CN203851011U - Simple low-voltage gate driving circuit - Google Patents
Simple low-voltage gate driving circuit Download PDFInfo
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- CN203851011U CN203851011U CN201420254035.3U CN201420254035U CN203851011U CN 203851011 U CN203851011 U CN 203851011U CN 201420254035 U CN201420254035 U CN 201420254035U CN 203851011 U CN203851011 U CN 203851011U
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- diode
- field effect
- channel mos
- mos tube
- voltage gate
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Abstract
The utility model discloses a simple low-voltage gate driving circuit, which comprises a signal input end, a signal output end, a power supply end, a grounding end, two diodes, two resistors, a power field effect transistor, and a channel MOS tube, wherein the signal input end is connected with the positive electrode of one diode, the negative electrode of the diode is connected with the power field effect transistor, and one end of the power field effect transistor is connected with the power supply end; the signal input end is connected with the negative electrode of the other diode, the positive electrode of the diode is connected with the channel MOS tube, and one end of the channel MOS tube is connected with the grounding end; and the power field effect transistor and the channel MOS tube are connected to serve as the signal output end, and two ends of each diode are respectively in parallel connection with one resistor. The simple low-voltage gate driving circuit has the beneficial effects that the structure is simple, the cost of the chip is low, and large-scale development, popularization and use are facilitated.
Description
Technical field
The utility model relates to a kind of circuit, particularly a kind of Simple Low Voltage gate driver circuit.
Background technology
Along with the integrated development of electronics, the application of integrated little chip is also more and more applicable to electronic technology every field, and the circuit design of low cost simple can greatly reduce the development cost of electronic device.The highest gate source voltage of general power field effect pipe is 20V left and right, so will guarantee that gate source voltage can not surpass 20V, has increased the complexity of circuit in 24V application.But at 12V or more in the application of low-voltage, circuit just can be simplified greatly.
Utility model content
The technical problems to be solved in the utility model is: the low pressure that a kind of circuit is simple, development cost is low, be convenient to promote the use of gate driver circuit is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of Simple Low Voltage gate driver circuit, comprise: signal input part, signal output part, power end, earth terminal, two diodes, two resistance, a power field effect pipe, a channel MOS tube, described signal input part connects a diode cathode, diode cathode connects power field effect pipe, and power field effect pipe one end is connected to power end; Signal input part connects another diode cathode, and diode cathode connects channel MOS tube, and channel MOS tube one end connects earth terminal; Power field effect pipe is connected with channel MOS tube and as signal output part, wherein a resistance in parallel is distinguished at each diode two ends.
As preferred version, described power field effect pipe is IRF9540.
As preferred version, described channel MOS tube is IRF540N channel MOS tube.
As preferred version, described diode is IN4148 HF switch diode.
As preferred version, signal input part front end connects a Schmidt trigger.Described Schmidt trigger is 555 Schmidt triggers.
The beneficial effects of the utility model are: by R3, R4 makes field effect transistor delay conducting to gate capacitance charges; And directly field effect transistor is ended immediately grid capacitance electric discharge by diode, thereby avoided common conduct.This circuit structure is simple, chip cost is low, be easy to large-scale development promotes the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Now by reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.These embodiment are interpreted as only for the utility model is described, need not limiting protection range of the present utility model.After having read content of the present utility model, those skilled in the art can do various modifications to the utility model, and the variation of these equivalences and modification fall into the protection range that the utility model limits equally.
Specific embodiment as shown in Figure 1, comprise: signal input part IN, signal output part OUT, power end POWER, earth terminal, two diode D1, D2, two resistance R 3, R4, a power field effect pipe Q2, a channel MOS tube Q1, described signal input part connects a diode cathode, diode cathode connects power field effect pipe, and power field effect pipe one end is connected to power end; Signal input part connects another diode cathode, and diode cathode connects channel MOS tube, and channel MOS tube one end connects earth terminal; Power field effect pipe is connected with channel MOS tube and as signal output part, wherein a resistance in parallel is distinguished at each diode two ends.Due to field effect
The existence of tube grid electric capacity, by R3, R4 makes field effect transistor delay conducting to gate capacitance charges; And directly field effect transistor is ended immediately grid capacitance electric discharge by diode, thereby avoided common conduct.This circuit requirement is the square-wave pulse that edge is precipitous signal input part IN input, therefore control signal, from the equipment access of single-chip microcomputer or other open circuit outputs, be passed through the high-speed comparator of Schmidt trigger (such as 555) or output and just can receive signal input part IN.If input edge is excessively slow, diode delay circuit has also just lost effect.
R3, choosing of R4 is relevant with IN signal edge rising or falling speed, and signal edge is more precipitous, R3, R4 is eligible less, and it is faster that switching speed also just can be done.
More than show and only described principal character of the present utility model and utility model point.Those skilled in the art should understand, and the utility model is not restricted to the described embodiments.Do not departing under the prerequisite of the utility model point and protection range, the utility model also has various variations, and these changes and improvements all will fall in the claimed scope of the utility model.The claimed scope of the utility model is limited by appending claims and equivalent thereof.
Claims (6)
1. a Simple Low Voltage gate driver circuit, it is characterized in that: comprising: signal input part, signal output part, power end, earth terminal, two diodes, two resistance, a power field effect pipe, a channel MOS tube, described signal input part connects a diode cathode, diode cathode connects power field effect pipe, and power field effect pipe one end is connected to power end; Signal input part connects another diode cathode, and diode cathode connects channel MOS tube, and channel MOS tube one end connects earth terminal; Power field effect pipe is connected with channel MOS tube and as signal output part, wherein a resistance in parallel is distinguished at each diode two ends.
2. Simple Low Voltage gate driver circuit according to claim 1, is characterized in that: described power field effect pipe is IRF9540.
3. Simple Low Voltage gate driver circuit according to claim 1, is characterized in that: described channel MOS tube is IRF540N channel MOS tube.
4. Simple Low Voltage gate driver circuit according to claim 1, is characterized in that: described diode is IN4148 HF switch diode.
5. according to the Simple Low Voltage gate driver circuit described in any one in claim 1 to 4, it is characterized in that: signal input part front end connects a Schmidt trigger.
6. Simple Low Voltage gate driver circuit according to claim 5, is characterized in that: described Schmidt trigger is 555 Schmidt triggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254035.3U CN203851011U (en) | 2014-05-17 | 2014-05-17 | Simple low-voltage gate driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254035.3U CN203851011U (en) | 2014-05-17 | 2014-05-17 | Simple low-voltage gate driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851011U true CN203851011U (en) | 2014-09-24 |
Family
ID=51563981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420254035.3U Expired - Fee Related CN203851011U (en) | 2014-05-17 | 2014-05-17 | Simple low-voltage gate driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851011U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009617A (en) * | 2014-05-17 | 2014-08-27 | 苏州蓝萃电子科技有限公司 | Simple low-voltage grid driving circuit |
| CN108964643A (en) * | 2018-06-27 | 2018-12-07 | 深圳市汇北川电子技术有限公司 | A kind of drive control circuit and control method of the power device at current mirror end |
| CN114362612A (en) * | 2021-11-30 | 2022-04-15 | 河北汉光重工有限责任公司 | PWM power amplification circuit based on P-channel and N-channel MOSFET |
-
2014
- 2014-05-17 CN CN201420254035.3U patent/CN203851011U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009617A (en) * | 2014-05-17 | 2014-08-27 | 苏州蓝萃电子科技有限公司 | Simple low-voltage grid driving circuit |
| CN108964643A (en) * | 2018-06-27 | 2018-12-07 | 深圳市汇北川电子技术有限公司 | A kind of drive control circuit and control method of the power device at current mirror end |
| CN114362612A (en) * | 2021-11-30 | 2022-04-15 | 河北汉光重工有限责任公司 | PWM power amplification circuit based on P-channel and N-channel MOSFET |
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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 |
Granted publication date: 20140924 Termination date: 20150517 |
|
| EXPY | Termination of patent right or utility model |