CN217183273U - Novel switch device driving circuit with negative pressure - Google Patents
Novel switch device driving circuit with negative pressure Download PDFInfo
- Publication number
- CN217183273U CN217183273U CN202220213568.1U CN202220213568U CN217183273U CN 217183273 U CN217183273 U CN 217183273U CN 202220213568 U CN202220213568 U CN 202220213568U CN 217183273 U CN217183273 U CN 217183273U
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- diode
- electric connection
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- drive
- negative pressure
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- 239000003990 capacitor Substances 0.000 claims description 14
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model discloses a novel take switch device drive circuit of negative pressure, including drive controller, drive controller's anodal output electric connection has diode Z1's negative pole and electric capacity C1's one end, and electric capacity C1's the other end and diode Z1's anodal electric connection has same resistance R1's one end, and resistance R1's other end electric connection has switch tube Q1's base, and switch tube Q1's projecting pole and drive controller's negative pole output all ground connection, and switch tube Q1's collecting electrode electric connection has output interface. The utility model discloses an increase diode Z1 and electric capacity C1, make switching device obtain a drive of taking the negative pressure on the basis that does not need the negative power supply, can greatly optimize the circuit cost, and this negative pressure drive circuit device is few, has optimized drive circuit greatly, improves drive reliability, reduction in production cost.
Description
Technical Field
The utility model relates to a switching device drive technical field especially relates to a novel take switching device drive circuit of negative pressure.
Background
In the field of power conversion, a switching device needs a quick and reliable driving circuit, an existing switching device driving circuit is complex in power supply, a positive power supply and a negative power supply need to be arranged, a special driving chip is needed, the circuit is complex, the cost is high, and the using requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to solve the disadvantages of the prior art and to provide a novel driving circuit for a switching device with negative pressure.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a novel take switch device drive circuit of negative pressure, includes drive controller, drive controller's anodal output electric connection has diode Z1's negative pole and electric capacity C1's one end, and electric capacity C1's the other end and diode Z1's anodal electric connection has the one end of same resistance R1, and resistance R1's other end electric connection has the base of switch tube Q1, and switch tube Q1's emitter all grounds with drive controller's negative pole output, and switch tube Q1's collecting electrode electric connection has output interface.
Preferably, the diode Z1 is a zener diode.
Preferably, the capacitor C1 is a voltage-stabilizing energy-storing capacitor.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an increase diode Z1 and electric capacity C1, make switching device obtain a drive of taking the negative pressure on the basis that does not need the negative power supply, can greatly optimize the circuit cost, and this negative pressure drive circuit device is few, has optimized drive circuit greatly, improves drive reliability, reduction in production cost.
Drawings
Fig. 1 is a circuit diagram of a novel switching device driving circuit with negative voltage according to the present invention;
fig. 2 is a voltage variation trend diagram of a novel switching device driving circuit with negative voltage according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a novel switching device driving circuit with negative voltage includes a driving controller, a positive output end of the driving controller is electrically connected to a negative electrode of a diode Z1 and one end of a capacitor C1, the other end of the capacitor C1 and the positive electrode of a diode Z1 are electrically connected to one end of a same resistor R1, the other end of the resistor R1 is electrically connected to a base of a switching tube Q1, an emitter of the switching tube Q1 and the negative output end of the driving controller are both grounded, and a collector of the switching tube Q1 is electrically connected to an output interface, wherein the diode Z1 is a voltage stabilizing diode, and the capacitor C1 is a voltage stabilizing energy storage capacitor; the utility model discloses an increase diode Z1 and electric capacity C1, make the switching element obtain a drive of taking the negative pressure on the basis that does not need the negative power supply, can greatly optimize the circuit cost, and this negative pressure drive circuit device is few, has optimized drive circuit greatly, improves drive reliability, reduction in production cost.
The working principle is as follows: when the driving controller sends out a high level, due to the existence of the zener diode Z1, the driving voltage transmitted to the cathode terminal of the diode Z1 is V _ dr1, the voltage at the two ends of the capacitor C1 is Vz1, when the driving controller sends out a low level, due to the existence of the capacitor C1, the capacitor voltage cannot suddenly change, the driving voltage transmitted to the end of the switching tube Q1 is 0-Vz1, namely the driving voltage transmitted to the base of the switching tube Q1 is negative, the voltage of the diode Z1 is reduced to Vz1, and the whole negative voltage switching device driving circuit obtains a driving with a negative voltage on the basis that a negative power supply is not needed by the switching device through increasing the diode Z1 and the capacitor C1, so that the circuit cost can be greatly optimized, and the number of negative voltage driving circuits is small, so that the driving circuit is greatly optimized, the driving reliability is improved, and the production cost is reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel take switch device drive circuit of negative pressure, includes drive controller, its characterized in that, drive controller's anodal output electric connection has diode Z1's negative pole and capacitor C1's one end, and capacitor C1's the other end and diode Z1's positive pole electric connection have the one end of same resistance R1, and resistance R1's other end electric connection has the base of switch tube Q1, and the emitter of switch tube Q1 and drive controller's negative pole output all ground connection, and switch tube Q1's collecting electrode electric connection has output interface.
2. The novel switching device driver circuit with negative voltage as claimed in claim 1, wherein said diode Z1 is a zener diode.
3. The novel negative voltage switch device driver circuit as claimed in claim 1, wherein said capacitor C1 is a voltage-stabilizing energy-storage capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220213568.1U CN217183273U (en) | 2022-01-26 | 2022-01-26 | Novel switch device driving circuit with negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220213568.1U CN217183273U (en) | 2022-01-26 | 2022-01-26 | Novel switch device driving circuit with negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217183273U true CN217183273U (en) | 2022-08-12 |
Family
ID=82736870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220213568.1U Active CN217183273U (en) | 2022-01-26 | 2022-01-26 | Novel switch device driving circuit with negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217183273U (en) |
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2022
- 2022-01-26 CN CN202220213568.1U patent/CN217183273U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230317 Address after: Room 420 - 131, South Building, Torch Plaza, No. 56-58 Torch Road, Torch Park, Xiamen Torch High-tech Zone, Xiamen, Fujian, 361006 Patentee after: Xinruiyuan (Xiamen) Technology Co.,Ltd. Address before: Room 505, building 3, Xinguang Industrial Park, No.9, Xinle East Road, Haicang District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen baowo Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240422 Address after: Room 701-2, No. 1-3 Xinjia Road, Haicang District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen baowo Technology Co.,Ltd. Country or region after: China Address before: Room 420 - 131, South Building, Torch Plaza, No. 56-58 Torch Road, Torch Park, Xiamen Torch High-tech Zone, Xiamen, Fujian, 361006 Patentee before: Xinruiyuan (Xiamen) Technology Co.,Ltd. Country or region before: China |