CN104467379B - The switch tube driving circuit of bridge switch topology - Google Patents

The switch tube driving circuit of bridge switch topology Download PDF

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Publication number
CN104467379B
CN104467379B CN201410853310.8A CN201410853310A CN104467379B CN 104467379 B CN104467379 B CN 104467379B CN 201410853310 A CN201410853310 A CN 201410853310A CN 104467379 B CN104467379 B CN 104467379B
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bridge
voltage
switch
electric capacity
drive module
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CN104467379A (en
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郭智峰
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Dongguan Enfitnix Technology Ltd
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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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices

Abstract

The switch tube driving circuit of bridge switch topology includes switch on the bridge pipe drive module, bridge switch pipe drive module and lower bridge overcurrent protection module；Each switch on the bridge pipe drive module is used for the gate pole that upper bridge driving voltage bridge IGBT Q1 to corresponding one are exported according to the gate electrode drive signals of controller；Each bridge switch pipe drive module is used to export lower bridge driving voltage to corresponding bridge IGBT once gate pole according to the gate electrode drive signals of controller；The upper bridge driving voltage of all switch on the bridge pipe drive modules is identical, and the lower bridge driving voltage of all bridge switch pipe drive modules is identical, and upper bridge driving voltage is more than lower bridge driving voltage；It is used to detect the corresponding voltage Vce between bridge IGBT colelctor electrode and emitter stage, and voltage Vce is compared with default threshold voltage once when lower bridge IGBT is turned on per bridge overcurrent protection module once.The present invention can save the overcurrent protection module of half compared with the prior art, greatly simplify drive circuit and ensure circuit over-current detection simultaneously accurately and reliably.

Description

The switch tube driving circuit of bridge switch topology
Technical field
The present invention relates to a kind of switch tube driving circuit of bridge switch topology.
Background technology
IGBT switchs tube device due to its low conduction loss, small driving power and quick switching characteristic, is widely used in In the equipment such as frequency converter, inverter and Switching Power Supply, it realizes the function of power conversion in bridge switch topology.
As shown in figure 1, inverter includes upper bridge IGBT (Insulated Gate Bipolar Transistor, insulated gate Bipolar transistor) K1, upper bridge IGBT K2, lower bridge IGBT K3, lower bridge IGBT K4 and switch tube driving circuit (not shown). Switch tube driving circuit includes four IGBT drive modules, for exporting gate drive voltage Vg1 to Vg4 to IGBT K1 respectively extremely K4, four IGBT overcurrent protection modules are respectively used to.Gate drive voltage Vg1 to Vg4 is equal, when excessively stream occurs, due to flowing through IGBT K1 to K4 electric current is identical, and actually IGBT parameter is incomplete same, then must have in bridge IGBT up and down one it is advanced Enter and move back saturation state, and then current limit continues to increase.If upper bridge IGBT moves back saturation, then bridge IGBT overcurrent protection module is descended Over-current signal will not be collected, therefore, generally required in the drive circuit of existing bridge switch topology corresponding for every IGBT One overcurrent protection module is set, such as the IGBT K1 to K4 in the inverter shown in Fig. 1 will need to be correspondingly arranged four mistakes respectively Protection module is flowed, the complexity of the drive circuit of bridge switch topology is added and improves production cost.
The content of the invention
In view of the shortcomings of the prior art, it is contemplated that being opened up in providing a kind of bridge switch for solving above-mentioned technical problem The switch tube driving circuit flutterred.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of switch tube driving circuit of bridge switch topology, it includes switch on the bridge pipe drive module, bridge switch pipe Drive module and lower bridge overcurrent protection module；The quantity of switch on the bridge pipe drive module is identical with upper bridge IGBT quantity, lower bridge The quantity of switching tube drive module is identical with lower bridge IGBT quantity, the quantity of lower bridge overcurrent protection module and lower bridge IGBT number Measure identical；
Each switch on the bridge pipe drive module is used to export upper bridge driving voltage extremely according to the gate electrode drive signals of controller Bridge IGBT Q1 gate pole on corresponding one；Each bridge switch pipe drive module is defeated for the gate electrode drive signals according to controller Go out lower bridge driving voltage to corresponding bridge IGBT once gate pole；The upper bridge driving electricity that all switch on the bridge pipe drive modules are exported Press identical, the lower bridge driving voltage that all bridge switch pipe drive modules are exported is identical, and upper bridge driving voltage is more than lower bridge Driving voltage；
It is used for the collection of the corresponding bridge IGBT once of detection in corresponding lower bridge IGBT conductings per bridge overcurrent protection module once Voltage Vce between electrode and emitter stage, and voltage Vce is compared with default threshold voltage, it is more than threshold in voltage Vce During threshold voltage, output overcurrent signal to controller, to cause controller to stop each drive module of driving according to the over-current signal.
Preferably, switch on the bridge pipe drive module and bridge switch pipe drive module use identical circuit structure, upper bridge The supply voltage VC1 of switching tube drive module is more than the supply voltage VC2 of bridge switch pipe drive module.
Preferably, a Switching Power Supply Vs direct voltage outputs are to switch on the bridge pipe drive module；Switching Power Supply Vs is also logical An at least diode D1 output voltages are crossed to bridge switch pipe drive module；The supply voltage VC1 of switch on the bridge pipe drive module As Switching Power Supply Vs output voltage, the output that the power supply VC2 of bridge switch pipe drive module is Switching Power Supply Vs are electric Pressure subtracts the voltage difference of diode D1 pressure drop.
Preferably, switch on the bridge pipe drive module and bridge switch pipe drive module include generating positive and negative voltage converting unit and Switch element；
Generating positive and negative voltage generation unit includes resistance R, voltage-regulator diode Z, electric capacity C1 and electric capacity C2；Voltage-regulator diode Z's is negative Extreme connecting valve power supply Vs one end, voltage-regulator diode Z positive terminal by the resistance R connecting valve power supplys Vs other end, Voltage-regulator diode Z negative pole end also passes sequentially through electric capacity C1 and electric capacity C2 connecting valve power supplys the Vs other end, electric capacity C1 and electricity Hold C2 indirect reference ground；Electric capacity C1 both ends are positive voltage output end, and electric capacity C2 both ends are negative voltage output end；
Switch element includes driving optocoupler, triode TR1, triode TR2, resistance R1 and resistance R2；Drive optocoupler just Power end Vcc connection voltage-regulator diodes Z negative pole end, drive between reference ground Ve the connection electric capacity C1 and electric capacity C2 of optocoupler, Drive the negative power end Vee connecting valve power supplys Vs of the optocoupler other end；Drive optocoupler output end vo connecting triode TR1 and Triode TR2 base stage, also pass through resistance R1 connecting triodes TR1 and triode TR2 emitter stage；Triode TR1 current collection The positive power source terminal Vcc of pole connection driving optocoupler；The negative power end Vee of triode TR2 colelctor electrode connection driving optocoupler；Triode TR1 connects corresponding upper bridge IGBT or lower bridges IGBT gate pole with triode TR2 emitter stage by resistance Rg；
Wherein, the voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop is more than the steady of bridge switch pipe drive module Press diode Z pressure drop.
Preferably, switch on the bridge pipe drive module and bridge switch pipe drive module include generating positive and negative voltage converting unit and Switch element；
Generating positive and negative voltage generation unit includes resistance R, voltage-regulator diode Z, electric capacity C1 and electric capacity C2；Voltage-regulator diode Z's is negative Extreme connecting valve power supply Vs one end, voltage-regulator diode Z positive terminal by the resistance R connecting valve power supplys Vs other end, Voltage-regulator diode Z negative pole end also passes sequentially through electric capacity C1 and electric capacity C2 connecting valve power supplys the Vs other end, electric capacity C1 and electricity Hold C2 indirect reference ground；Electric capacity C1 both ends are positive voltage output end, and electric capacity C2 both ends are negative voltage output end；
Switch element includes driving optocoupler, triode TR1, triode TR2, resistance R1 and resistance R2；Drive optocoupler just Power end Vcc connection voltage-regulator diodes Z negative pole end, drive between reference ground Ve the connection electric capacity C1 and electric capacity C2 of optocoupler, Drive the negative power end Vee connecting valve power supplys Vs of the optocoupler other end；Drive optocoupler output end vo connecting triode TR1 and Triode TR2 base stage, also pass through resistance R1 connecting triodes TR1 and triode TR2 emitter stage；Triode TR1 current collection The positive power source terminal Vcc of pole connection driving optocoupler；The negative power end Vee of triode TR2 colelctor electrode connection driving optocoupler；Triode TR1 connects corresponding upper bridge IGBT or lower bridges IGBT gate pole with triode TR2 emitter stage by resistance Rg；
Wherein, the voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop and the voltage stabilizing of bridge switch pipe drive module Diode Z pressure drop is identical；Also forward direction connects two between the voltage-regulator diode Z and Switching Power Supply Vs of switch on the bridge pipe drive module Pole pipe D2.
Preferably, the generating positive and negative voltage converting unit also includes diode D, triode TR and resistance R2；Diode D is connected to Between voltage-regulator diode Z and resistance R, diode D positive terminal connection voltage-regulator diode Z positive terminal；Triode TR base stage Between connecting diode D and resistance R1, between triode TR emitter stage connection electric capacity C1 and electric capacity C2, triode TR current collection The other end that pole passes through resistance R2 connecting valve power supplys Vs.
Preferably, an optocoupler is connected between each switch on the bridge pipe drive module and controller, each bridge switch pipe drives An optocoupler is connected between dynamic model block and controller, an optocoupler is connected between all lower bridge overcurrent protection modules and controller.
Beneficial effects of the present invention are at least as follows：
The upper bridge driving voltage that the switch on the bridge pipe drive module of the present invention is exported is more than bridge switch pipe drive module The lower bridge driving voltage exported, and then may be such that bridge IGBT and the lower bridge IGBT saturation current that moves back distinguish, so as to true Protect under overcurrent condition, lower bridge IGBT, which is initially entered, moves back saturation state, is further increased with limiting Shang Qiao and lower bridge IGBT electric current Add, and the voltage Vce between lower bridge IGBT collector and emitter continues to raise rapidly, in this way, only passing through lower bridge excessively stream Protection module accurately and reliably detects the overcurrent condition of upper and lower bridge arm, can save the overcurrent protection of half compared with the prior art Module, drive circuit is greatly simplified, reduce production cost, and ensure circuit over-current detection simultaneously accurately and reliably.
Brief description of the drawings
Fig. 1 is the circuit connection diagram of the inverter of prior art.
Fig. 2 is the circuit connection signal of the better embodiment of the switch tube driving circuit of bridge switch of the present invention topology Figure.
Fig. 3 to Fig. 6 is the switch on the bridge pipe drive module or bridge switch pipe drive module of Fig. 2 switch tube driving circuit Circuit connection diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further：
Fig. 2 is referred to, the present invention relates to a kind of switch tube driving circuit of bridge switch topology, its better embodiment bag Include switch on the bridge pipe drive module, bridge switch pipe drive module and lower bridge overcurrent protection module；Switch on the bridge pipe drive module Quantity it is identical with upper bridge IGBT Q1 quantity, the quantity of bridge switch pipe drive module and lower bridge IGBT Q2 quantity phase Together, the quantity of lower bridge overcurrent protection module is identical with lower bridge IGBT Q2 quantity.
Each switch on the bridge pipe drive module is used to export upper bridge driving voltage extremely according to the gate electrode drive signals of controller Bridge IGBT Q1 gate pole on corresponding one；Each bridge switch pipe drive module is defeated for the gate electrode drive signals according to controller Go out lower bridge driving voltage to corresponding bridge IGBT Q1 once gate pole；The upper bridge that all switch on the bridge pipe drive modules are exported drives Dynamic voltage is identical, and the lower bridge driving voltage that all bridge switch pipe drive modules are exported is identical, and upper bridge driving voltage is more than Lower bridge driving voltage.
It is used for the corresponding bridge IGBT Q2 once of detection in corresponding lower bridge IGBT conductings per bridge overcurrent protection module once Voltage Vce between colelctor electrode and emitter stage, and voltage Vce is compared with default threshold voltage, it is more than in voltage Vce During threshold voltage, output overcurrent signal to controller, to cause controller to stop each drive module of driving according to the over-current signal. When IGBT is closed, lower bridge overcurrent protection module does not produce protection act.
It should be noted that any one lower bridge overcurrent protection module all can output overcurrent letter when detecting lower bridge IGBT excessively streams Number to controller.
The upper bridge driving voltage that the switch on the bridge pipe drive module of the present invention is exported is more than bridge switch pipe drive module The lower bridge driving voltage exported, and then may be such that bridge IGBT and the lower bridge IGBT saturation current that moves back distinguish, so as to true Protect under overcurrent condition, lower bridge IGBT, which is initially entered, moves back saturation state, is further increased with limiting Shang Qiao and lower bridge IGBT electric current Add, and the voltage Vce between lower bridge IGBT collector and emitter continues to raise rapidly, in this way, only passing through lower bridge excessively stream Protection module accurately and reliably detects the overcurrent condition of upper and lower bridge arm, can save the overcurrent protection of half compared with the prior art Module, drive circuit is greatly simplified, reduce production cost, and ensure circuit over-current detection simultaneously accurately and reliably.
In the present embodiment, the supply voltage VC1 of switch on the bridge pipe drive module is more than the confession of bridge switch pipe drive module Piezoelectric voltage VC2, in this way, when IGBT turns off without negative pressure in the case of, switch on the bridge pipe drive module and bridge switch pipe driving Module can use identical circuit structure, and realize the different driving voltage of output extremely by loading different supply voltages IGBT, further to simplify driving circuit structure.
Referring to Fig. 3, it is preferable that a Switching Power Supply Vs direct voltage outputs to switch on the bridge pipe drive module；Switch electricity Source Vs also passes through an at least diode D1 output voltages to bridge switch pipe drive module；The power supply of switch on the bridge pipe drive module Voltage VC1 is Switching Power Supply Vs output voltage, and the supply voltage VC2 of bridge switch pipe drive module is Switching Power Supply Vs's Output voltage subtracts the voltage difference of diode D1 pressure drop.Supply voltage can be set by adjusting diode D1 quantity VC2。
Referring to Fig. 4, in the case of negative pressure being present when IGBT is turned off, switch on the bridge pipe drive module and bridge switch pipe drive Dynamic model block includes generating positive and negative voltage converting unit and switch element.
Generating positive and negative voltage generation unit includes resistance R, voltage-regulator diode Z, electric capacity C1 and electric capacity C2.Voltage-regulator diode Z's is negative Extreme connecting valve power supply Vs one end, voltage-regulator diode Z positive terminal by the resistance R connecting valve power supplys Vs other end, Voltage-regulator diode Z negative pole end also passes sequentially through electric capacity C1 and electric capacity C2 connecting valve power supplys the Vs other end, electric capacity C1 and electricity Hold C2 indirect reference ground.Electric capacity C1 both ends are positive voltage output end, and electric capacity C2 both ends are negative voltage output end.
Switch element includes driving optocoupler, triode TR1, triode TR2, resistance R1 and resistance R2.Drive optocoupler just Power end Vcc connection voltage-regulator diodes Z negative pole end, drive between reference ground Ve the connection electric capacity C1 and electric capacity C2 of optocoupler, Drive the negative power end Vee connecting valve power supplys Vs of the optocoupler other end；Drive optocoupler output end vo connecting triode TR1 and Triode TR2 base stage, also pass through resistance R1 connecting triodes TR1 and triode TR2 emitter stage；Triode TR1 current collection The positive power source terminal Vcc of pole connection driving optocoupler；The negative power end Vee of triode TR2 colelctor electrode connection driving optocoupler.Triode TR1 connects corresponding upper bridge IGBT or lower bridges IGBT gate pole with triode TR2 emitter stage by resistance Rg.
When triode TR1 is turned on, electric capacity C1 voltage is by driving optocoupler and triode TR1 to load on IGBT gate pole On；When triode TR2 is turned on, electric capacity C2 voltage is by driving optocoupler and triode TR2 to load on IGBT gate pole.
Referring to Fig. 5, it is preferable that be also to include diode D, three suitable for high-power driving, the generating positive and negative voltage converting unit Pole pipe TR and resistance R2；Diode D is connected between voltage-regulator diode Z and resistance R, diode D positive terminal connection voltage stabilizing two Pole pipe Z positive terminal；Between triode TR base stage connection diode D and resistance R1, triode TR emitter stage connection electric capacity Between C1 and electric capacity C2, the other end that triode TR colelctor electrode passes through resistance R2 connecting valve power supplys Vs.
The voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop is more than the pole of voltage stabilizing two of bridge switch pipe drive module Pipe Z pressure drop, to realize Shang Qiao and lower bridge IGBT variance drive.
Referring to Fig. 6, in other embodiments, the voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop is opened with lower bridge Close the identical of pipe drive module, but the positive series diode D2 between voltage-regulator diode Z and Switching Power Supply Vs；Forward direction series connection Diode D2 is that Switching Power Supply Vs electric current from diode D2 anode flow to diode D2 negative electrode.Diode D2 quantity can For one or more, to realize Shang Qiao and the variance drive voltage of lower bridge IGBT difference voltage differences.
To realize interference signal and security isolation effect, one is connected between each switch on the bridge pipe drive module and controller Optocoupler, an optocoupler, all lower bridge overcurrent protection modules and control are connected between each bridge switch pipe drive module and controller An optocoupler is connected between device.Due to the common negative busbar of lower bridge IGBT emitter stage, therefore, each lower bridge overcurrent protection module can share a light Coupling, further to simplify circuit.
For those skilled in the art, technical scheme that can be as described above and design, make other each Kind is corresponding to be changed and deforms, and all these change and deformed the protection model that should all belong to the claims in the present invention Within enclosing.

Claims (6)

  1. A kind of 1. switch tube driving circuit of bridge switch topology, it is characterised in that：It include switch on the bridge pipe drive module, under Bridge switch pipe drive module and lower bridge overcurrent protection module；The quantity of switch on the bridge pipe drive module and upper bridge IGBT quantity phase Together, the quantity of bridge switch pipe drive module is identical with lower bridge IGBT quantity, the quantity of lower bridge overcurrent protection module and lower bridge IGBT quantity is identical；
    Each switch on the bridge pipe drive module is used to export bridge driving voltage to correspondingly according to the gate electrode drive signals of controller Bridge IGBT gate pole on one；Each bridge switch pipe drive module is used to export lower bridge drive according to the gate electrode drive signals of controller Voltage is moved to corresponding bridge IGBT once gate pole；The upper bridge driving voltage that all switch on the bridge pipe drive modules are exported is identical, The lower bridge driving voltage that all bridge switch pipe drive modules are exported is identical, and upper bridge driving voltage is more than lower bridge driving electricity Pressure；
    It is used for the colelctor electrode and hair that the lower bridge IGBT is detected in corresponding lower bridge IGBT conductings per bridge overcurrent protection module once Voltage Vce between emitter-base bandgap grading, and voltage Vce is compared with default threshold voltage, it is more than threshold voltage in voltage Vce When, output overcurrent signal to controller, to cause controller to stop each drive module of driving according to the over-current signal.
  2. 2. the switch tube driving circuit of bridge switch topology as claimed in claim 1, it is characterised in that：Switch on the bridge pipe drives Module and bridge switch pipe drive module use identical circuit structure, and the supply voltage VC1 of switch on the bridge pipe drive module is big In the supply voltage VC2 of bridge switch pipe drive module.
  3. 3. the switch tube driving circuit of bridge switch topology as claimed in claim 2, it is characterised in that：One Switching Power Supply Vs is straight Output voltage is connect to switch on the bridge pipe drive module；Switching Power Supply Vs also passes through an at least diode D1 output voltages to lower bridge Switching tube drive module；The supply voltage VC1 of switch on the bridge pipe drive module is Switching Power Supply Vs output voltage, and lower bridge is opened The power supply VC2 for closing pipe drive module is the voltage difference that Switching Power Supply Vs output voltage subtracts diode D1 pressure drop.
  4. 4. the switch tube driving circuit of bridge switch topology as claimed in claim 1, it is characterised in that：Switch on the bridge pipe drives Module and bridge switch pipe drive module include generating positive and negative voltage converting unit and switch element；
    Generating positive and negative voltage converting unit includes resistance R, voltage-regulator diode Z, electric capacity C1 and electric capacity C2；Voltage-regulator diode Z negative pole end Connecting valve power supply Vs one end, voltage-regulator diode Z positive terminal pass through the resistance R connecting valve power supplys Vs other end, voltage stabilizing Diode Z positive terminal is connected between electric capacity C1 and electric capacity C2, voltage-regulator diode Z negative pole end also pass sequentially through electric capacity C1 and The electric capacity C2 connecting valve power supplys Vs other end, electric capacity C1 and electric capacity C2 indirect reference ground；Electric capacity C1 both ends are positive electricity Output end is pressed, electric capacity C2 both ends are negative voltage output end；
    Switch element includes driving optocoupler, triode TR1, triode TR2, resistance R1 and resistance Rg；Drive the positive supply of optocoupler Vcc connection voltage-regulator diodes Z negative pole end is held, is driven between reference ground Ve the connection electric capacity C1 and electric capacity C2 of optocoupler, is driven The negative power end Vee connecting valve power supplys Vs of the optocoupler other end；Drive output end vo connecting triode TR1 and three poles of optocoupler Pipe TR2 base stage, also pass through resistance R1 connecting triodes TR1 and triode TR2 emitter stage；Triode TR1 colelctor electrode connects Meet the positive power source terminal Vcc of driving optocoupler；The negative power end Vee of triode TR2 colelctor electrode connection driving optocoupler；Triode TR1 Corresponding upper bridge IGBT or lower bridges IGBT gate pole is connected by resistance Rg with triode TR2 emitter stage；
    Wherein, the voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop is more than the voltage stabilizing two of bridge switch pipe drive module Pole pipe Z pressure drop.
  5. 5. the switch tube driving circuit of bridge switch topology as claimed in claim 1, it is characterised in that：Switch on the bridge pipe drives Module and bridge switch pipe drive module include generating positive and negative voltage converting unit and switch element；
    Generating positive and negative voltage converting unit includes resistance R, voltage-regulator diode Z, electric capacity C1 and electric capacity C2；Voltage-regulator diode Z negative pole end Connecting valve power supply Vs one end, voltage-regulator diode Z positive terminal pass through the resistance R connecting valve power supplys Vs other end, voltage stabilizing Diode Z positive terminal is connected between electric capacity C1 and electric capacity C2, voltage-regulator diode Z negative pole end also pass sequentially through electric capacity C1 and The electric capacity C2 connecting valve power supplys Vs other end,
    Electric capacity C1 and electric capacity C2 indirect reference ground；Electric capacity C1 both ends are positive voltage output end, and electric capacity C2 both ends are Negative voltage output end；
    Switch element includes driving optocoupler, triode TR1, triode TR2, resistance R1 and resistance Rg；Drive the positive supply of optocoupler Vcc connection voltage-regulator diodes Z negative pole end is held, is driven between reference ground Ve the connection electric capacity C1 and electric capacity C2 of optocoupler, is driven The negative power end Vee connecting valve power supplys Vs of the optocoupler other end；Drive output end vo connecting triode TR1 and three poles of optocoupler Pipe TR2 base stage, also pass through resistance R1 connecting triodes TR1 and triode TR2 emitter stage；Triode TR1 colelctor electrode connects Meet the positive power source terminal Vcc of driving optocoupler；The negative power end Vee of triode TR2 colelctor electrode connection driving optocoupler；Triode TR1 Corresponding upper bridge IGBT or lower bridges IGBT gate pole is connected by resistance Rg with triode TR2 emitter stage；
    Wherein, the voltage-regulator diode Z of switch on the bridge pipe drive module pressure drop and the pole of voltage stabilizing two of bridge switch pipe drive module Pipe Z pressure drop is identical；Also positive series diode between the voltage-regulator diode Z and Switching Power Supply Vs of switch on the bridge pipe drive module D2。
  6. 6. the switch tube driving circuit of bridge switch topology as claimed in claim 1, it is characterised in that：Each switch on the bridge pipe An optocoupler is connected between drive module and controller, an optocoupler is connected between each bridge switch pipe drive module and controller, An optocoupler is connected between all lower bridge overcurrent protection modules and controller.
CN201410853310.8A 2014-12-30 2014-12-30 The switch tube driving circuit of bridge switch topology Active CN104467379B (en)

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CN107547031B (en) * 2017-10-11 2023-11-21 珠海英搏尔电气股份有限公司 H-bridge driving circuit of electric vehicle controller, controller and electric vehicle
CN108270423B (en) * 2018-01-26 2021-05-25 广东美的制冷设备有限公司 Driving protection circuit of IGBT module and air conditioner
CN108566112B (en) * 2018-04-20 2019-06-18 东北大学 A kind of three-level current transformer driving circuit with negative pressure bootstrapping
CN108512404A (en) * 2018-04-26 2018-09-07 浙江大维高新技术股份有限公司 A kind of upper half-bridge drive circuit
CN108539962A (en) * 2018-04-27 2018-09-14 浙江大维高新技术股份有限公司 A kind of integrated elevator variable frequency device
CN109818487B (en) * 2019-02-03 2021-03-16 大悦创新（苏州）医疗科技股份有限公司 H-bridge circuit and neuromuscular electrical stimulation device with same
CN111585500A (en) * 2020-06-22 2020-08-25 广东省大湾区集成电路与系统应用研究院 Control method, device and equipment of power module and power equipment

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CN102957133A (en) * 2012-10-24 2013-03-06 上海神源电气有限公司 IGBT (Insulated Gate Bipolar Translator) over-current withdraw protection circuit of frequency converter
CN202957797U (en) * 2012-11-14 2013-05-29 郭优花 Grid electrode improved IGBT (Isolated Gate Bipolar Transistor) drive circuit
CN104052443A (en) * 2013-03-11 2014-09-17 株式会社电装 Gate drive circuit

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CN101399491A (en) * 2007-11-06 2009-04-01 中国科学院电工研究所 Overcurrent protection circuit for photovoltaic DC-to-AC converter
CN102957133A (en) * 2012-10-24 2013-03-06 上海神源电气有限公司 IGBT (Insulated Gate Bipolar Translator) over-current withdraw protection circuit of frequency converter
CN202957797U (en) * 2012-11-14 2013-05-29 郭优花 Grid electrode improved IGBT (Isolated Gate Bipolar Transistor) drive circuit
CN104052443A (en) * 2013-03-11 2014-09-17 株式会社电装 Gate drive circuit

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