CN206023733U - The electrical switch driver of achievable quick on-off - Google Patents
The electrical switch driver of achievable quick on-off Download PDFInfo
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- CN206023733U CN206023733U CN201620986310.XU CN201620986310U CN206023733U CN 206023733 U CN206023733 U CN 206023733U CN 201620986310 U CN201620986310 U CN 201620986310U CN 206023733 U CN206023733 U CN 206023733U
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- electrical switch
- mos pipe
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Abstract
This utility model discloses a kind of electrical switch driver of achievable quick on-off, and which drives driving small-signal unit, power pipe unit and main circuit that a route is sequentially connected in series to take can unit composition；The coupling transformer primary side and primary side are respectively provided with a primary coil and at least 4 secondary coils, and this at least 4 secondary coils are further divided at least 2 VTpSecondary coil and at least 2 VTnSecondary coil；The driving small-signal unit further includes filtration module, metal-oxide-semiconductor and the first diode between filtration module, metal-oxide-semiconductor, this filtration module is connected with VTn secondary coils, the grid and source electrode of this metal-oxide-semiconductor is connected with the high-potential output end of VTp secondary coils and electronegative potential outfan respectively, and a Zener diode is in parallel with filtration module.This utility model had both greatly reduced electrical switch drive circuit volume, had accelerated electrical switch rising front again without the need for extra power supply, and electrical switch drive circuit power demand significantly reduces, and was especially suitable for array MOSFET electrical switches.
Description
Technical field
This utility model belongs to power electronic devices applied technical field, more particularly to a kind of electricity of achievable quick on-off
Sub- switch driver.
Background technology
Drive circuit is the interface circuit between power device and numerical control system, and its performance has weight to main circuit parameter
Affect.For example, drive circuit is had a major impact to the rising edge of MOSFET power devices.Existing electrical switch drive circuit
Rising front is relatively slow, and needs extra high power switching power supply.Above-mentioned technical problem how is overcome to become art technology
The direction that personnel make great efforts.
Content of the invention
This utility model purpose is to provide a kind of electrical switch driver of achievable quick on-off, and this can achieve quick logical
Disconnected electrical switch driver had both greatly reduced electrical switch drive circuit volume, had accelerated again without the need for extra power supply
Electrical switch rising front, electrical switch drive circuit power demand significantly reduce, and are especially suitable for array MOSFET electrical switches.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is：A kind of electronic cutting of achievable quick on-off
Driver is closed, including：Square-wave generator, push-pull circuit, high-voltage MOS pipe, acceleration NE, coupling transformer and at least 2
Branch road is driven, driving small-signal unit, power pipe unit and the main circuit that this driving route is sequentially connected in series takes can unit composition；
The square-wave generator is connected with the input of push-pull circuit, and the grid of the high-voltage MOS pipe is connected to recommends electricity
The outfan on road, the source electrode of the high-voltage MOS pipe and drain electrode are located at ground connection and accelerate between NE, the acceleration network list
Unit is connected with the primary coil of coupling transformer；
The coupling transformer primary side and primary side are respectively provided with a primary coil and at least 4 secondary coils, this
At least 4 secondary coils are further divided at least 2 VTpSecondary coil and at least 2 VTnSecondary coil, the acceleration network list
Unit is connected in series in the primary coil of coupling transformer, the V of coupling transformerTpSecondary coil and VTnSecondary coil is all connected to
Correspondingly drive on the driving small-signal unit of branch road；
The driving small-signal unit further includes filtration module, metal-oxide-semiconductor and between filtration module, metal-oxide-semiconductor
First diode, this filtration module are connected with VTn secondary coils, the grid and source electrode of this metal-oxide-semiconductor respectively with VTp secondary coils
High-potential output end and the connection of electronegative potential outfan, a Zener diode are in parallel with the first diode, filtration module connected；
The main circuit takes the current-limiting resistances that energy unit further includes storage capacitance, the second diode and 2 series connection, institute
The drain electrode that storage capacitance is stated with the metal-oxide-semiconductor for driving small-signal unit is connected, and second diode is located at the current limliting electricity of 2 series connection
Between the contact and metal-oxide-semiconductor and the contact of storage capacitance of resistance, the source electrode of the metal-oxide-semiconductor of small-signal unit is driven to be connected to power tube list
The grid of power tube in unit.
In above-mentioned technical proposal, further improvement project is as follows：
1. in such scheme, the R for accelerating NE by parallel connectionvResistance and CvElectric capacity is composed in parallel.
2., in such scheme, the power tube in the power pipe unit is by the first power MOS pipe and the second power MOS pipe
Compose in parallel.
3., in such scheme, the push-pull circuit includes the first power MOS pipe, the second power MOS pipe and the 3rd power
Metal-oxide-semiconductor, the second power MOS pipe and the 3rd power MOS tube parallel, the first power MOS pipe and the second power MOS pipe and the 3rd power
Metal-oxide-semiconductor is connected.
4., in such scheme, the driving number of branches is four, and this four drive branch circuit parallel connection connection.
As above-mentioned technical proposal is used, this utility model has following advantages compared with prior art：
This utility model can achieve the electrical switch driver of quick on-off, and its MOSFET electrical switches rising front can add
Speed has widened range of application to 3ns, and using dipulse injection work(before and after taking energy unit from coupling transformer and main circuit
Rate, without the need for extra power supply, had both greatly reduced electrical switch drive circuit volume, before accelerating electrical switch rising again
Edge, electrical switch drive circuit power demand significantly reduce, and are especially suitable for array MOSFET electrical switches.
Description of the drawings
Logical transition electrical block diagram of the accompanying drawing 1 for this utility model MOSFET electrical switch drive circuits；
Accompanying drawing 2 is secondary acceleration and power circuit structural representation in this utility model electrical switch drive circuit.
In the figures above：1st, square-wave generator；2nd, push-pull circuit；3rd, high-voltage MOS pipe；4th, accelerate NE；5th, couple
Transformator；6th, branch road is driven；7th, small-signal unit is driven；71st, filtration module；72nd, metal-oxide-semiconductor；73rd, the first diode；8th, power
Pipe unit；81st, power tube；9th, main circuit takes energy unit；91st, storage capacitance；92nd, the second diode；93rd, current-limiting resistance；10th, steady
Pressure diode.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to this utility model：
Embodiment 1：A kind of electrical switch driver of achievable quick on-off, including：Square-wave generator 1, push-pull circuit
2nd, high-voltage MOS pipe 3, accelerate NE 4, coupling transformer 5 and at least 2 driving branch roads 6, this driving branch road 6 is by going here and there successively
The driving small-signal unit 7, power pipe unit 8 of connection and main circuit take energy unit 9 and constitute；
The square-wave generator 1 is connected with the input of push-pull circuit 2, and the grid of the high-voltage MOS pipe 3 is connected to recommends
The outfan of circuit 2, the source electrode of the high-voltage MOS pipe 3 and drain electrode are located at ground connection and accelerate between NE 4, the acceleration
NE 4 is connected with the primary coil of coupling transformer 5, the R for accelerating NE 4 by parallel connectionvResistance and CvElectric capacity is simultaneously
Joint group into；
5 primary side of the coupling transformer and primary side are respectively provided with a primary coil and at least 4 secondary coils, this
At least 4 secondary coils are further divided at least 2 VTpSecondary coil and at least 2 VTnSecondary coil, the acceleration network list
Unit 4 is connected in series in the primary coil of coupling transformer 5, the V of coupling transformer 5TpSecondary coil and VTnSecondary coil is all connected with
To on the corresponding driving small-signal unit 7 for driving branch road 6；
The driving small-signal unit 7 further includes filtration module 71, metal-oxide-semiconductor 72 and is located at filtration module 71, metal-oxide-semiconductor
The first diode 73 between 72, this filtration module 71 are connected with VTn secondary coils, and the grid of this metal-oxide-semiconductor 72 and source electrode are distinguished
It is connected with the high-potential output end of VTp secondary coils and electronegative potential outfan, a Zener diode 10 and the one or two pole that connects
Pipe 73, filtration module 71 are in parallel；
The main circuit takes the current limlitings electricity that energy unit 9 further includes storage capacitance 91, the second diode 92 and 2 series connection
Resistance 93, the storage capacitance 91 are connected with the drain electrode of the metal-oxide-semiconductor 72 for driving small-signal unit 7, and second diode 92 is located at 2
Between the contact and metal-oxide-semiconductor 72 and the contact of storage capacitance of the current-limiting resistance 93 of individual series connection, the metal-oxide-semiconductor of small-signal unit 7 is driven
Source electrode be connected to the grid of power tube 81 in power pipe unit 8.
Power tube 81 in above-mentioned power pipe unit 8 is made up of the first power MOS pipe and the second power MOS tube parallel.
Logical transition circuit is as shown in Figure 1.Wherein, RvAnd CvAccelerate for pulse front edge, secondary accelerating circuit is opened with array
Close power device as shown in Figure 2.Wherein, Q11、Q12、Q21And Q22For power tube, Ck1And Ck2Respectively drive circuit storage capacitor
Device, Dz1And Dz2Difference gate protection Zener diode.Using flying capacitor CkDriving power is provided for drive circuit.This electricity
Road not only can reduce the power demand of electrical switch drive circuit, and before may also speed up the rising of gate drive signal
Edge.
First, using main circuit voltage to discharge capacity Ck1And Ck2Charge；Then, while triggering S1、Q11And Q12By electric capacity
Device stored voltage is applied directly to grid source two ends, using dipulse injection before and after taking energy unit from coupling transformer and main circuit
Power, without the need for extra power supply, had both greatly reduced electrical switch drive circuit volume, before accelerating electrical switch rising again
Edge, electrical switch drive circuit power demand significantly reduce, and are especially suitable for array MOSFET electrical switches.
Embodiment 2：A kind of electrical switch driver of achievable quick on-off, including：Square-wave generator 1, push-pull circuit
2nd, high-voltage MOS pipe 3, accelerate NE 4, coupling transformer 5 and at least 2 driving branch roads 6, this driving branch road 6 is by going here and there successively
The driving small-signal unit 7, power pipe unit 8 of connection and main circuit take energy unit 9 and constitute；
The square-wave generator 1 is connected with the input of push-pull circuit 2, and the grid of the high-voltage MOS pipe 3 is connected to recommends
The outfan of circuit 2, the source electrode of the high-voltage MOS pipe 3 and drain electrode are located at ground connection and accelerate between NE 4, the acceleration
NE 4 is connected with the primary coil of coupling transformer 5, the R for accelerating NE 4 by parallel connectionvResistance and CvElectric capacity is simultaneously
Joint group into；
5 primary side of the coupling transformer and primary side are respectively provided with a primary coil and at least 4 secondary coils, this
At least 4 secondary coils are further divided at least 2 VTpSecondary coil and at least 2 VTnSecondary coil, the acceleration network list
Unit 4 is connected in series in the primary coil of coupling transformer 5, the V of coupling transformer 5TpSecondary coil and VTnSecondary coil is all connected with
To on the corresponding driving small-signal unit 7 for driving branch road 6；
The driving small-signal unit 7 further includes filtration module 71, metal-oxide-semiconductor 72 and is located at filtration module 71, metal-oxide-semiconductor
The first diode 73 between 72, this filtration module 71 are connected with VTn secondary coils, and the grid of this metal-oxide-semiconductor 72 and source electrode are distinguished
It is connected with the high-potential output end of VTp secondary coils and electronegative potential outfan, a Zener diode 10 and the one or two pole that connects
Pipe 73, filtration module 71 are in parallel；
The main circuit takes the current limlitings electricity that energy unit 9 further includes storage capacitance 91, the second diode 92 and 2 series connection
Resistance 93, the storage capacitance 91 are connected with the drain electrode of the metal-oxide-semiconductor 72 for driving small-signal unit 7, and second diode 92 is located at 2
Between the contact and metal-oxide-semiconductor 72 and the contact of storage capacitance of the current-limiting resistance 93 of individual series connection, the metal-oxide-semiconductor of small-signal unit 7 is driven
Source electrode be connected to the grid of power tube 81 in power pipe unit 8.
Above-mentioned push-pull circuit 2 includes the first power MOS pipe 21, the second power MOS pipe 22 and the 3rd power MOS pipe 23, the
Two power MOS pipes 22 are in parallel with the 3rd power MOS pipe 23, the first power MOS pipe 21 and the second power MOS pipe 22 and the 3rd power
Metal-oxide-semiconductor 23 is connected.
Above-mentioned 6 number of driving branch road is four, and this four driving branch roads 6 are connected in parallel.
Using above-mentioned achievable quick on-off electrical switch driver when, its MOSFET electrical switches rising front can plus
Speed has widened range of application to 3ns；Using dipulse injecting power before and after taking energy unit from coupling transformer and main circuit,
Without the need for extra power supply, electrical switch drive circuit volume was both greatly reduced, electrical switch rising front had been accelerated again, electricity
Sub- switch driving circuit power demand significantly reduces, and is especially suitable for array MOSFET electrical switches.
Above-described embodiment only for technology design of the present utility model and feature are described, its object is to allow and be familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes that is made according to this utility model spirit or modification, should all cover protection domain of the present utility model it
Interior.
Claims (5)
1. a kind of electrical switch driver of achievable quick on-off, it is characterised in that：Including：Square-wave generator（1）, recommend electricity
Road（2）, high-voltage MOS pipe（3）, accelerate NE（4）, coupling transformer（5）At least 2 driving branch roads（6）, this driving
Road（6）By the driving small-signal unit being sequentially connected in series（7）, power pipe unit（8）Taking with main circuit can unit（9）Composition；
The square-wave generator（1）With push-pull circuit（2）Input connection, the high-voltage MOS pipe（3）Grid be connected to and push away
Draw circuit（2）Outfan, the high-voltage MOS pipe（3）Source electrode and drain electrode be located at ground connection and accelerate NE（4）Between,
The acceleration NE（4）With coupling transformer（5）Primary coil connection；
The coupling transformer（5）Primary side and primary side are respectively provided with a primary coil and at least 4 secondary coils, and this is extremely
Few 4 secondary coils are further divided at least 2 VTpSecondary coil and at least 2 VTnSecondary coil, the acceleration NE
（4）With coupling transformer（5）Primary coil be connected in series in, coupling transformer（5）VTpSecondary coil and VTnSecondary coil is equal
It is connected to corresponding driving branch road（6）Driving small-signal unit（7）On；
The driving small-signal unit（7）Further include filtration module（71）, metal-oxide-semiconductor（72）Be located at filtration module（71）、
Metal-oxide-semiconductor（72）Between the first diode（73）, this filtration module（71）It is connected with VTn secondary coils, this metal-oxide-semiconductor（72）Grid
Pole and source electrode are connected with the high-potential output end of VTp secondary coils and electronegative potential outfan respectively, a Zener diode（10）With
First diode of series connection（73）, filtration module（71）In parallel；
The main circuit takes can unit（9）Further include storage capacitance（91）, the second diode（92）Current limliting with 2 series connection
Resistance（93）, the storage capacitance（91）With driving small-signal unit（7）Metal-oxide-semiconductor（72）Drain electrode connection, the described 2nd 2
Pole pipe（92）It is located at the current-limiting resistance of 2 series connection（93）Contact and metal-oxide-semiconductor（72）And the contact of storage capacitance between, drive little
Signal element（7）The source electrode of metal-oxide-semiconductor be connected to power pipe unit（8）Middle power tube（81）Grid.
2. the electrical switch driver of achievable quick on-off according to claim 1, it is characterised in that：The acceleration net
Network unit（4）By R in parallelvResistance and CvElectric capacity is composed in parallel.
3. the electrical switch driver of achievable quick on-off according to claim 1, it is characterised in that：The power tube
Unit（8）In power tube（81）It is made up of the first power MOS pipe and the second power MOS tube parallel.
4. the electrical switch driver of achievable quick on-off according to claim 1, it is characterised in that：Described recommend electricity
Road（2）Including the first power MOS pipe（21）, the second power MOS pipe（22）With the 3rd power MOS pipe（23）, the second power MOS pipe
（22）With the 3rd power MOS pipe（23）Parallel connection, the first power MOS pipe（21）With the second power MOS pipe（22）With the 3rd power MOS
Pipe（23）Series connection.
5. the electrical switch driver of achievable quick on-off according to claim 1, it is characterised in that：Described driving is propped up
Road（6）Number is four, this four driving branch roads（6）It is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986310.XU CN206023733U (en) | 2016-08-30 | 2016-08-30 | The electrical switch driver of achievable quick on-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986310.XU CN206023733U (en) | 2016-08-30 | 2016-08-30 | The electrical switch driver of achievable quick on-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023733U true CN206023733U (en) | 2017-03-15 |
Family
ID=58254813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620986310.XU Active CN206023733U (en) | 2016-08-30 | 2016-08-30 | The electrical switch driver of achievable quick on-off |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106209047A (en) * | 2016-08-30 | 2016-12-07 | 苏州泰思特电子科技有限公司 | The electrical switch driver of quick on-off can be realized |
-
2016
- 2016-08-30 CN CN201620986310.XU patent/CN206023733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106209047A (en) * | 2016-08-30 | 2016-12-07 | 苏州泰思特电子科技有限公司 | The electrical switch driver of quick on-off can be realized |
| CN106209047B (en) * | 2016-08-30 | 2023-07-04 | 苏州泰思特电子科技有限公司 | Electronic switch driver capable of realizing quick on-off |
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