CN201369668Y - IGBT driving circuit driven by optical fiber through isolation - Google Patents
IGBT driving circuit driven by optical fiber through isolation Download PDFInfo
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- CN201369668Y CN201369668Y CNU2008201438206U CN200820143820U CN201369668Y CN 201369668 Y CN201369668 Y CN 201369668Y CN U2008201438206 U CNU2008201438206 U CN U2008201438206U CN 200820143820 U CN200820143820 U CN 200820143820U CN 201369668 Y CN201369668 Y CN 201369668Y
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Abstract
The utility model relates to an IGBT driving circuit driven by optical fiber through isolation, comprising a light signal transmitting circuit and a light signal receiving circuit. The electric pulse signal output by a control panel is converted into the corresponding optical pulse signal by the light signal transmitting circuit, and the optical pulse signal is transferred to a driving panel by optical fiber; the received optical pulse signal is converted into the corresponding electric pulse signal by the light signal receiving circuit, then the electric pulse signal is processed by a circuit inside the driving panel and is input in a driving chip, and the electric pulse signal is output to the grid electrode of an IGBT by the output terminal of the driving panel; and the fault signal fed back by a driving circuit is transferred to the control panel by the same light signal transmitting circuit and the same light signal receiving circuit. Using the optical fiber as the high-frequency pulse signal transmitting media, the IGBT driving circuit can eliminate the interference of the heterogeneous inductance existing in a lead with the high-frequency signal, and adopting the optical fiber with stronger electromagnetic interference resistance capacity, the IGBT driving circuit can be better adapted to the environmental condition in the industrial field.
Description
Technical field
The utility model belongs to the IGBT device for power switching Driving technique in the electric electronic current change technology field, relate to a kind of IGBT drive circuit with the optical fiber isolation drive, be with the IGBT drive circuit of optical fiber, be applicable to the convertor assembly of various employing IGBT as device for power switching as the pulse signal transmission medium.
Background technology
Along with the ripe of IGBT device for power switching and the extensive use in circuit such as rectification, inversion, copped wave thereof, also more and more with the application of matching used chip for driving of IGBT and drive circuit, drive circuit makes the work of IGBT safer reliable.Because IGBT belongs to high frequency switching device, the grid input signal of controlling its break-make is a high-frequency pulse signal.Usually in the lead as transmission medium, give birth to inductance owing to exist to mix, bigger to effect of signals under high frequency condition, and the long more influence of transmission range is obvious more, thus limited the choice of location of IGBT in equipment, increased the difficulty of product structure design.
Optical fiber technology is used optical fiber as transmission medium, compare to plain conductor and have that antijamming capability is strong, transmission rate is high, characteristics such as the long-distance transmissions distortion is little, be applicable to the transmission of high-frequency pulse signal, application IGBT drive circuit can also be realized the photoelectricity isolation between control board and the drive circuit, and the short circuit current of any end can not damage the circuit of the other end.
Summary of the invention
Problem to be solved in the utility model is, overcome the deficiencies in the prior art, a kind of IGBT drive circuit with the optical fiber isolation drive is provided, the light signal radiating circuit is converted to corresponding light pulse signal with electric impulse signal, optical signal receiving circuit is converted to corresponding electric impulse signal with light pulse signal, for the fault-signal that drive circuit feeds back to, also pass control board back with same optical signal receiving circuit and light signal radiating circuit.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of IGBT drive circuit that provides according to the utility model with the optical fiber isolation drive, comprise light signal radiating circuit and optical signal receiving circuit, described light signal radiating circuit is converted into corresponding light pulse signal with the electric impulse signal of control board output, give drive plate by fiber optic transmission, electric impulse signal is converted to corresponding light pulse signal; Optical signal receiving circuit is converted to corresponding electric impulse signal with the light pulse signal that receives, and handles being input to chip for driving through the drive plate internal circuit, electric impulse signal is outputed to the grid of IGBT by the drive plate lead-out terminal; For the fault-signal that drive circuit feeds back to, also pass control board back with same optical signal receiving circuit and light signal radiating circuit.
It is to take following technical scheme further to realize that the utility model solves its technical problem:
The aforementioned lights signal transmission circuit comprise the optical fiber emitting head ,+5V power supply, triode VT1 and current-limiting resistance R1, R2 that electric impulse signal is amplified, realize electric impulse signal is converted to corresponding light pulse signal; Current-limiting resistance R1 is serially connected with between first pin (1) of power supply VCC and optical fiber emitting head, for the optical fiber emitting head provides operating voltage and plays metering function; Connect between second pin (2) of power supply VCC and optical fiber emitting head light-emitting diode D1 and current-limiting resistance R2 glimmer light-emitting diode and light pulse signal, so that observe the operating state of optical fiber emitting head synchronously; Triode VT1 base stage connects the input pulse signal, penetrates a grade ground connection, and collector electrode connects the negative electrode of diode D1 and second pin (2) of optical fiber emitting head; Optical signal receiving circuit comprise optical fiber receive head ,+5V power supply, to triode VT2 and current-limiting resistance R3 that electric impulse signal amplifies, realize light pulse signal is converted to corresponding electric impulse signal; First pin (1) of optical fiber reception head and optical fiber receive the 4th pin (4) short circuit of head and insert the base stage of triode VT2, optical fiber receives second pin (2) ground connection of head, the 3rd pin (3) of optical fiber reception head connects an end of power supply VCC and resistance R 3, resistance R 3 another termination triode VT2 collector electrodes and as output, triode VT2 penetrates a grade ground connection.
The utility model compared with prior art has significant advantage and beneficial effect: the utility model is by using the transmission medium of optical fiber as high-frequency pulse signal, replace normally used lead, its advantage applies exists: got rid of the interference to high-frequency signal of the assorted living inductance that exists in the lead 1.; 2. because light pulse signal is decayed minimumly in optical fiber, and transmission speed is exceedingly fast, to transmission range without limits, so drive circuit and control board relative position are flexible, for structural design stays bigger leeway.3. optical fiber has the ability of stronger anti-electromagnetic interference, and is not subjected to the influence of variation of ambient temperature, can better adapt to the environmental condition of industry spot.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 schematic block circuit diagram of the present utility model;
Fig. 2 circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.
A kind of IGBT drive circuit shown in Fig. 1～2 with the optical fiber isolation drive, comprise light signal radiating circuit and optical signal receiving circuit, described light signal radiating circuit is converted into corresponding light pulse signal with the electric impulse signal of control board output, give drive plate by fiber optic transmission, electric impulse signal is converted to corresponding light pulse signal; Optical signal receiving circuit is converted to corresponding electric impulse signal with the light pulse signal that receives, and handles being input to chip for driving through the drive plate internal circuit, electric impulse signal is outputed to the grid of IGBT by the drive plate lead-out terminal; For the fault-signal that drive circuit feeds back to, also pass control board back with same optical signal receiving circuit and light signal radiating circuit.
The light signal radiating circuit comprise the optical fiber emitting head ,+5V power supply, triode VT1 and current-limiting resistance R1, R2 that electric impulse signal is amplified, realize electric impulse signal is converted to corresponding light pulse signal; Current-limiting resistance R1 is serially connected with between first pin (1) of power supply VCC and optical fiber emitting head, for the optical fiber emitting head provides operating voltage and plays metering function; Connect between second pin (2) of power supply VCC and optical fiber emitting head light-emitting diode D1 and current-limiting resistance R2 glimmer light-emitting diode and light pulse signal, so that observe the operating state of optical fiber emitting head synchronously; Triode VT1 base stage connects the input pulse signal, penetrates a grade ground connection, and collector electrode connects the negative electrode of diode D1 and second pin (2) of optical fiber emitting head; Optical signal receiving circuit comprise optical fiber receive head ,+5V power supply, to triode VT2 and current-limiting resistance R3 that electric impulse signal amplifies, realize light pulse signal is converted to corresponding electric impulse signal; First pin (1) of optical fiber reception head and optical fiber receive the 4th pin (4) short circuit of head and insert the base stage of triode VT2, optical fiber receives second pin (2) ground connection of head, the 3rd pin (3) of optical fiber reception head connects an end of power supply VCC and resistance R 3, resistance R 3 another termination triode VT2 collector electrodes and as output, triode VT2 penetrates a grade ground connection.
Operation principle:
IGBT drive circuit with the optical fiber isolation drive comprises light signal radiating circuit and two major parts of optical signal receiving circuit.The light signal radiating circuit is converted into corresponding light pulse signal with the electric impulse signal of control board output, gives drive plate by fiber optic transmission.Light signal radiating circuit operation principle is: with the base stage of the electric impulse signal input triode VT1 of control board output, and by the amplification of triode, incoming fiber optic emitting head pin 2.Because integrated Light-Emitting Diode between the optical fiber emitting head pin 1,2, as shown in Figure 2, the light-emitting diode that+5V power supply VCC, resistance R 1 and triode VT1 constitute in the drive circuit optical fiber emitting head together sends light pulse signal.
Optical signal receiving circuit is converted to corresponding electric impulse signal with the light pulse signal that receives, and handles being input to chip for driving through the drive plate internal circuit, finally by the drive plate lead-out terminal control impuls is outputed to the grid of IGBT.The optical signal receiving circuit operation principle is: the pin 3 that optical fiber receives head connects+5V power supply VCC, and pin 2 ground connection provide working power for optical fiber receives head; Pin 1, pin 4 short circuits are output as electric impulse signal.Light pulse signal is finished by the inner integrated circuit that comprises phototriode of optical fiber reception head to the transfer process of electric impulse signal.Because in the radiating circuit, pulse signal has passed through the reverse of triode, the electric impulse signal that electric impulse signal that drive plate receives and control board send is complementary, and the electric impulse signal that therefore also needs drive plate to receive inserts the base stage of triode VT2, as shown in Figure 2.Like this, the electric impulse signal that obtains on triode VT2 collector electrode has just kept same-phase with the pulse signal that control board is exported, and can satisfy the requirement of chip for driving through the power of triode amplified signal, can directly import the signal input pin of chip for driving.
The transmission of fault-signal, reception: fault-signal is produced by chip for driving, drive when working properly, chip for driving PC1, high level signal of PC2 pin output, transfer electric impulse signal to corresponding light pulse signal through the light signal radiating circuit, pass control board (as shown in Figure 1) back through optical fiber again.
Claims (2)
1. IGBT drive circuit with the optical fiber isolation drive, comprise light signal radiating circuit and optical signal receiving circuit, it is characterized in that: described light signal radiating circuit is converted into corresponding light pulse signal with the electric impulse signal of control board output, give drive plate by fiber optic transmission, electric impulse signal is converted to corresponding light pulse signal; Optical signal receiving circuit is converted to corresponding electric impulse signal with the light pulse signal that receives, and handles being input to chip for driving through the drive plate internal circuit, electric impulse signal is outputed to the grid of IGBT by the drive plate lead-out terminal; For the fault-signal that drive circuit feeds back to, also pass control board back with same optical signal receiving circuit and light signal radiating circuit.
2. the IGBT drive circuit with the optical fiber isolation drive according to claim 1, it is characterized in that: described light signal radiating circuit comprise the optical fiber emitting head ,+5V power supply, triode VT1 and current-limiting resistance R1, R2 that electric impulse signal is amplified, realize electric impulse signal is converted to corresponding light pulse signal; Current-limiting resistance R1 is serially connected with between first pin (1) of power supply VCC and optical fiber emitting head, for the optical fiber emitting head provides operating voltage and plays metering function; Connect between second pin (2) of power supply VCC and optical fiber emitting head light-emitting diode D1 and current-limiting resistance R2 glimmer light-emitting diode and light pulse signal, so that observe the operating state of optical fiber emitting head synchronously; Triode VT1 base stage connects the input pulse signal, penetrates a grade ground connection, and collector electrode connects the negative electrode of diode D1 and second pin (2) of optical fiber emitting head; Optical signal receiving circuit comprise optical fiber receive head ,+5V power supply, to triode VT2 and current-limiting resistance R3 that electric impulse signal amplifies, realize light pulse signal is converted to corresponding electric impulse signal; First pin (1) of optical fiber reception head and optical fiber receive the 4th pin (4) short circuit of head and insert the base stage of triode VT2, optical fiber receives second pin (2) ground connection of head, the 3rd pin (3) of optical fiber reception head connects an end of power supply VCC and resistance R 3, resistance R 3 another termination triode VT2 collector electrodes and as output, triode VT2 penetrates a grade ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201438206U CN201369668Y (en) | 2008-12-03 | 2008-12-03 | IGBT driving circuit driven by optical fiber through isolation |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201438206U CN201369668Y (en) | 2008-12-03 | 2008-12-03 | IGBT driving circuit driven by optical fiber through isolation |
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| CN201369668Y true CN201369668Y (en) | 2009-12-23 |
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| CNU2008201438206U Expired - Fee Related CN201369668Y (en) | 2008-12-03 | 2008-12-03 | IGBT driving circuit driven by optical fiber through isolation |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710330A (en) * | 2012-05-22 | 2012-10-03 | 青岛四方车辆研究所有限公司 | Compact type PWM (pulse-width modulation) optical fiber converter |
| CN102735366A (en) * | 2012-07-05 | 2012-10-17 | 南京亚派科技实业有限公司 | IGBT (insulated gate bipolar translator) temperature detecting method |
| CN103078617A (en) * | 2012-12-27 | 2013-05-01 | 中国科学院安徽光学精密机械研究所 | Driving circuit of IGBT (Insulated Gate Bipolar Translator) |
| CN103368544A (en) * | 2013-07-19 | 2013-10-23 | 华北电力大学 | Switching device and switching equipment |
| WO2013174137A1 (en) * | 2012-05-21 | 2013-11-28 | 永济新时速电机电器有限责任公司 | Drive circuit of insulated gate bipolar transistor |
| CN104049166A (en) * | 2014-06-30 | 2014-09-17 | 北京四方继保自动化股份有限公司 | Rapid fault detection circuit based on pulse feedback |
| CN104779778A (en) * | 2015-03-27 | 2015-07-15 | 洛阳中重自动化工程有限责任公司 | Integrated IGBT driving method and device |
| CN104967288A (en) * | 2015-06-17 | 2015-10-07 | 中国科学院等离子体物理研究所 | High-voltage pulse power supply IGBT drive cabinet |
| CN106160429A (en) * | 2016-07-20 | 2016-11-23 | 合肥联信电源有限公司 | Emergency power supply information transmission system based on fiber-optic signal |
| CN106227084A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | A kind of data communication system for large power inverter power source |
| CN107528456A (en) * | 2017-10-19 | 2017-12-29 | 合肥联信电源有限公司 | A kind of high power module optical fiber drive signal change-over panel |
| CN108734946A (en) * | 2018-04-27 | 2018-11-02 | 华中光电技术研究所（中国船舶重工集团有限公司第七七研究所） | A kind of novel switched control box |
| CN109546881A (en) * | 2018-12-29 | 2019-03-29 | 西安中车永电电气有限公司 | High power Traction inverter power device |
| CN112712689A (en) * | 2020-12-29 | 2021-04-27 | 中车永济电机有限公司 | Multifunctional photoelectric signal acquisition device |
| CN113541081A (en) * | 2021-07-14 | 2021-10-22 | 四川大学 | Lossless single-phase anti-icing and de-icing control equipment based on thyristor |
-
2008
- 2008-12-03 CN CNU2008201438206U patent/CN201369668Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013174137A1 (en) * | 2012-05-21 | 2013-11-28 | 永济新时速电机电器有限责任公司 | Drive circuit of insulated gate bipolar transistor |
| CN102710330A (en) * | 2012-05-22 | 2012-10-03 | 青岛四方车辆研究所有限公司 | Compact type PWM (pulse-width modulation) optical fiber converter |
| CN102735366A (en) * | 2012-07-05 | 2012-10-17 | 南京亚派科技实业有限公司 | IGBT (insulated gate bipolar translator) temperature detecting method |
| CN102735366B (en) * | 2012-07-05 | 2014-10-08 | 南京亚派科技实业有限公司 | IGBT (insulated gate bipolar translator) temperature detecting method |
| CN103078617A (en) * | 2012-12-27 | 2013-05-01 | 中国科学院安徽光学精密机械研究所 | Driving circuit of IGBT (Insulated Gate Bipolar Translator) |
| CN103078617B (en) * | 2012-12-27 | 2016-02-10 | 中国科学院安徽光学精密机械研究所 | The drive circuit of IGBT |
| CN103368544B (en) * | 2013-07-19 | 2017-01-25 | 华北电力大学 | Switching device and switching equipment |
| CN103368544A (en) * | 2013-07-19 | 2013-10-23 | 华北电力大学 | Switching device and switching equipment |
| CN104049166A (en) * | 2014-06-30 | 2014-09-17 | 北京四方继保自动化股份有限公司 | Rapid fault detection circuit based on pulse feedback |
| CN104779778A (en) * | 2015-03-27 | 2015-07-15 | 洛阳中重自动化工程有限责任公司 | Integrated IGBT driving method and device |
| CN104967288A (en) * | 2015-06-17 | 2015-10-07 | 中国科学院等离子体物理研究所 | High-voltage pulse power supply IGBT drive cabinet |
| CN106160429A (en) * | 2016-07-20 | 2016-11-23 | 合肥联信电源有限公司 | Emergency power supply information transmission system based on fiber-optic signal |
| CN106227084A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | A kind of data communication system for large power inverter power source |
| CN106160429B (en) * | 2016-07-20 | 2019-03-29 | 合肥联信电源有限公司 | The emergency power supply information transmission system based on fiber-optic signal |
| CN107528456A (en) * | 2017-10-19 | 2017-12-29 | 合肥联信电源有限公司 | A kind of high power module optical fiber drive signal change-over panel |
| CN108734946A (en) * | 2018-04-27 | 2018-11-02 | 华中光电技术研究所（中国船舶重工集团有限公司第七七研究所） | A kind of novel switched control box |
| CN108734946B (en) * | 2018-04-27 | 2020-10-30 | 华中光电技术研究所（中国船舶重工集团有限公司第七一七研究所） | Novel switch control box |
| CN109546881A (en) * | 2018-12-29 | 2019-03-29 | 西安中车永电电气有限公司 | High power Traction inverter power device |
| CN112712689A (en) * | 2020-12-29 | 2021-04-27 | 中车永济电机有限公司 | Multifunctional photoelectric signal acquisition device |
| CN112712689B (en) * | 2020-12-29 | 2022-06-14 | 中车永济电机有限公司 | Multifunctional photoelectric signal acquisition device |
| CN113541081A (en) * | 2021-07-14 | 2021-10-22 | 四川大学 | Lossless single-phase anti-icing and de-icing control equipment based on thyristor |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20121203 |