CN203278779U - Drive circuit of switching element - Google Patents
Drive circuit of switching element Download PDFInfo
- Publication number
- CN203278779U CN203278779U CN 201320263298 CN201320263298U CN203278779U CN 203278779 U CN203278779 U CN 203278779U CN 201320263298 CN201320263298 CN 201320263298 CN 201320263298 U CN201320263298 U CN 201320263298U CN 203278779 U CN203278779 U CN 203278779U
- Authority
- CN
- China
- Prior art keywords
- triode
- output
- resistance
- module
- switching device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a drive circuit of a switching element. The circuit comprises a signal isolation module, a push-pull amplification module and an output module. The signal isolation module is used for receiving and isolating an input signal and generating a first output signal. The push-pull amplification module is used for amplifying the first output signal, and the input end of the push-pull amplification module is connected with the output end of the signal isolation module. The output module is used for generating and outputting a second output signal according to the amplified first output signal, the input end of the output module is connected with the output end of the push-pull amplification module, the output end of the output module is connected with the switching element. The push-pull amplification module is controlled by the first output signal to provide a positive power supply or a negative power supply for the output module. The drive circuit enables bipolar power supply. The switching element is driven to be turned on and off by bipolar voltage, so that anti-interference bandwidth in a turn-off process is increased, mistaken turn-on is prevented, and anti-interference capability of the switching element is improved.
Description
Technical field
The utility model relates to electric and electronic technical field, particularly a kind of drive circuit of switching device.
Background technology
existing IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) driving circuit structure generally as shown in Figure 1, it realizes that principle is: first input signal is amplified, this part is completed by resistance R 1' and triode Q21, then signal passes through push-pull circuit again, comprise resistance R 22, resistance R 23, triode Q22, triode Q23 element, can be with input 0～5V square wave switching signal conversion 0～VCC square wave switching signal through these circuit, this signal is through output circuit, comprise resistance R 32, resistance R 33 elements, can directly drive IGBT, can certainly driven MOS (Metal Oxide Semiconductor, metal-oxide semiconductor (MOS)) pipe waits switch element.But the problem that exists by this kind drives IGBT is: owing to being the unipolarity driving power, adopt positive supply when opening IGBT, during shutoff, IGBT is 0 level.If during shutoff between the gate pole of IGBT and emitter or ground wire be interfered, no longer 0V between the gate pole of IGBT and emitter at this moment, might jump to even more high voltage of 8V, 10V, it is logical that will cause IGBT to open by mistake this moment, circuit for generating is out of control, causes and damages IGBT or other system element, makes the fraction defective of IGBT higher, design defect causes Quality Accident, and the reliability of system is not high.
The utility model content
The purpose of this utility model is intended to solve the problems of the technologies described above at least.
For this reason, the purpose of this utility model is to propose a kind of drive circuit of switching device, can avoid opening by mistake the switching devices such as logical IGBT, metal-oxide-semiconductor, reduces the fraction defective of switching device, improves the reliability of system.
For achieving the above object, the utility model proposes a kind of drive circuit of switching device, comprising: the signal isolation module that is used for receiving input signal and described input signal is isolated to generate the first output signal; For the amplification module of recommending that described the first output signal is amplified, described input of recommending amplification module is connected with the output of described signal isolation module; Generate the go forward side by side output module of line output of the second output signal according to the first output signal after amplifying, the input of described output module is connected with described output of recommending amplification module, the output of described output module is connected with described switching device, wherein, the described amplification module of recommending offers described output module positive supply or negative supply under the control of described the first output signal.
drive circuit according to the switching device that the utility model proposes, recommending amplification module by the first output signal control of signal isolation module output provides positive supply or negative supply to switching device, realize the bipolar power supply power supply, by turning on and off of bipolar voltage driving switch device, can adopt positive voltage when opening, adopt negative voltage during shutoff, make switching device jamproof bandwidth when turn-offing increase, thereby avoid opening by mistake the logical antijamming capability that has effectively improved switching device, stopcock device reliably, reduced the fraction defective of switching device, extended the useful life of switching device, improved the reliability of using the product of switching device.
Wherein, described signal isolation module comprises: the first resistance, and an end of described the first resistance is as the receiving terminal that receives described input signal; Photoelectrical coupler, the positive terminal of the diode in described photoelectrical coupler is connected with the other end of described the first resistance, the negative pole end ground connection of the diode in described photoelectrical coupler, the collector electrode of the triode in described photoelectrical coupler is as the output of described the first output signal of output, and the emitter of the triode in described photoelectrical coupler is connected with the first power supply.
Perhaps, described signal isolation module comprises: the second resistance, and an end of described the second resistance is as the receiving terminal that receives described input signal; The first triode, the base stage of described the first triode is connected with the other end of described the second resistance, the grounded emitter of described the first triode; Transformer, input one end of described transformer is connected with second source, and the input other end of described transformer is connected with the collector electrode of described the first triode, and output one end of described transformer is connected with the first power supply; The 3rd resistance, an end of described the 3rd resistance is connected with the output other end of described transformer; The second triode, the base stage of described the second triode is connected with the other end of described the 3rd resistance, and the collector electrode of described the second triode is as the output of described the first output signal of output, and the emitter of described the second triode is connected with described the first power supply.
Preferably, the described amplification module of recommending comprises: the 4th resistance, and an end of described the 4th resistance is connected with the output of described the first output signal, the other end ground connection of described the 4th resistance; The 3rd triode, the base stage of described the 3rd triode is connected with an end of described the 4th resistance, and the emitter of described the 3rd triode is connected with described the first power supply; The 5th resistance, an end of described the 5th resistance is connected with the collector electrode of described the 3rd triode, and the other end of described the 5th resistance is connected with second source; The 6th resistance, an end of described the 6th resistance is connected with described second source; The 4th triode, the collector electrode of described the 4th triode is connected with the other end of described the 6th resistance, and the base stage of described the 4th triode is connected with the collector electrode of described the 3rd triode and an end of described the 5th resistance respectively; The 5th triode, the base stage of described the 5th triode is connected with the base stage of described the 4th triode and the collector electrode of described the 3rd triode respectively, the collector electrode of described the 5th triode is connected with described the first power supply, the emitter of described the 5th triode is connected with the emitter of described the 4th triode, have first node between the emitter of the emitter of described the 5th triode and described the 4th triode, described first node is as described output of recommending amplification module.
Preferably, described output module comprises: the 7th resistance and the 8th resistance, one end of described the 7th resistance is connected with described first node, the other end of described the 7th resistance is connected with an end of described the 8th resistance, the other end of described the 8th resistance is connected with described the first power supply, have Section Point between described the 7th resistance and described the 8th resistance, described Section Point is as the output of described the second output signal of described output module output.
Preferably, described Section Point is connected with described switching device, and described output module is controlled opening or turn-offing of described switching device by described the second output signal of described Section Point output.
Wherein, the voltage of described negative supply can for-15V～-0.1V.
Preferably, described switching device is IGBT or metal-oxide-semiconductor.And when described switching device was IGBT, the voltage of described negative supply was-10V～-5V.
The aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or the additional aspect of the utility model and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is the structural representation of existing IGBT drive circuit;
Fig. 2 is the structural representation according to the drive circuit of the switching device of an embodiment of the utility model; And
Fig. 3 is the structural representation according to the drive circuit of the switching device of another embodiment of the utility model.
Reference numeral:
Resistance R 1 ', resistance R 22, resistance R 23, resistance R 32, resistance R 33, triode Q21, triode Q22, triode Q23; Signal isolation module 100, recommend amplification module 200, output module 300, the first resistance R 1～the 8th resistance R 8, the first triode Q1～the 5th triode Q5, photoelectrical coupler 10, transformer 20, first node A and Section Point B, the first power supply VEE, second source VCC, switching device 400, gate pole G, emitter E and collector electrode C.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explanation the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is separately arranged.
In the utility model, unless clear and definite regulation and restriction are separately arranged, broad understanding should be done in the terms such as term " installation ", " being connected ", " connection ", " fixing ", for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
With reference to following description and accompanying drawing, with these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiment of the present utility model, represent to implement some modes of the principle of embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises spirit and interior all changes, modification and the equivalent of intension scope that falls into additional claims.
The drive circuit of the switching device that with reference to the accompanying drawings the utility model embodiment is proposed is described.Fig. 2 is the structural representation according to the drive circuit of the switching device of an embodiment of the utility model, and Fig. 3 is the structural representation according to the drive circuit of the switching device of another embodiment of the utility model.
As Fig. 2 or shown in Figure 3, the drive circuit of the switching device of the utility model embodiment comprises: signal isolation module 100, recommend amplification module 200 and output module 300.Signal isolation module 100 is used for receiving input signal and input signal being isolated to generate the first output signal, the input of recommending amplification module 200 is connected with the output of signal isolation module 100, recommending amplification module 200 is used for the first output signal is amplified, the input of output module 300 is connected with the output of recommending amplification module 200, the output of output module 300 and switching device 400 for example IGBT are connected, and output module 300 generates the second output signal according to first output signal of amplifying and goes forward side by side line output to switching device 400.Wherein, recommend amplification module 200 and generate bipolar power supply power under the control of the first output signal, namely offer output module 300 positive supplies or negative supply.
In embodiment of the present utility model, input signal can be 0～5V square wave switching signal, signal isolation module 100 receives 0～5V square wave switching signal and generates the first output signal, signal isolation module 100 can separate input signal with output signal, interference can be isolated, thereby play the effect that improves antijamming capability, in addition, input signal and output signal are isolated conversion and are beneficial to the voltage separate design, make power-supply system simple and reliable.Recommend amplification module 200 and convert 0～5V square wave switching signal to 15V or 18V square wave switching signal, complete the voltage amplification effect, and the generation bipolar power supply is powered under the control of the first output signal.Output module 300 is according to first output signal output the second output signal driving switch device 400 after amplifying.
In an embodiment of the present utility model, as shown in Figure 2, signal isolation module 100 comprises the first resistance R 1 and photoelectrical coupler 10.Wherein, one end of the first resistance R 1 is as the receiving terminal that receives input signal, the positive terminal of the diode in photoelectrical coupler 10 is connected with the other end of the first resistance R 1, the negative pole end ground connection of the diode in photoelectrical coupler 10, the collector electrode of the triode in photoelectrical coupler 10 is as the output of output the first output signal, and the emitter of the triode in photoelectrical coupler 10 is connected with the first power supply VEE.
In an embodiment of the present utility model, as shown in Figure 2, recommend amplification module 200 and comprise the 4th resistance R 4, the 3rd triode Q3, the 5th resistance R 5, the 6th resistance R 6, the 4th triode Q4 and the 5th triode Q5.Wherein, an end of the 4th resistance R 4 is connected with the output of the first output signal, the other end ground connection of the 4th resistance R 4; The base stage of the 3rd triode Q3 is connected with an end of the 4th resistance R 4, and the emitter of the 3rd triode Q3 is connected with the first power supply VEE; One end of the 5th resistance R 5 is connected with the collector electrode of the 3rd triode Q3, and the other end of the 5th resistance R 5 is connected with second source VCC; One end of the 6th resistance R 6 is connected with second source VCC; The collector electrode of the 4th triode Q4 is connected with the other end of the 6th resistance R 6, and the base stage of the 4th triode Q4 is connected with the collector electrode of the 3rd triode Q3 and an end of the 5th resistance R 5 respectively; The base stage of the 5th triode Q5 is connected with the base stage of the 4th triode Q4 and the collector electrode of the 3rd triode Q3 respectively, the collector electrode of the 5th triode Q5 is connected with the first power supply VEE, the emitter of the 5th triode Q5 is connected with the emitter of the 4th triode Q4, have first node A between the emitter of the emitter of the 5th triode Q5 and the 4th triode Q4, first node A is as the output of recommending amplification module 200.
In an embodiment of the present utility model, as shown in Figure 2, output module 300 comprises the 7th resistance R 7 and the 8th resistance R 8.One end of the 7th resistance R 7 is connected with first node A, the other end of the 7th resistance R 7 is connected with an end of the 8th resistance R 8, the other end of the 8th resistance R 8 is connected with the first power supply VEE, have Section Point B between the 7th resistance R 7 and the 8th resistance R 8, Section Point B is as the output of output module 300 output the second output signals.
In an embodiment of the present utility model, as shown in Figure 2, Section Point B is connected with switching device 400, and output module 300 being opened or turn-offing by Section Point B output the second output signal control switch device 400.Wherein, switching device 400 can be the switchable semiconductor devices such as IGBT or metal-oxide-semiconductor.
In a concrete example of the present utility model, as shown in Figure 2, switching device 400 is IGBT.Wherein, the gate pole G of IGBT is connected with Section Point B, the emitter E ground connection of IGBT, external other loads of the collector electrode C of IGBT.Particularly, it is the gate pole G that the second output signal is connected to IGBT that output module 300 will drive signal by Section Point B, directly IGBT is driven control, with opening state and the off state of realizing IGBT.
In a concrete example of the present utility model, the first power supply VEE is negative supply, and second source VCC is positive supply.Wherein, the voltage range of the first power supply VEE can for-15V～-0.1V, the voltage range of second source VCC can for+3V～+ 25V, when if the driving switch device is IGBT, the voltage range of the first power supply VEE can for-10V～-5V, the voltage range of second source VCC can for+3V～+ 25V.
In embodiment of the present utility model, as shown in Figure 2, adopt photoelectrical coupler 10 to realize the input signal isolation, and adopt the bipolar power supply driving switch device 400 of powering for example to be IGBT, that adopt when opening IGBT is positive supply second source VCC, adopts negative supply the first power supply VEE when turn-offing IGBT.Particularly, adopt photoelectrical coupler 10 to realize that the principle of bipolar power supply is: when the first resistance R 1 input incoming level is high level, photoelectrical coupler 10 is in conducting state, at this moment, the 3rd triode Q3 is in the shutoff cut-off state, draws thus the 5th triode Q5 and turn-offs cut-off, the 4th conducting of triode Q4, recommending amplification module 200 this moment provides positive supply VCC to output module 300 power supplies, and this moment, output module 300 was positive polarity, realized that positive supply drives IGBT; When the first resistance R 1 input incoming level is low level, photoelectrical coupler 10 is in off state, at this moment, the 3rd triode Q3 is in conducting state, draw thus the 5th triode Q5 conducting, the 4th triode Q4 ends, and recommending amplification module 200 this moment provides negative supply VEE to output module 300 power supplies, so output module 300 becomes negative voltage naturally, be that negative supply makes IGBT be in reliable cut-off at this moment.Be more than to make the principle of output module 300 formation bipolar power supplies according to the high-low level of input signal, can realize positive-negative power supply thus.
In another embodiment of the present utility model, signal isolation module 100 adopts transformer to realize the input signal isolation, particularly, as shown in Figure 3, signal isolation module 100 comprises the second resistance R 2, the first triode Q1, transformer 20, the 3rd resistance R 3 and the second triode Q2.One end of the second resistance R 2 is as the receiving terminal that receives input signal; The base stage of the first triode Q1 is connected with the other end of the second resistance R 2, the grounded emitter of the first triode Q1; Input one end of transformer 20 is connected with second source VCC, and the input other end of transformer 20 is connected with the collector electrode of the first triode Q1, and output one end of transformer 20 is connected with the first power supply VEE; One end of the 3rd resistance R 3 is connected with the output other end of transformer 20; The base stage of the second triode Q2 is connected with the other end of the 3rd resistance R 3, and the collector electrode of the second triode Q2 is as the output of output the first output signal, and the emitter of the second triode Q2 is connected with the first power supply VEE.
In another embodiment of the present utility model, as shown in Figure 3, the drive circuit that the present embodiment proposes and the difference of above-described embodiment are that the signal isolation module 100 in drive circuit adopts transformer 20 to realize the input signal isolation, the circuit part of recommending amplification module 200 and output module 300 is same as the previously described embodiments, does not repeat them here.
In embodiment of the present utility model, as shown in Figure 3, adopt transformer 20 to realize the input signal isolation, and adopt the bipolar power supply driving switch device 400 of powering for example to be IGBT, that adopt when opening IGBT is positive supply second source VCC, adopts negative supply the first power supply VEE when turn-offing IGBT.Particularly, adopt transformer 20 to realize that the principle of bipolar power supply is: when the second resistance R 2 input incoming levels are high level, the first triode Q1 is in conducting state, there is electric current to flow through on transformer 20 primary coils, make the second triode Q2 be in conducting state, at this moment, the 3rd triode Q3 is in the shutoff cut-off state, draw thus the 5th triode Q5 and turn-off cut-off, the 4th conducting of triode Q4, this moment, output module 300 was powered by positive supply VCC, and this moment, output module 300 was positive polarity, realized that positive supply drives IGBT; When the second resistance R 2 input incoming levels are low level, the first triode Q1 is in cut-off state, on transformer 20 primary coils, no current flows through, and the second triode Q2 is in cut-off state, at this moment, the 3rd triode Q3 is in conducting state, draw thus the 5th triode Q5 conducting, the 4th triode Q4 turn-offs cut-off, and this moment, output module 300 was by the negative supply power supply control, so output module 300 becomes negative voltage naturally, be that negative supply makes IGBT be in reliable cut-off at this moment.Be more than to make the principle of output module 300 formation bipolar power supplies according to the high-low level of input signal, can realize positive-negative power supply thus.
drive circuit according to the switching device that the utility model proposes, recommending amplification module by the first output signal control of signal isolation module output provides positive supply or negative supply to switching device, realize the bipolar power supply power supply, by turning on and off of bipolar voltage driving switch device, can adopt positive voltage when opening, adopt negative voltage during shutoff, make switching device jamproof bandwidth when turn-offing increase, thereby avoid opening by mistake the logical antijamming capability that has effectively improved switching device, stopcock device reliably, reduced the fraction defective of switching device, extended the useful life of switching device, improved the reliability of using the product of switching device.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that do not break away from principle of the present utility model and spirit can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is by claims and be equal to and limit.
Claims (9)
1. the drive circuit of a switching device, is characterized in that, comprising:
The signal isolation module that is used for receiving input signal and described input signal is isolated to generate the first output signal;
For the amplification module of recommending that described the first output signal is amplified, described input of recommending amplification module is connected with the output of described signal isolation module;
Generate the go forward side by side output module of line output of the second output signal according to the first output signal after amplifying, the input of described output module is connected with described output of recommending amplification module, the output of described output module is connected with described switching device, wherein, the described amplification module of recommending offers described output module positive supply or negative supply under the control of described the first output signal.
2. the drive circuit of switching device as claimed in claim 1, is characterized in that, described signal isolation module comprises:
The first resistance, an end of described the first resistance is as the receiving terminal that receives described input signal;
Photoelectrical coupler, the positive terminal of the diode in described photoelectrical coupler is connected with the other end of described the first resistance, the negative pole end ground connection of the diode in described photoelectrical coupler, the collector electrode of the triode in described photoelectrical coupler is as the output of described the first output signal of output, and the emitter of the triode in described photoelectrical coupler is connected with the first power supply.
3. the drive circuit of switching device as claimed in claim 1, is characterized in that, described signal isolation module comprises:
The second resistance, an end of described the second resistance is as the receiving terminal that receives described input signal;
The first triode, the base stage of described the first triode is connected with the other end of described the second resistance, the grounded emitter of described the first triode;
Transformer, input one end of described transformer is connected with second source, and the input other end of described transformer is connected with the collector electrode of described the first triode, and output one end of described transformer is connected with the first power supply;
The 3rd resistance, an end of described the 3rd resistance is connected with the output other end of described transformer;
The second triode, the base stage of described the second triode is connected with the other end of described the 3rd resistance, and the collector electrode of described the second triode is as the output of described the first output signal of output, and the emitter of described the second triode is connected with described the first power supply.
4. the drive circuit of switching device as claimed in claim 2 or claim 3, is characterized in that, the described amplification module of recommending comprises:
The 4th resistance, an end of described the 4th resistance is connected with the output of described the first output signal, the other end ground connection of described the 4th resistance;
The 3rd triode, the base stage of described the 3rd triode is connected with an end of described the 4th resistance, and the emitter of described the 3rd triode is connected with described the first power supply;
The 5th resistance, an end of described the 5th resistance is connected with the collector electrode of described the 3rd triode, and the other end of described the 5th resistance is connected with second source;
The 6th resistance, an end of described the 6th resistance is connected with described second source;
The 4th triode, the collector electrode of described the 4th triode is connected with the other end of described the 6th resistance, and the base stage of described the 4th triode is connected with the collector electrode of described the 3rd triode and an end of described the 5th resistance respectively;
The 5th triode, the base stage of described the 5th triode is connected with the base stage of described the 4th triode and the collector electrode of described the 3rd triode respectively, the collector electrode of described the 5th triode is connected with described the first power supply, the emitter of described the 5th triode is connected with the emitter of described the 4th triode, have first node between the emitter of the emitter of described the 5th triode and described the 4th triode, described first node is as described output of recommending amplification module.
5. the drive circuit of switching device as claimed in claim 4, is characterized in that, described output module comprises:
The 7th resistance and the 8th resistance, one end of described the 7th resistance is connected with described first node, the other end of described the 7th resistance is connected with an end of described the 8th resistance, the other end of described the 8th resistance is connected with described the first power supply, have Section Point between described the 7th resistance and described the 8th resistance, described Section Point is as the output of described the second output signal of described output module output.
6. the drive circuit of switching device as claimed in claim 5, is characterized in that, described Section Point is connected with described switching device, and described output module is controlled opening or turn-offing of described switching device by described the second output signal of described Section Point output.
7. the drive circuit of switching device as claimed in claim 1, is characterized in that, the voltage of described negative supply is-and 15V～-0.1V.
8. the drive circuit of switching device as claimed in claim 1, is characterized in that, described switching device is IGBT or metal-oxide-semiconductor.
9. the drive circuit of switching device as claimed in claim 8, is characterized in that, when described switching device was IGBT, the voltage of described negative supply was-and 10V～-5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263298 CN203278779U (en) | 2013-05-14 | 2013-05-14 | Drive circuit of switching element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263298 CN203278779U (en) | 2013-05-14 | 2013-05-14 | Drive circuit of switching element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278779U true CN203278779U (en) | 2013-11-06 |
Family
ID=49509100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263298 Expired - Lifetime CN203278779U (en) | 2013-05-14 | 2013-05-14 | Drive circuit of switching element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278779U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196633A (en) * | 2017-06-23 | 2017-09-22 | 广东美的制冷设备有限公司 | Switch controlling device, ac control system and the refrigeration plant of AC load |
| CN107196615A (en) * | 2017-04-06 | 2017-09-22 | 黄承伟 | Power amplifier and the method for carrying out power amplification |
| CN107210737A (en) * | 2015-02-16 | 2017-09-26 | 爱信艾达株式会社 | Switch element driver circuit |
| CN108377142A (en) * | 2018-03-26 | 2018-08-07 | 郑州安纳信电子科技有限公司 | A kind of electronic switching circuit |
| CN110534323A (en) * | 2019-09-27 | 2019-12-03 | 山东广域科技有限责任公司 | The three-phase transformer of on-load voltage regulation driving switch circuit and the application switching circuit |
| CN110798199A (en) * | 2018-08-01 | 2020-02-14 | 联合汽车电子有限公司 | MOS tube driving circuit |
| 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 |
| CN113098485A (en) * | 2021-04-02 | 2021-07-09 | 南方科技大学 | Double-rotation single-drive circuit |
| CN114083991A (en) * | 2021-11-10 | 2022-02-25 | 盐城工学院 | Real-time electric control system of new energy automobile |
| CN114726446A (en) * | 2022-02-23 | 2022-07-08 | 南昌大学 | Electro-optical modulation device |
| CN115799001A (en) * | 2022-11-09 | 2023-03-14 | 东方博沃（北京）科技有限公司 | Relay driving device |
| CN110798199B (en) * | 2018-08-01 | 2024-04-26 | 联合汽车电子有限公司 | MOS tube driving circuit |
-
2013
- 2013-05-14 CN CN 201320263298 patent/CN203278779U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107210737A (en) * | 2015-02-16 | 2017-09-26 | 爱信艾达株式会社 | Switch element driver circuit |
| CN107196615B (en) * | 2017-04-06 | 2023-08-01 | 黄承伟 | Power amplifier and method for power amplification |
| CN107196615A (en) * | 2017-04-06 | 2017-09-22 | 黄承伟 | Power amplifier and the method for carrying out power amplification |
| CN107196633A (en) * | 2017-06-23 | 2017-09-22 | 广东美的制冷设备有限公司 | Switch controlling device, ac control system and the refrigeration plant of AC load |
| CN108377142A (en) * | 2018-03-26 | 2018-08-07 | 郑州安纳信电子科技有限公司 | A kind of electronic switching circuit |
| CN108377142B (en) * | 2018-03-26 | 2023-11-07 | 郑州安纳信电子科技有限公司 | Electronic switching circuit |
| CN110798199A (en) * | 2018-08-01 | 2020-02-14 | 联合汽车电子有限公司 | MOS tube driving circuit |
| CN110798199B (en) * | 2018-08-01 | 2024-04-26 | 联合汽车电子有限公司 | MOS tube driving circuit |
| CN110534323A (en) * | 2019-09-27 | 2019-12-03 | 山东广域科技有限责任公司 | The three-phase transformer of on-load voltage regulation driving switch circuit and the application switching circuit |
| 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 |
| CN113098485A (en) * | 2021-04-02 | 2021-07-09 | 南方科技大学 | Double-rotation single-drive circuit |
| CN114083991A (en) * | 2021-11-10 | 2022-02-25 | 盐城工学院 | Real-time electric control system of new energy automobile |
| CN114726446A (en) * | 2022-02-23 | 2022-07-08 | 南昌大学 | Electro-optical modulation device |
| CN115799001A (en) * | 2022-11-09 | 2023-03-14 | 东方博沃（北京）科技有限公司 | Relay driving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203278779U (en) | Drive circuit of switching element | |
| CN103178694B (en) | Insulated gate bipolar transistor gate driving push-pull circuit | |
| CN103856205B (en) | Level shifting circuit, for driving the drive circuit of high tension apparatus and corresponding method | |
| CN103684412A (en) | Level shift device | |
| CN101860188B (en) | Switch power supply circuit | |
| CN103560655A (en) | Driver and system thereof based on parallel connection of multiple power semiconductor devices | |
| CN101789680B (en) | Drive circuit capable of quickly switching off depletion type switching element | |
| CN101813757B (en) | Magnetic sensor circuit | |
| CN101674001B (en) | Bridge driving circuit with blind area control | |
| CN103683872A (en) | Half-bridge driving circuit | |
| CN101373965B (en) | Switching circuit for power supply switch | |
| CN109494978A (en) | Integrated circuit of power supply switching circuit and power supply switching controller | |
| CN103890682A (en) | Driver circuit for a semiconductor power switch | |
| CN203896179U (en) | Interlocking drive circuit | |
| CN101997468B (en) | Motor constant-speed forward/reverse rotation control circuit | |
| CN102522978B (en) | Isolation type power transistor driver | |
| CN210273596U (en) | Automatic switching device for double power supply | |
| CN205584006U (en) | Prevent surge circuit, switching power supply and display device | |
| CN102545560A (en) | Power switch driver, IC chip, and DC-DC converter | |
| CN109167592A (en) | Low-cost and high-performance switch tube driving circuit | |
| CN202550940U (en) | Motor soft starting device | |
| CN104600966A (en) | gate driving circuit, and switching apparatus and power supply apparatus having the same | |
| CN213094179U (en) | Isolation drive switch circuit, isolation drive switch device and water purifier | |
| CN103809649A (en) | Control circuit capable of achieving sequential control over output voltage | |
| CN208078885U (en) | A kind of high-voltage MOS pipe control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |