auxiliary switch (Sr2) drain electrode be connected, second clamp two
Pole pipe (Dc2) cathode and the second clamping capacitance (CC2) one end and the first fly-wheel diode (Df1) anode be connected, second opens
Powered-down appearance (Cf2) the other end and the second three winding coupling inductance the first vice-side winding (L2s1) one end be connected, the two or three around
First vice-side winding (L of group coupling inductance2s1) the other end and the first three winding coupling inductance the second vice-side winding (L1s2)
One end be connected, first the second vice-side winding of three winding coupling inductance (L1s2) the other end and the second fly-wheel diode (Df2)
Cathode and the second output diode (Do2) anode be connected, the second output diode (Do2) cathode and the first output diode
(Do1) cathode and output capacitance (Co) one end be connected, output capacitance (Co) the other end and power supply (Vin) negative terminal, first
Power switch tube (S1) source electrode, the second power switch tube (S2) source electrode, the first Absorption Capacitance (CS1) one end, second absorb
Capacitance (CS2) one end, the first resonant capacitance (Cr1) one end, the second resonant capacitance (Cr2) one end, the first clamping capacitance
(CC1) one end and the second clamping capacitance (CC2) one end be commonly connected together.
Primary side (the L of the first above-mentioned coupling inductance1p) and power supply (Vin) anode connecting pin and the first coupling inductance pair side
Second winding (L1s1) and first switch capacitance (Cf1) connecting pin and first the second vice-side winding of coupling inductance (L1s2) and the
Two fly-wheel diode (Df2) cathode connecting pin be the first coupling inductance Same Name of Ends；The primary side winding of second coupling inductance
(L2p) and power supply (Vin) connecting pin of anode and the first vice-side winding (L of the second coupling inductance2s1) and second switch capacitance
(Cf2) connecting pin and the second coupling inductance the second vice-side winding (L2s2) and the first fly-wheel diode (Df1) cathode company
Connect the Same Name of Ends that end is the second coupling inductance.
A kind of boost converter equivalent circuit is as shown in Fig. 2, the leakage inductance reduction on the first and second coupling inductance pair side is arrived
Primary side uses L respectivelyka、LkaIt indicates, converter has 22 operation modes, as shown in Fig. 3~13.It is symmetrical due to circuit
Property, only 11 mode therein is analyzed：
1 [t of mode0t1]:Power switch tube (S1)、(S2) it is in opening state, output diode (Do1)、(Do2) all it is anti-
To biasing, clamp diode (Dc1)、(Dc2) and fly-wheel diode (Df1)、(Df2) it is off state, input voltage is to excitation
Inductance (L1p), (L2p) and respective leakage inductance (Lka), (Lka) linear-charging.
2 [t of mode1t2]:In t1Moment, (S1) shutdown, the magnetizing inductance and leakage inductance pair first of the first coupling inductance absorb electricity
Hold (CS1) linear-charging.t1The voltage at moment, Absorption Capacitance is zero, and main switch realizes zero voltage turn-off.
3 [t of mode2t3]:In t2Moment, the first clamper tube (DC1) reversed pressure drop is down to zero and begins to turn on, the first coupling electricity
The first clamping capacitance of primary current pair (C of senseC1) charging, the first power tube S1It still turns off, and its drain-source voltage is by the first pincers
Position capacitance (CC1) pincers sets, the first three winding coupling inductance leakage inductance (Lka) in energy transfer to the first clamping capacitance (CC1) in.
4 [t of mode3t4]:In t3Moment, the first output diode (Do1) begin to turn on, first switch capacitance (Cf1) in
Energy starts to shift to load.Second fly-wheel diode (D simultaneouslyf2) conducting, the first clamping capacitance (CC1) in energy transfer arrive
Second switch capacitance (Cf2) in.
5 [t of mode4t5]：In t4Moment, the first clamp diode (DC1) shutdown.
6 [t of mode5t6]：In t5Moment, the first auxiliary switch (Sr1) conducting.Main switch (S1) drain-source voltage starts resonance
Decline, the first auxiliary switch (Sr1) current resonance rise, in the first resonant inductance (Lr1) under the action of, the first auxiliary is opened
Close pipe (Sr1) realize zero current passing.First output diode (Do1), the second fly-wheel diode (Df2) electric current start under
Drop.
Harmonic period is：
Wherein
7 [t of mode6t7]:In t6Moment, the first output diode (Do1) and the second fly-wheel diode (Df2) shutdown.At this point,
First Absorption Capacitance (CS1) and the first resonant capacitance (Cr1) be together in series and the first resonant inductance (Lr1) resonance.Harmonic period is：
8 [t of mode7t8]:In t7Moment, the first Absorption Capacitance (Cs1) voltage resonance to zero, first power switch tube (S1)
Anti-parallel diodes conducting.First resonant inductance (Lr1) and the first resonant capacitance (Cr1) resonance.
Harmonic period is：
9 [t of mode8t9]:In t8Moment, the first power switch tube (S1) conducting, since backward dioded has been connected, first
Power tube (S1) realize no-voltage conducting.
10 [t of mode9t10]:In t9Moment, the first resonant inductance (Lr1) current resonance to zero and inversely increase, first is auxiliary
Help switching tube (Sr1) anti-parallel diodes conducting.
11 [t of mode10t11]:In t10Moment, the first auxiliary switch pipe (Sr1) conducting, due to its anti-parallel diodes
Conducting, therefore, the first auxiliary switch (Sr1) realize zero voltage turn-off.
The voltage gain of the converter is：
WhereinT is the period of main switch, T1The time be connected for main switch conduction to auxiliary switch.
Referring to Fig. 3~13, the realization process flowed is：If the first and second power switch tube S1、S2Be connected duty respectively than for
D1、D2, two vice-side windings of two coupling inductances are all N to the turn ratio of respective primary side winding, then the voltage of the first branch 1
Gain is：
It is also possible to which the voltage gain for obtaining the second branch 2 is：
It can be seen that Vo1=Vo2, flowed certainly so two branches can still be realized in the case where respective duty ratio is not equal.
Figure 14 is the key waveforms figure when converter works.
The present invention controls current fall rate in diode using the leakage inductance of two three winding coupling inductances, to solve
The reverse-recovery problems of diode when off.Converter is realized using second and third winding of two three winding coupling inductances
High-gain output, the voltage output of converter has then further been expanded using two switching capacities, has also reduced power device
The voltage stress of part, entire inverter power loss is small, and structure is more succinct.
Claims (2)
1. a kind of Sofe Switch of crisscross parallel type DC-DC converter, it is characterised in that be equipped with power supply, output capacitance, first and the
Two power switch tubes, first and second fly-wheel diode, first and second Absorption Capacitance, first and second clamping capacitance, first
And second auxiliary switch, first and second resonant inductance, first and second resonant capacitance, first and second switching capacity, first
And second output diode, the first coupling inductance and the second coupling inductance；First coupling inductance and the second coupling inductance are
Three winding coupling inductance, the three winding coupling inductance include a primary side winding and the first vice-side winding and the second secondary side around
Group；
The one end and the electricity of one end of the primary side winding of first coupling inductance with the second coupling inductance primary side winding
The anode in source is connected, drain electrode and institute of the other end of the primary side winding of first coupling inductance with first power switch tube
State one end of the first Absorption Capacitance, the draining of first auxiliary switch, one end of the first switch capacitance, first pincers
The anode of position diode is connected；The source electrode of first auxiliary switch is connected with one end of first resonant inductance；Described
The other end of one resonant inductance is connected with one end of first resonant capacitance；The other end of the first switch capacitance with it is described
One end of first vice-side winding of the first coupling inductance is connected；The other end of first vice-side winding of first coupling inductance with
One end of second vice-side winding of second coupling inductance is connected；Second vice-side winding of second coupling inductance it is another
End is connected with the anode of the cathode of first fly-wheel diode and first output diode；
The draining of the other end of the primary side winding of second coupling inductance and second power switch tube, described second absorbs
One end of capacitance, the draining of second auxiliary switch, one end of the second switch capacitance, second clamp diode
Anode is connected；The source electrode of second auxiliary switch is connected with one end of second resonant inductance；Second resonant inductance
The other end be connected with one end of second resonant capacitance；The other end of the second switch capacitance couples electricity with described second
One end of first vice-side winding of sense is connected；The other end of first vice-side winding of second coupling inductance and first coupling
The one end for closing the second vice-side winding of inductance is connected；The other end of second vice-side winding of first coupling inductance and described the
The anode of the cathode of two fly-wheel diodes and second output diode is connected；
One end phase of the cathode and the output capacitance of the cathode of first output diode and second output diode
Even, the other end of the output capacitance and the cathode of the power supply, the source electrode of first power switch tube, second power
The source electrode of switching tube, the other end of first Absorption Capacitance, the other end of second Absorption Capacitance, first resonance electricity
The other end of appearance, the other end of second resonant capacitance, one end of first clamping capacitance, second clamping capacitance
One end is commonly connected together；The cathode of the other end of first clamping capacitance and first clamp diode and described the
The anode of two fly-wheel diodes is connected；Cathode and institute of the other end of second clamping capacitance with second clamp diode
The anode for stating the first fly-wheel diode is connected.
2. a kind of Sofe Switch of crisscross parallel type DC-DC converter as described in claim 1, it is characterised in that further include first humorous
Shake circuit and the second resonance circuit；First resonance circuit includes the first Absorption Capacitance, the first auxiliary switch, the first resonance electricity
Sense, the first resonant capacitance；Second resonance circuit includes the second Absorption Capacitance, the second auxiliary switch, the second resonant inductance, the
Two resonant capacitances.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213077.6A CN105896977B (en) | 2016-04-07 | 2016-04-07 | A kind of Sofe Switch of crisscross parallel type DC-DC converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213077.6A CN105896977B (en) | 2016-04-07 | 2016-04-07 | A kind of Sofe Switch of crisscross parallel type DC-DC converter |
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| CN105896977A CN105896977A (en) | 2016-08-24 |
| CN105896977B true CN105896977B (en) | 2018-09-11 |
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| CN112821760B (en) * | 2021-01-22 | 2022-05-24 | 上海空间电源研究所 | Weinberg soft switching converter for spacecraft |
| CN116073653B (en) * | 2023-02-20 | 2024-06-18 | 国网湖南省电力有限公司 | Non-isolated direct current converter suitable for low-voltage photovoltaic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6043634A (en) * | 1998-12-22 | 2000-03-28 | Intel Corporation | Interleaved switching regulator |
| CN101247084A (en) * | 2008-03-14 | 2008-08-20 | 浙江大学 | Active-clamp high-gain alternation and parallel connection boosting converter |
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| CN103457460A (en) * | 2013-08-26 | 2013-12-18 | 华南理工大学 | High-gain boost converter based on coupling inductance and voltage transfer technology |
| CN103618446A (en) * | 2013-12-16 | 2014-03-05 | 厦门大学 | Passive clamping parallel type boost converter with coupling inductors and switch capacitors |
| CN105024548A (en) * | 2015-07-27 | 2015-11-04 | 江苏大学 | Improved split inductance zero-current-transition boost chopper circuit and modulation method thereof |
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2016
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| US6043634A (en) * | 1998-12-22 | 2000-03-28 | Intel Corporation | Interleaved switching regulator |
| CN101247084A (en) * | 2008-03-14 | 2008-08-20 | 浙江大学 | Active-clamp high-gain alternation and parallel connection boosting converter |
| CN201383753Y (en) * | 2009-03-23 | 2010-01-13 | 浙江大学 | Pressure raising type staggered parallel connection convertor realizing inactive clamping through coupling inductance added with switching capacity |
| CN103457460A (en) * | 2013-08-26 | 2013-12-18 | 华南理工大学 | High-gain boost converter based on coupling inductance and voltage transfer technology |
| CN103618446A (en) * | 2013-12-16 | 2014-03-05 | 厦门大学 | Passive clamping parallel type boost converter with coupling inductors and switch capacitors |
| CN105024548A (en) * | 2015-07-27 | 2015-11-04 | 江苏大学 | Improved split inductance zero-current-transition boost chopper circuit and modulation method thereof |
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