CN202309657U - Power switch based on IGBT module - Google Patents
Power switch based on IGBT module Download PDFInfo
- Publication number
- CN202309657U CN202309657U CN2011203721850U CN201120372185U CN202309657U CN 202309657 U CN202309657 U CN 202309657U CN 2011203721850 U CN2011203721850 U CN 2011203721850U CN 201120372185 U CN201120372185 U CN 201120372185U CN 202309657 U CN202309657 U CN 202309657U
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- power switch
- direct current
- control signal
- igbt module
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Abstract
The utility model relates to a power switch based on an IGBT module. The power switch includes the IGBT module and a driving circuit. The power switch is provided with a single-phase rectifier bridge, a control signal processing circuit, a switch state detection circuit, and a feedback signal output circuit. Two terminals on an alternating current side of the single-phase rectifier bridge are connected in series with an alternating current or direction-uncertain direct current main circuit. Positive and negative poles on a direct current side of the single-phase rectifier bridge are connected with C and E poles of the IGBT module. The control signal processing circuit is provided with a switching value control signal input terminal. The power switch can realize the alternating current and direction-uncertain direct current non-contact switch control, and is compatible with a conventional switch. The power switch can feedback the switch state, so the power switch is compatible with switch-type parts, such as a contactor, and the synchronization control becomes easy. The power switch adopts the single-transistor IGBT, so the structure is simpler than the structure of a double-transistor IGBT, and the cost is reduced. The power switch has the outstanding advantages of electromagnetic interference prevention, small noise, and simple application and control.
Description
Technical field
The utility model belongs to control switch, particularly relates to a kind of power switch based on the IGBT module.
Background technology
Reduce, particularly have the characteristic that oppositely to turn-off because the IGBT module has the little and saturation pressure of driving power, therefore be widely used in fields such as converter system, frequency converter, Switching Power Supply, lighting circuit, traction transmission.
The utility model of notification number CN2556836 " UPS bypass switch " has related to a kind ofly to be made up of and the controlled power switch of IGBT module reverse parallel connection diode and IGBT module; Each switch of above-mentioned formation is connected on respectively between UPS and load, electrical network and the load; The control end of IGBT links to each other with the control circuit of UPS, and is in series with the diode consistent with its conducting direction.
The utility model of notification number CN2593468 " the power contactless electronic beam switch device that is used for fuel cell " has also related to a kind of power switch of being made up of the IGBT module; This device comprises the power switch module that the IGBT module of many parallel connections constitutes and drive circuit, the protective circuit of this power switch module, and the feedback circuit between said power switch module and drive circuit, the protective circuit.This device has been used LMDS Light Coupled Device in feedback circuit.
The power switch of above-mentioned each utility model is made up of combined I GBT module, exists the complicated and cost of circuit structure than higher defective.
Summary of the invention
The utility model is to exist the complicated and cost of circuit structure than technical problems of high in order to solve power switch that above-mentioned IGBT module combinations constitutes, and proposes a kind of power switch based on the IGBT module.
The utility model is taked following technical scheme for realizing above-mentioned purpose: this power switch comprises an IGBT module and a drive circuit thereof; Characteristic is; This power switch is provided with single-phase rectification bridge, control signal treatment circuit, on off state testing circuit and feedback signal output circuit; The AC side two ends of said single-phase rectification bridge are connected in series in and exchange or not specified direct current main circuit; The positive and negative end of single-phase rectifier bridge DC side is connected to IGBT module C, the E utmost point; Said control signal treatment circuit is provided with the switching value signal input end; The control level of control signal treatment circuit output is connected in IGBT drive circuit input, and the input of said on off state testing circuit is connected to C, the E utmost point of IGBT module, and the output of on off state testing circuit is connected in the feedback signal output circuit; Said power switch is provided with the power distribution circuit of external direct current power supply, and each voltage output end correspondence is connected in the operating voltage input of control signal treatment circuit, drive circuit, on off state testing circuit and feedback signal output circuit.
The utility model can also be taked following technical measures:
Said power distribution circuit is provided with direct current 15V and 24V voltage output end, and direct current 15V is an IGBT drive circuit works power supply, and direct current 24V is on off state testing circuit, feedback signal processing circuit and control signal treatment circuit working power.
The beneficial effect of the utility model with advantage is: this power switch can realize exchanging the noncontacting switch control with not specified direct current, and compatible with traditional switch.This power switch can feedback switch state, be convenient to parts compatibility and Synchronization Control with switchtype such as contactor.This power switch has adopted single tube IGBT, and structure is compared two-way IGBT and simply provided cost savings.This power switch has anti-electromagnetic interference, noise is little and use the simple outstanding advantage of control.
Description of drawings
Accompanying drawing 1 is the utility model example structure sketch map.
Accompanying drawing 2 is Fig. 1 embodiment electrical schematic diagrams.
Accompanying drawing 3 is control signal treatment circuit embodiment electrical schematic diagrams.
Accompanying drawing 4 is on off state testing circuit embodiment electrical schematic diagrams.
Accompanying drawing 5 is feedback signal output circuit embodiment electrical schematic diagrams.
Embodiment
Like Fig. 1, shown in 2; The housing 1 of this power switch is provided with single-phase rectification bridge Q AC side two terminals a and b, and housing 1 also is provided with the switching value signal input end c of control signal treatment circuit, the output d of feedback signal output circuit and the external direct current 24V input of power distribution circuit respectively.
As shown in Figure 2, the AC side two ends of single-phase rectification bridge Q connect terminals a and b respectively, and terminals a is connected in series in this controlled power switch with b and exchanges or not specified direct current main circuit.The positive pole of the DC side of single-phase rectification bridge Q connects the C utmost point of IGBT module, and negative pole connects the E utmost point of IGBT module.
The switching value signal input end c of control signal treatment circuit can connect push-button switch (24V level signal or 24V pulse signal) or optical fiber input signal, and the control level of control signal treatment circuit output is connected in IGBT drive circuit input.The control signal treatment circuit of present embodiment is as shown in Figure 3; It forms the switch connection input circuit by fiber optic receiver U1, schmidt shaping circuit U2, U3, U4, U5; Form switch by fiber optic receiver U7, schmidt shaping circuit U8, U9, U10, U11 and turn-off input circuit, form by latching circuit and photoelectrical coupler that d type flip flop U6, U12, U13 form.
The input of on off state testing circuit is connected to C, the E utmost point of IGBT module, and the output of on off state testing circuit is connected in the feedback signal output circuit.
The on off state testing circuit of present embodiment is as shown in Figure 4; It is made up of voltage collection circuit U14 (HCPL7800), filter circuit U15 and hysteresis comparison circuit U16; The input pin 2,4 of voltage collection circuit U14 connects C, the E utmost point of IGBT module respectively, and state detection signal is exported through diode by hysteresis comparison circuit U16.
The feedback signal output circuit of present embodiment is as shown in Figure 5, and it is made up of photoelectrical coupler U17 and peripheral components.
This power switch embodiment is provided with the power distribution circuit of external direct current 24V power supply; Power distribution circuit is provided with direct current 15V and 24V voltage output end; Direct current 15V is an IGBT drive circuit works power supply, and direct current 24V is on off state testing circuit, feedback signal processing circuit and control signal treatment circuit working power.
The action of this power switch is controlled by the switching value control signal, and the control signal treatment circuit converts this control signal to be complementary with the IGBT drive circuit level-enable signal, and the IGBT module is accomplished switch motion under the effect of IGBT drive circuit.
Claims (2)
1. power switch based on the IGBT module; Comprise an IGBT module and a drive circuit thereof; It is characterized in that: this power switch is provided with single-phase rectification bridge, control signal treatment circuit, on off state testing circuit and feedback signal output circuit; The AC side two ends of said single-phase rectification bridge are connected in series in and exchange or not specified direct current main circuit; The positive and negative end of single-phase rectifier bridge DC side is connected to IGBT module C, the E utmost point; Said control signal treatment circuit is provided with the switching value signal input end; The control level of control signal treatment circuit output is connected in IGBT drive circuit input, and the input of said on off state testing circuit is connected to C, the E utmost point of IGBT module, and the output of on off state testing circuit is connected in the feedback signal output circuit; Said power switch is provided with the power distribution circuit of external direct current power supply, and each voltage output end correspondence is connected in the operating voltage input of control signal treatment circuit, drive circuit, on off state testing circuit and feedback signal output circuit.
2. power switch according to claim 1; It is characterized in that: said power distribution circuit is provided with direct current 15V and 24V voltage output end; Direct current 15V is an IGBT drive circuit works power supply, and direct current 24V is on off state testing circuit, feedback signal processing circuit and control signal treatment circuit working power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203721850U CN202309657U (en) | 2011-03-28 | 2011-09-30 | Power switch based on IGBT module |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120084516.0 | 2011-03-28 | ||
| CN201120084516 | 2011-03-28 | ||
| CN2011203721850U CN202309657U (en) | 2011-03-28 | 2011-09-30 | Power switch based on IGBT module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309657U true CN202309657U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203721850U Expired - Fee Related CN202309657U (en) | 2011-03-28 | 2011-09-30 | Power switch based on IGBT module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309657U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931846A (en) * | 2012-09-18 | 2013-02-13 | 深圳市力生美半导体器件有限公司 | Power module circuit, power switch chip, switch power supply and design method of power module circuit |
| CN103033710A (en) * | 2012-12-14 | 2013-04-10 | 天津瑞能电气有限公司 | Test circuit used for power resistor impact energy and test method thereof |
| CN105743474A (en) * | 2014-12-29 | 2016-07-06 | Abb技术有限公司 | Control of reverse-conducting IGBT |
| CN110350899A (en) * | 2019-08-09 | 2019-10-18 | 广东福田电器有限公司 | Noncontacting switch |
-
2011
- 2011-09-30 CN CN2011203721850U patent/CN202309657U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931846A (en) * | 2012-09-18 | 2013-02-13 | 深圳市力生美半导体器件有限公司 | Power module circuit, power switch chip, switch power supply and design method of power module circuit |
| CN102931846B (en) * | 2012-09-18 | 2015-08-26 | 深圳市力生美半导体器件有限公司 | Power module circuit, power switch chip, Switching Power Supply and method for designing thereof |
| CN103033710A (en) * | 2012-12-14 | 2013-04-10 | 天津瑞能电气有限公司 | Test circuit used for power resistor impact energy and test method thereof |
| CN103033710B (en) * | 2012-12-14 | 2015-11-11 | 天津瑞能电气有限公司 | A kind of test circuit for power resistor impact energy and method of testing thereof |
| CN105743474A (en) * | 2014-12-29 | 2016-07-06 | Abb技术有限公司 | Control of reverse-conducting IGBT |
| CN105743474B (en) * | 2014-12-29 | 2019-05-10 | Abb瑞士股份有限公司 | Control to reverse-conducting IGBT |
| CN110350899A (en) * | 2019-08-09 | 2019-10-18 | 广东福田电器有限公司 | Noncontacting switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20160930 |