CN202309494U - Bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors - Google Patents
Bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors Download PDFInfo
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- CN202309494U CN202309494U CN201120340254XU CN201120340254U CN202309494U CN 202309494 U CN202309494 U CN 202309494U CN 201120340254X U CN201120340254X U CN 201120340254XU CN 201120340254 U CN201120340254 U CN 201120340254U CN 202309494 U CN202309494 U CN 202309494U
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Abstract
The utility model discloses a bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors, which comprises a power supply, a bridge driving module, a voltage stabilizing module, a power-on reset module, a phase opposition module, a metal oxide semiconductor (MOS) pipe driving module and bootstrap capacitors C1 and C2. The bridge driving module and the voltage stabilizing module are connected with the power supply, and the voltage stabilizing module, the power-on reset module and the phase opposition module are connected with the MOS pipe driving module sequentially. A switching pipe is connected between the MOS pipe driving module and the bridge driving module, and the bootstrap capacitors C1 and C2 are connected in parallel to be connected between two wiring pins of the bridge driving module. The bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors can guarantee reliable charging to the bootstrap capacitors and enables a whole circuit to work normally.
Description
Technical field
The utility model relates to a kind of bridge drive circuit, particularly a kind of bridge drive circuit high-pressure side suspension bootstrap capacitor pre-charging device.
Background technology
Since American I R company has released IR2110 bridge-type power structure integrated drive electronics; The bootstrap type integrated circuit that this bridge-type power circuit that is suitable for being made up of MOSFET, IGBT drives has obtained to use widely in power conversion, motor speed governing constant power driving field; Especially go up pipe and drive the outside bootstrap capacitor C1 of employing, C2 power supply, make driving power way order drive and reduce greatly than other IC.But therefore also brought new problem, used bootstrap capacitor, required bootstrap capacitor C1, C2 to be full of earlier last brachium pontis drive circuitry; Circuit ability operate as normal; Though under the normal condition, the IR2110 integrated drive electronics can be accomplished the charging work to bootstrap capacitor,, drive signal distortion unusual, interference etc. at some special circumstances such as circuit supply; Can cause bootstrap capacitor C1, the C2 situation such as not enough that occurs not charging or charging, influence the operate as normal of circuit.
Summary of the invention
The purpose of the utility model just is to provide a kind of bridge drive circuit high-pressure side suspension bootstrap capacitor pre-charging device, guarantees reliably bootstrap capacitor to be charged, and makes the entire circuit operate as normal.
To achieve these goals; The technical scheme that the utility model adopts is such: the bridge drive circuit high-pressure side suspension bootstrap capacitor pre-charging device of the utility model; Comprise power supply, bridge-type driver module, Voltage stabilizing module, electrification reset module, anti-phase module, metal-oxide-semiconductor driver module and bootstrap capacitor C1, C2; The bridge-type driver module is connected with power supply with Voltage stabilizing module; Voltage stabilizing module, electrification reset module, anti-phase module and metal-oxide-semiconductor driver module are connected successively, are connected a switching tube between metal-oxide-semiconductor driver module and the bridge-type driver module, are connected after said bootstrap capacitor C1, the C2 parallel connection between two leg of bridge-type driver module.
Further, said bridge-type driver module is IR2110 or GR8853 bridge-type drive integrated circult.
Further again; Said MOS driver module is made up of two triode Q3, Q4 and two resistance R 4, R5; Connect with resistance R 4 in the base stage of two triode Q3, the Q4 back that links together; And then be connected with the collector electrode of the triode Q2 of anti-phase module, the collector electrode of triode Q3 is connected with the collector electrode of triode Q4, and the emitter of triode Q3 is connected with the emitter of the triode Q5 of anti-phase module; The emitter of triode Q4 is connected with switching tube, and resistance R 5 is connected between the emitter and base stage of triode Q3.
Further; Said anti-phase module is made up of two triode Q2, Q5 and two resistance R 3, R6; The base stage of triode Q5 is connected with two leg of electrification reset module with collector electrode; The collector electrode of triode Q5 connects the base stage of triode Q2, and the collector electrode of triode Q2 is connected with the resistance R 4 of MOS driver module, emitter and MOS driver module the emitter of triode Q4 be connected; Resistance R 3 is connected between the base stage and emitter of triode Q5, and resistance R 6 is connected between the base stage and emitter of triode Q2.
Compared with prior art, the advantage of the utility model is: through installing the charging circuit to bootstrap capacitor additional, guarantee the charging to bootstrap capacitor, guarantee bridge-type power circuit ability operate as normal; Because bridge-type power circuit power output is big, conversion efficiency is high; Extensive application is in occasions such as power circuit, motor-driven; In occasions such as locomotive drive, diving driving, aircraft; Requirement to reliability is very high, does not allow avoidable anything unexpected to occur, and the utility model can improve its reliability.
Description of drawings
Fig. 1 is the functional block diagram of the utility model;
Fig. 2 is the circuit diagram of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
Referring to Fig. 1 and Fig. 2; The bridge drive circuit high-pressure side suspension bootstrap capacitor pre-charging device of the utility model; Comprise power supply, bridge-type driver module, Voltage stabilizing module, electrification reset module, anti-phase module, metal-oxide-semiconductor driver module and bootstrap capacitor C1, C2; The bridge-type driver module is connected with power supply with Voltage stabilizing module, and Voltage stabilizing module, electrification reset module, anti-phase module and metal-oxide-semiconductor driver module are connected successively, is connected a switching tube between metal-oxide-semiconductor driver module and the bridge-type driver module; Be connected after said bootstrap capacitor C1, the C2 parallel connection between two leg of bridge-type driver module, said bridge-type driver module is IR2110 or GR8853 bridge-type drive integrated circult.
Said MOS driver module is made up of two triode Q3, Q4 and two resistance R 4, R5; Connect with resistance R 4 in the base stage of two triode Q3, the Q4 back that links together; And then be connected with the collector electrode of the triode Q2 of anti-phase module, the collector electrode of triode Q3 is connected with the collector electrode of triode Q4, and the emitter of triode Q3 is connected with the emitter of the triode Q5 of anti-phase module; The emitter of triode Q4 is connected with switching tube, and resistance R 5 is connected between the emitter and base stage of triode Q3.
Said anti-phase module is made up of two triode Q2, Q5 and two resistance R 3, R6; The base stage of triode Q5 is connected with two leg of electrification reset module with collector electrode; The collector electrode of triode Q5 connects the base stage of triode Q2, and the collector electrode of triode Q2 is connected with the resistance R 4 of MOS driver module, emitter and MOS driver module the emitter of triode Q4 be connected; Resistance R 3 is connected between the base stage and emitter of triode Q5, and resistance R 6 is connected between the base stage and emitter of triode Q2; Also connect a capacitor C 9 on the anti-phase module, capacitor C 9 is parallelly connected with resistance R 6, and capacitor C9 increased to prolong the charging interval when not enough in the charging interval.
Power Vcc get electric after, the one tunnel supplies the bridge-type driver module, pre-charge module is held in another road power supply; Supply pre-charge module one tunnel, behind Voltage stabilizing module, provide reset, module work such as anti-phase, driving, the electrification reset module get electric after; Produce a low level pulse signal, after the anti-phase module, send the metal-oxide-semiconductor driver module, by metal-oxide-semiconductor driver module driving switch pipe; Switching tube is pulled down to ground with bootstrap capacitor C1, C2, makes bootstrap capacitor accomplish precharge.
Claims (4)
1. bridge drive circuit high-pressure side suspension bootstrap capacitor pre-charging device; It is characterized in that: comprise power supply, bridge-type driver module, Voltage stabilizing module, electrification reset module, anti-phase module, metal-oxide-semiconductor driver module and bootstrap capacitor C1, C2; The bridge-type driver module is connected with power supply with Voltage stabilizing module; Voltage stabilizing module, electrification reset module, anti-phase module and metal-oxide-semiconductor driver module are connected successively; Be connected a switching tube between metal-oxide-semiconductor driver module and the bridge-type driver module, be connected after said bootstrap capacitor C1, the C2 parallel connection between two leg of bridge-type driver module.
2. bridge drive circuit according to claim 1 high-pressure side suspension bootstrap capacitor pre-charging device is characterized in that: said bridge-type driver module is IR2110 or GR8853 bridge-type drive integrated circult.
3. bridge drive circuit according to claim 1 high-pressure side suspension bootstrap capacitor pre-charging device; It is characterized in that: said MOS driver module is made up of two triode Q3, Q4 and two resistance R 4, R5; Connect with resistance R 4 in the base stage of two triode Q3, the Q4 back that links together; And then be connected with the collector electrode of the triode Q2 of anti-phase module, the collector electrode of triode Q3 is connected with the collector electrode of triode Q4, and the emitter of triode Q3 is connected with the emitter of the triode Q5 of anti-phase module; The emitter of triode Q4 is connected with switching tube, and resistance R 5 is connected between the emitter and base stage of triode Q3.
4. bridge drive circuit according to claim 1 high-pressure side suspension bootstrap capacitor pre-charging device; It is characterized in that: said anti-phase module is made up of two triode Q2, Q5 and two resistance R 3, R6; The base stage of triode Q5 is connected with two leg of electrification reset module with collector electrode; The collector electrode of triode Q5 connects the base stage of triode Q2, and the collector electrode of triode Q2 is connected with the resistance R 4 of MOS driver module, emitter and MOS driver module the emitter of triode Q4 be connected; Resistance R 3 is connected between the base stage and emitter of triode Q5, and resistance R 6 is connected between the base stage and emitter of triode Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340254XU CN202309494U (en) | 2011-09-13 | 2011-09-13 | Bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340254XU CN202309494U (en) | 2011-09-13 | 2011-09-13 | Bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors |
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| Publication Number | Publication Date |
|---|---|
| CN202309494U true CN202309494U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120340254XU Expired - Fee Related CN202309494U (en) | 2011-09-13 | 2011-09-13 | Bridge driving circuit high voltage side suspension pre-charging device for bootstrap capacitors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972496A (en) * | 2016-10-21 | 2018-05-01 | 蔚来汽车有限公司 | Electric vehicle dynamic cell pre-fill system and device |
| CN109194117A (en) * | 2018-08-27 | 2019-01-11 | 矽力杰半导体技术(杭州)有限公司 | Multiple-channel output power inverter and its control method |
| CN113541249A (en) * | 2021-07-09 | 2021-10-22 | 旋智电子科技（上海）有限公司 | Circuit device for realizing charging path control based on pre-driving module and electronic equipment |
-
2011
- 2011-09-13 CN CN201120340254XU patent/CN202309494U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972496A (en) * | 2016-10-21 | 2018-05-01 | 蔚来汽车有限公司 | Electric vehicle dynamic cell pre-fill system and device |
| CN107972496B (en) * | 2016-10-21 | 2021-12-10 | 蔚来(安徽)控股有限公司 | Pre-charging system and device for power battery of electric vehicle |
| CN109194117A (en) * | 2018-08-27 | 2019-01-11 | 矽力杰半导体技术(杭州)有限公司 | Multiple-channel output power inverter and its control method |
| CN113541249A (en) * | 2021-07-09 | 2021-10-22 | 旋智电子科技（上海）有限公司 | Circuit device for realizing charging path control based on pre-driving module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140913 |
|
| EXPY | Termination of patent right or utility model |