CN103780076B - A kind of high power switching power supply - Google Patents
A kind of high power switching power supply Download PDFInfo
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- CN103780076B CN103780076B CN201410060884.XA CN201410060884A CN103780076B CN 103780076 B CN103780076 B CN 103780076B CN 201410060884 A CN201410060884 A CN 201410060884A CN 103780076 B CN103780076 B CN 103780076B
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- 239000004065 semiconductor Substances 0.000 claims description 53
- 238000004146 energy storage Methods 0.000 claims description 35
- 238000012937 correction Methods 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 14
- 239000000523 sample Substances 0.000 description 9
- 230000007257 malfunction Effects 0.000 description 8
- 230000001012 protector Effects 0.000 description 8
- 238000003745 diagnosis Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 101100100146 Candida albicans NTC1 gene Proteins 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
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- 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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Abstract
The invention discloses a kind of high power switching power supply, it includes PFC module and DC DC module, described PFC module includes the first main circuit, first control circuit, with the first output overcurrent protection circuit, input voltage overvoltage, under-voltage protecting circuit, at least one protection circuit in first thermal-shutdown circuit and output voltage overvoltage crowbar, described DC DC module includes the second main circuit and second control circuit, described PFC module includes the first wireless transmitter module being connected with first control circuit, described DC DC module includes the second wireless transmitter module being connected with second control circuit, described PFC module is received and sent messages by the first wireless transmitter module and the second wireless transmitter module respectively with described DC DC module.PFC module, communication between DC DC module and external equipment can be realized, it is achieved thereby that external equipment is to PFC module and the remote access of DC DC module, it is simple to the maintenance to whole Switching Power Supply by wireless transmitter module.
Description
Technical field
The present invention relates to switch power technology field, particularly relate to one and utilize radio communication
Include that PFC (PFC) module and DC voltage turn DC voltage (DC-DC)
The high power switching power supply of module.
Background technology
High power switching power supply circuit generally includes two modules: front end PFC (power because of
Number correction) module and rear end DC-DC (DC voltage turns DC voltage) module.Wherein,
PFC module realizes the alternating voltage conversion to DC voltage, such as, is exchanged by 220V
Voltage is converted to 380-390V DC voltage.It is defeated that DC-DC module then realizes PFC module
The DC voltage gone out is to the conversion of the DC voltage being actually needed, such as, 380V is straight
Stream voltage is converted to 290V-360V DC voltage.PFC module be generally of overcurrent protection,
The protection circuits such as overvoltage protection, under-voltage protection and overheat protector.When PFC module is by this
A little protection circuits need the failure code by the correspondence that broken down to send out after fault being detected
Give the DC-DC module of rear end, in order to DC-DC module is sent according to PFC module
Failure code carries out corresponding operating (such as shutdown) and realizes the self-protection function of system.
Therefore, between traditional PFC module and DC-DC module, a lot of signal generally it is disposed with
Connecting line, is used for PFC transmitting fault information to DC-DC module, thus causes whole
The internal cabling of Switching Power Supply is complicated, is not easily assembled.Come from system fault diagnosis angle simultaneously
See, be not easy to learn the particular location of internal system fault.
Summary of the invention
The invention discloses a kind of high power switching power supply, it includes PFC mould
Block and DC voltage turn DC voltage module, and described power factor correction module includes first
Main circuit, first control circuit and the first output overcurrent protection circuit, input electricity
Press through, under-voltage protecting circuit, the first thermal-shutdown circuit and output voltage overvoltage protection
At least one protection circuit in circuit, described DC voltage turns DC voltage module and includes
Second main circuit and second control circuit, it is characterised in that described PFC mould
Block also includes the first wireless transmitter module being connected with first control circuit, described unidirectional current
Pressure turns the second wireless transmit mould that DC voltage module also includes being connected with second control circuit
Block, described power factor correction module and described DC voltage turn DC voltage module respectively
Received and sent messages by the first wireless transmitter module and the second wireless transmitter module.
Preferably, described DC voltage turns DC voltage module and also includes that input current crosses stream
In protection circuit, the second output overcurrent protection circuit and the second thermal-shutdown circuit
At least one protection circuit.
Preferably, described power factor correction module is active power factor correction module.
Preferably, described first main circuit includes the first rectifier bridge, the first alternating expression energy storage
Inductance, the second alternating expression energy storage inductor, the first commutation diode, the second commutation diode,
First metal-oxide-semiconductor and the second metal-oxide-semiconductor, described first alternating expression energy storage inductor and described the
The string that one commutation diode is formed and described second alternating expression energy storage inductor and described second
Commutation diode formed string and connect, the output of described first rectifier bridge is respectively through first
Alternating expression energy storage inductor and the second alternating expression energy storage inductor access described first commutation diode
Anode and the anode of the second commutation diode, described first metal-oxide-semiconductor and described 2nd MOS
The source class of pipe connects described first alternating expression energy storage inductor and described second alternating expression storage respectively
The output of energy inductance, described first metal-oxide-semiconductor and the grounded drain of described second metal-oxide-semiconductor,
The grid of described first metal-oxide-semiconductor and described second metal-oxide-semiconductor is by described first control circuit control
System.
Preferably, described first control circuit includes the first single-chip microcomputer and PFC
Control chip, described first single-chip microcomputer and Power Factor Correction Control chip interconnect,
Described first single-chip microcomputer and at least one in the described power factor correction module at its place
Protection circuit connects, the in described Power Factor Correction Control chip and the first main circuit
The grid of one metal-oxide-semiconductor and described second metal-oxide-semiconductor connects, and described first single-chip microcomputer and institute
State the first wireless transmitter module to connect.
Preferably, described first single-chip microcomputer and described first wireless transmitter module pass through SPI
Bus connects.
H-bridge circuit that preferably, described second main circuit includes being made up of four metal-oxide-semiconductors,
Transformator, the second rectifier bridge, energy storage inductor, the first energy storage are held concurrently filter capacitor and the second storage
The double filter capacitor of energy, the output voltage of described first main circuit accesses through described H-bridge circuit
The primary of described transformator, the secondary output of described transformator is through the second rectifier bridge rectification
After, then through described first energy storage hold concurrently filter capacitor, described energy storage inductor and described second storage
Can hold concurrently after filter capacitor filters and export, and described second control circuit is by with described
The grid connection of four metal-oxide-semiconductors in H bridge controls described H-bridge circuit.
Preferably, described second control circuit includes that second singlechip, Sofe Switch control core
Sheet and H bridge driving chip, described second singlechip and Sofe Switch control chip interconnect,
Described Sofe Switch control chip is connected with each other with H bridge driving chip, and described H bridge drives core
Described in the sheet H bridge with described second main circuit, the grid of four metal-oxide-semiconductors is connected, and institute
State the described DC voltage at second singlechip and its place and turn in DC voltage module at least
A kind of protection circuit connects, and described Sofe Switch control chip passes through described H bridge driving chip
Driving the H-bridge circuit controlled in described second main circuit, described second singlechip is with described
Second wireless transmitter module connects.
It is further preferred that described second singlechip leads to described second wireless transmitter module
Cross spi bus to connect.
Preferably, described first wireless transmitter module and the second wireless transmitter module use
NRF2401, NRF903 or CC1020 chip.
The present invention passes through to arrange wireless transmitter module in PFC module and DC-DC module,
And received and dispatched by wireless transmitter module and to represent the failure code of internal concrete fault and come real
Existing PFC module, failure code transmission between DC-DC module and failure diagnostic apparatus three,
Thus decrease the wiring between PFC module and DC-DC module, facilitate assembling, with
Time also can improve the diagnosis efficiency of the system failure.
The technique effect of the present invention is as follows:
(1) line within Switching Power Supply is decreased, it is simple to the layout of spaced members；
(2) by the sampled result of protection circuit (include overcurrent protection, overvoltage protection,
The critical state (threshold value) of under-voltage protection and/or overheat protector etc. and corresponding operating thereof),
Wireless transmitter module is utilized to realize PFC module and DC-DC by single-chip microcomputer or DSP
Communication between module；
(3) by each protection circuit in PFC module and control circuit, it is achieved PFC
Main circuit output overcurrent, input voltage overvoltage and under-voltage, output voltage mistake in module
Pressure and/or overheat protector function；
(4) by each protection circuit in DC-DC module and control circuit, it is achieved
The input current of DC-DC module main circuit is crossed stream, output overcurrent and/or excess temperature and is protected
Protective function；And
(5) wireless transmitter module can also be utilized to external equipment such as failure diagnostic apparatus
Transmission information, it is achieved external equipment is to protection circuit work in PFC module and DC-DC module
Make the remote access of situation, it is achieved the trouble point within PFC module and DC-DC module
Remotely diagnosis, it is simple to the maintenance to whole Switching Power Supply；Simultaneously by wireless module, can
To protect threshold values to enter PFC module and DC-DC module on the monitoring interface of external equipment
Row programming.
Accompanying drawing explanation
Hereinafter, by combining accompanying drawing, the detailed description of the invention according to the present invention is carried out specifically
Bright, wherein:
Fig. 1 is the circuit theory diagrams of the APFC module of the embodiment of the present invention；
Fig. 2 is the circuit theory diagrams of the main circuit of the DC-DC module of the embodiment of the present invention；
With
Fig. 3 is control circuit and the wireless transmit mould of the DC-DC module of the embodiment of the present invention
The circuit theory diagrams of block.
Detailed description of the invention
PFC (PFC) module in the present invention can be active power factor
Correction (APFC) module or PPFC (PPFC) module, here,
Illustrate as a example by APFC module.It is to be understood that the present invention also may be used
It is applied to PPFC module.
Fig. 1 is the circuit theory diagrams of APFC module.As it is shown in figure 1, APFC module bag
Include APFC main circuit MC, APFC control circuit CC and wireless transmitter module RF1.Its
In, APFC main circuit MC includes rectifier bridge 1, alternating expression energy storage inductor L1, alternating expression
Energy storage inductor L2, commutation diode D1, commutation diode D2, filter capacitor C4, MOS
Pipe Q1, metal-oxide-semiconductor Q2.Preferably, export to realize the constant voltage of APFC, APFC
Main circuit MC also includes that the voltage close loop being made up of resistance R8 and resistance R9 controls sampling
Circuit.APFC control circuit CC includes interleaved PFC control chip U3 and single-chip microcomputer
MCU1。
String that energy storage inductor L1 and commutation diode D1 are formed and energy storage inductor L2 with
Commutation diode D2 formed string and connect, the most rectified bridge of alternating current AC 1 is carried out
Rectification, the voltage after rectification accesses rectification through energy storage inductor L1 and energy storage inductor L2 respectively
Diode D1 and the anode of commutation diode D2, rectified diode D1 and rectification two
Voltage input filter storage capacitor C4 after the pipe D2 rectification of pole, filters storage capacitor C4
The voltage at two ends is after the resistance R8 in voltage close loop control sample circuit and R9 dividing potential drop
It is input to the FB pin of interleaved PFC control chip U3.Specifically, voltage close loop control
In sample circuit processed, resistance R8 and R9 and filter capacitor C4 of series connection form parallel circuit,
One end of this parallel circuit and the negative electrode of diode D1 and D2, the other end is connected to zero electricity
Position.The source class of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 connects energy storage inductor L1 and energy storage electricity respectively
Sense L2 output, metal-oxide-semiconductor Q1 and the grounded drain of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q1 and
The grid of metal-oxide-semiconductor Q2 respectively with GD1 pin and the GD2 of interleaved PFC control chip U3
Pin connects, to be produced metal-oxide-semiconductor Q1 and MOS by interleaved PFC control chip U3
The control signal of pipe Q2, thus realize the constant voltage output of APFC module.
Preferably, APFC main circuit MC also includes the APFC mould being made up of resistance R12
The output overcurrent testing circuit of block.The current sample of output overcurrent testing circuit
Signal (crossing stream sampled signal) CS1 accesses the CS1 pin of single-chip microprocessor MCU 1.Work as list
Sheet machine MCU1 detects that the amplitude of current sampling signal CS1 is pre-in exceeding single-chip microprocessor MCU 1
During the threshold value first set, single-chip microprocessor MCU 1 output low level signal is to interleaved PFC control
The SS pin of coremaking sheet U3, to close whole APFC module.
Preferably, APFC main circuit MC also includes the APFC being made up of resistance R13, R14
The input voltage of module is under-voltage, overvoltage crowbar, and this input voltage is under-voltage, overvoltage is protected
Protection circuit is connected between outfan and the ground of rectifier bridge 1.Specifically, rectified bridge 1
Voltage after rectification produce after resistance R13 and R14 dividing potential drop voltage sampling signal (overvoltage,
Under-voltage sampled signal), and it is linked into the OVP/UVP pin of single-chip microprocessor MCU 1.
Preferably, APFC main circuit MC also includes being made up of divider resistance R6 and R7
The output voltage overvoltage crowbar of APFC module, this output voltage overvoltage crowbar
It is connected to the two ends of filter capacitor C4.Specifically, the output electricity of APFC main circuit MC
Pressure PFC produces voltage sampling signal after resistance R6 and R7 dividing potential drop, and is linked into staggered
The OVP2 pin of formula PFC control chip U3.
Preferably, APFC control circuit CC also includes by resistance R15 and critesistor
The thermal-shutdown circuit of the APFC module of NTC2 composition, this thermal-shutdown circuit is connected to
Between voltage VCC and ground.Specifically, voltage VCC is through resistance R15 and critesistor
Produce voltage sampling signal (excess temperature sampled signal) after NTC2 dividing potential drop, and be linked into list
The pin AD0 of sheet machine MCU1.Critesistor NTC2 preferably employs the heat of negative temperature coefficient
Quick resistance.Owing to metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 is that in whole APFC module temperature is
High position, is therefore attached to metal-oxide-semiconductor Q1 by critesistor NTC2 in being embodied as
Or at metal-oxide-semiconductor Q2, for metal-oxide-semiconductor Q1 or metal-oxide-semiconductor Q2 is carried out overheat protector,
Thus realize the overheat protector to APFC module.
Spi bus communication is used between single-chip microprocessor MCU 1 and wireless transmitter module RF1,
Single-chip microprocessor MCU 1 periodically detect excess temperature sampled signal AD0, cross stream sampled signal CS1,
And overvoltage, under-voltage sampled signal OVP/UVP, and the event that will obtain according to sample information
Barrier information is sent to failure diagnostic apparatus by wireless transmitter module RF1, it is simple to fault diagnosis
Instrument remotely receives and line real time diagnosis, is simultaneously supplied to DC-DC module and protects accordingly
Signal, in order to DC-DC module carries out accordingly (presetting according to the protection signal received
) process, such as closedown process, thus protect the DC-DC module of rear end.Preferably
Ground, in single-chip microprocessor MCU 1, can carry out coding and be formed and fault message fault message
Corresponding malfunction coding, and malfunction coding is stored.Specifically, single-chip microprocessor MCU 1
Corresponding malfunction coding can be passed through wireless according to the fault message that sample information obtains
Transmitter module RF1 sends to failure diagnostic apparatus, and is supplied to DC-DC module.
In the present embodiment, interleaved PFC control chip U3 preferably employs R2A20104
Chip, single-chip microprocessor MCU 1 preferably employs XC878 chip.
DC-DC module includes main circuit, control circuit and wireless transmitter module RF2.
Fig. 2 is the circuit theory diagrams of the main circuit of DC-DC module.As in figure 2 it is shown,
The main circuit of DC-DC module include by metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and
Metal-oxide-semiconductor Q6 composition H-bridge circuit, transformator T1, rectifier bridge 2, energy storage inductor L3,
And energy storage hold concurrently filtering electric capacity C2 and electric capacity C3.Output by APFC main circuit MC
Voltage PFC is applied to H-bridge circuit, each metal-oxide-semiconductor Q3 in H-bridge circuit, metal-oxide-semiconductor Q4,
The grid of metal-oxide-semiconductor Q5 and metal-oxide-semiconductor Q6 connects the H in the control circuit of DC-DC module
Bridge driving chip (will illustrate) behind, to be controlled to drive respectively by this driving chip
Individual metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and metal-oxide-semiconductor Q6.APFC main circuit
The output voltage PFC of MC produced voltage after H-bridge circuit is input to transformator T1
Primary, the secondary produced voltage of transformator T1 is by rectifier bridge 2 rectification, rectification
After voltage through energy storage hold concurrently filtering electric capacity C2, energy storage inductor L3 and and electric capacity C3 filter
VOUT it is output as after ripple.
Preferably, the main circuit of DC-DC module also includes the DC-DC mould being made up of R1
The input current current foldback circuit of block.The input current overcurrent protection of this DC-DC module
Circuit produces current sampling signal (crossing stream sampled signal) CS3, and accesses DC-DC mould
Single-chip microprocessor MCU 2 CS3 pin in block control circuit.
Preferably, the main circuit of DC-DC module also includes the DC-DC mould being made up of R2
The output overcurrent protection circuit of block, the output overcurrent protection of this DC-DC module
Circuit is connected between direct current output negative pole and the zero potential of rectifier bridge 2.This DC-DC
The output overcurrent protection circuit of module produces current sampling signal CS2, and accesses
The CS2 pin of the Sofe Switch control chip U4 in DC-DC module control circuit.
Fig. 3 is that the circuit of the control circuit of DC-DC module and wireless transmitter module RF2 is former
Reason figure.As it is shown on figure 3, the control circuit of DC-DC module includes single-chip microprocessor MCU 2, soft
Switch control chip U4 and H bridge driving chip.When single-chip microprocessor MCU 2 detects that electric current is adopted
During the threshold value that the amplitude of sample signal CS3 signal pre-sets in exceeding single-chip microprocessor MCU 2,
Single-chip microprocessor MCU 2 by the SS pin of output low level signal to Sofe Switch control chip U4,
SS pin is dragged down, thus closes whole DC-DC module by H bridge driving chip.
When Sofe Switch control chip U4 detects that the amplitude of current sampling signal CS2 signal exceedes
During the threshold value pre-set in Sofe Switch control chip U4, Sofe Switch control chip U4
Immediately its DR1 pin, DR2 pin, DR3 pin and DR4 pin are dragged down, thus
Whole DC-DC module is closed by H bridge driving chip.
Moreover it is preferred that the control circuit of DC-DC module also includes by resistance R3, heat
The thermal-shutdown circuit of the DC-DC module of quick resistance NTC1 composition, this overheat protector electricity
Road is connected between voltage VCC and ground.Specifically, voltage VCC is through resistance R3 and warm
Voltage sampling signal (excess temperature sampled signal), this electricity is produced after quick resistance NTC1 dividing potential drop
Pressure sampled signal (excess temperature sampled signal) accesses the AD0 pin of single-chip microprocessor MCU 2.Heat
Quick resistance NTC1 preferably employs the critesistor of negative temperature coefficient.Actual measurement test finds
Metal-oxide-semiconductor Q4 (Sofe Switch phase shift H bridge forearm pipe) in the whole circuit of DC-DC module
It is the position that in DC-DC module, temperature is the highest, therefore, in an embodiment by critesistor
NTC1 is attached at metal-oxide-semiconductor Q4, for metal-oxide-semiconductor Q4 is carried out overheat protector, thus
Realize the overheat protector to DC-DC module.Single-chip microprocessor MCU 2 and wireless transmitter module RF2
Between use spi bus communication, single-chip microprocessor MCU 2 is periodically detected excess temperature sampled signal
AD0 and excessively stream sampled signal CS3, and the fault message obtained according to sample information is led to
Cross wireless transmitter module RF2 to send to failure diagnostic apparatus, it is simple to failure diagnostic apparatus remotely connects
Receive and line real time diagnosis.Similarly, fault message can be carried out by single-chip microprocessor MCU 2
Coding forms malfunction coding and stores malfunction coding.Single-chip microprocessor MCU 2 can root
Corresponding malfunction coding is passed through wireless transmit mould by the fault message obtained according to sample information
Block RF2 sends to failure diagnostic apparatus.
In the present invention, H bridge driving chip preferably employs Ucc27324 chip.Sofe Switch
Control chip U4 preferably employs UCC2895 chip.Wireless transmitter module RF1 and wireless
Transmitter module RF2 preferably employs NRF2401 chip, NRF903 chip or CC1020 core
Sheet.In the above-described embodiments, wireless transmitter module RF1 and wireless transmitter module RF2
Use NRF2401 chip and carry out wireless short-range communication with 2.4GH frequency range.
The peripheral circuit configuration of NRF2401 chip is simple, with low cost, and frequency range 2.4GH resists
Jamming performance is strong, is therefore suitable for the frequency range as data communication in on-off circuit source.
Additionally, in the above-described embodiments, single-chip microprocessor MCU 1 and single-chip microprocessor MCU 2 are led to respectively
Cross wireless transmitter module RF1 and wireless transmitter module RF2 to transmit according to sample information acquisition
The malfunction coding corresponding to fault message.Due to fault message is carried out coding formed with
Malfunction coding that this fault message is corresponding also carries out being stored as prior art, so, at this
Literary composition is not described in detail.It should be understood that single-chip microprocessor MCU 1 and single-chip microprocessor MCU 2
Can be with certain time interval, the work shape that periodically will obtain according to sample information
The information (including normal information and fault message) of state is sent to external monitoring devices (bag
Include failure diagnostic apparatus and other external equipment), it is achieved thereby that external monitoring devices pair
PFC module and the remote access of DC-DC module, in order to be best understood from Switching Power Supply
Duty.Moreover, it will be understood that pass through wireless module, it is also possible to supervise in outside
Survey the threshold values on the monitoring interface of device, PFC module and DC-DC module protected to compile
Journey, thus the threshold values protecting PFC module and DC-DC module is modified and controls.
Threshold values owing to protecting PFC module and DC-DC module is programmed as prior art,
So, do not repeat them here.
Above with reference to drawings and Examples to the present invention have been described in detail, but,
It should be understood that the present invention is not limited to exemplary embodiment disclosed above.Should give
Give claim with broadest interpretation, to contain the institute of disclosed exemplary embodiment
There are modification, equivalent structure and function.
Claims (10)
1. a high power switching power supply, it includes power factor correction module and unidirectional current
Pressure turns DC voltage module, described power factor correction module include the first main circuit, the
One control circuit and first exports overcurrent protection circuit, input voltage overvoltage, owes
In voltage protection circuit, the first thermal-shutdown circuit and output voltage overvoltage crowbar extremely
Few a kind of protection circuit, described DC voltage turns DC voltage module and includes the second main circuit
And second control circuit, it is characterised in that described power factor correction module also include with
The first wireless transmitter module that first control circuit connects, described DC voltage turns unidirectional current
Die block also includes the second wireless transmitter module being connected with second control circuit, described merit
Rate factor correcting module and described DC voltage turn DC voltage module respectively by the first nothing
Line transmitter module and the second wireless transmitter module are received and sent messages,
Described first control circuit includes the first single-chip microcomputer and Power Factor Correction Control core
Sheet, described first single-chip microcomputer and Power Factor Correction Control chip interconnect, and described the
One single-chip microcomputer and at least one the protection electricity in the described power factor correction module at its place
Road connects, and described first single-chip microcomputer is connected with described first wireless transmitter module,
The current sampling signal CS1 of described first output overcurrent protection circuit accesses institute
State the CS1 pin of the first single-chip microcomputer, when described first single-chip microcomputer detects that current sample is believed
When the amplitude of number CS1 exceedes threshold value set in advance in described first single-chip microcomputer, described
One single-chip microcomputer output low level signal draws to the SS of described Power Factor Correction Control chip
Foot, to close whole power factor correction module.
High power switching power supply the most according to claim 1, it is characterised in that institute
State DC voltage turn DC voltage module also include input current current foldback circuit, second
At least one protection electricity in output overcurrent protection circuit and the second thermal-shutdown circuit
Road.
High power switching power supply the most according to claim 1 and 2, it is characterised in that
Described power factor correction module is active power factor correction module.
High power switching power supply the most according to claim 3, it is characterised in that institute
State the first main circuit include the first rectifier bridge, the first alternating expression energy storage inductor, second interlock
Formula energy storage inductor, the first commutation diode, the second commutation diode, the first metal-oxide-semiconductor,
With the second metal-oxide-semiconductor, described first alternating expression energy storage inductor and described first commutation diode
The string formed and described second alternating expression energy storage inductor and described second commutation diode shape
Become string and connect, the output of described first rectifier bridge respectively through first alternating expression energy storage electricity
Sense and the second alternating expression energy storage inductor access the anode and second of described first commutation diode
The anode of commutation diode, the source class of described first metal-oxide-semiconductor and described second metal-oxide-semiconductor divides
Do not connect the defeated of described first alternating expression energy storage inductor and described second alternating expression energy storage inductor
Go out, described first metal-oxide-semiconductor and the grounded drain of described second metal-oxide-semiconductor, a described MOS
The grid of pipe and described second metal-oxide-semiconductor is controlled by described first control circuit.
High power switching power supply the most according to claim 4, it is characterised in that institute
State the first metal-oxide-semiconductor in Power Factor Correction Control chip and the first main circuit and described
The grid of two metal-oxide-semiconductors connects.
High power switching power supply the most according to claim 5, it is characterised in that institute
State the first single-chip microcomputer to be connected by spi bus with described first wireless transmitter module.
7. according to claim 1,2, high power switching power supply described in any one of 4-6,
It is characterized in that, H-bridge circuit that described second main circuit includes being made up of four metal-oxide-semiconductors,
Transformator, the second rectifier bridge, energy storage inductor, the first energy storage are held concurrently filter capacitor and the second storage
The double filter capacitor of energy, the output voltage of described first main circuit accesses through described H-bridge circuit
The primary of described transformator, the secondary output of described transformator is through the second rectifier bridge rectification
After, then through described first energy storage hold concurrently filter capacitor, described energy storage inductor and described second storage
Can hold concurrently after filter capacitor filters and export, and described second control circuit is by with described
The grid connection of four metal-oxide-semiconductors in H bridge controls described H-bridge circuit.
High power switching power supply the most according to claim 7, it is characterised in that institute
State second control circuit and include that second singlechip, Sofe Switch control chip and H bridge drive core
Sheet, described second singlechip and Sofe Switch control chip interconnect, described Sofe Switch control
Coremaking sheet is connected with each other with H bridge driving chip, described H bridge driving chip and described second
The grid of four metal-oxide-semiconductors described in the H bridge of main circuit connects, and described second singlechip
At least one protection circuit in DC voltage module is turned with the described DC voltage at its place
Connecting, described Sofe Switch control chip drives control described by described H bridge driving chip
H-bridge circuit in second main circuit, described second singlechip and described second wireless transmit
Module connects.
High power switching power supply the most according to claim 8, it is characterised in that institute
State second singlechip to be connected by spi bus with described second wireless transmitter module.
10. according to claim 1,2, high power switch described in any one of 4-6,8-9
Power supply, it is characterised in that described first wireless transmitter module and the second wireless transmitter module
Use NRF2401, NRF903 or CC1020 chip.
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| CN201410060884.XA CN103780076B (en) | 2014-02-21 | 2014-02-21 | A kind of high power switching power supply |
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| CN105259970A (en) * | 2015-08-14 | 2016-01-20 | 天津市三源电力设备制造有限公司 | Simple maximum power point control circuit for solar cell panel |
| CN105591356A (en) * | 2016-03-07 | 2016-05-18 | 青岛歌尔声学科技有限公司 | Overvoltage and undervoltage protection circuit |
| CN107565810A (en) * | 2017-08-16 | 2018-01-09 | 安徽南瑞中天电力电子有限公司 | A kind of strong load capacity protocol converter of High Power Factor and its control strategy |
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| CN102412720A (en) * | 2011-12-20 | 2012-04-11 | 奇瑞汽车股份有限公司 | Switching power circuit and power factor correction (PFC) control circuit thereof |
| CN103269115A (en) * | 2013-06-05 | 2013-08-28 | 浙江师范大学 | Portable intelligent charger of electric car |
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| US7859874B2 (en) * | 2006-05-01 | 2010-12-28 | Rosemount Areospace Inc. | Universal AC or DC aircraft device power supply having power factor correction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412720A (en) * | 2011-12-20 | 2012-04-11 | 奇瑞汽车股份有限公司 | Switching power circuit and power factor correction (PFC) control circuit thereof |
| CN103269115A (en) * | 2013-06-05 | 2013-08-28 | 浙江师范大学 | Portable intelligent charger of electric car |
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