CN201774449U - Drive circuit of solar charger - Google Patents
Drive circuit of solar charger Download PDFInfo
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- CN201774449U CN201774449U CN201020287815XU CN201020287815U CN201774449U CN 201774449 U CN201774449 U CN 201774449U CN 201020287815X U CN201020287815X U CN 201020287815XU CN 201020287815 U CN201020287815 U CN 201020287815U CN 201774449 U CN201774449 U CN 201774449U
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Abstract
The utility model provides a drive circuit of a solar charger. The drive circuit comprises a PWM (pulse-width modulation) waveform generation circuit (1), a bootstrap circuit (2) and a waveform shaping circuit (3), wherein the output terminal of the PWM waveform generation circuit (1) is connected with the input terminal of the bootstrap circuit (2); the output terminal of the bootstrap circuit (2) is connected with the input terminal of the waveform shaping circuit (3); and the output terminal of the waveform shaping circuit (3) is connected with the G pole and the S pole of an MOS (metal oxide semiconductor) pipe. In the utility model, a singlechip is adopted to generate PWM signals with an adjustable duty cycle, so as to control the bootstrap circuit to generate a voltage capable of driving the MOS pipe, and further control the open and the close of the MOS pipe; and the waveform shaping circuit is utilized to adjust output waveform, so as to avoid distortion, control the open and the close of the MOS pipe, and further fulfill the effective adjusting of voltage and current. Therefore, the drive circuit provided by the utility model has the advantages of simple structure, convenience in use and low cost.
Description
Technical field
The utility model is a kind of drive circuit of solar charger, belongs to the renovation technique of the drive circuit of solar charger.
Background technology
Along with global energy crisis increasingly sharpens, national strategic level has been brought up in the development and use of new forms of energy.Solar energy is the regenerative resource that a kind of aboundresources can not produce pollution again, along with the raising of cell conversion rate, and the reduction of manufacturing cost, the utilization of solar energy power generating has obtained breakthrough.
At present, the drive circuit of general solar charger is that the switching loss of this mode is bigger by the direct driven MOS FET pipe of Single-chip Controlling triode, and the caloric value of metal-oxide-semiconductor is bigger, needs to strengthen fin and dispels the heat; In addition, the metal-oxide-semiconductor that also has some to adopt the P raceway groove, this metal-oxide-semiconductor cost are than higher, and buying is relatively more difficult.
The utility model content
The purpose of this utility model is to consider the problems referred to above and provides a kind of simple in structure, the drive circuit of solar charger easy to use, that cost is low.
The technical solution of the utility model is: the drive circuit of solar charger of the present utility model, include PWM Waveform generating circuit, boostrap circuit, waveform shaping circuit, wherein the output of PWM Waveform generating circuit links to each other with the input of boostrap circuit, the output of boostrap circuit links to each other with the input of waveform shaping circuit, and the output of waveform shaping circuit extremely links to each other with the G of metal-oxide-semiconductor, S.
The said PWM Waveform generating circuit comprises the device that produces pwm signal and resistance R 1, R2, the pwm signal output that wherein produces the device of pwm signal is connected with an end of resistance R 1 and is connected with an end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 is connected with boostrap circuit.
The device of above-mentioned generation pwm signal is a single-chip microcomputer, and single-chip microcomputer produces the PWM waveform of frequency adjustable, EDM Generator of Adjustable Duty Ratio.
Above-mentioned boostrap circuit includes triode Q1, Q2, resistance R 3, R4, diode D1 and electric capacity EC1, the base stage of triode Q1 is connected with resistance R 1, the emitter of triode Q1 is by resistance R 3 ground connection, the collector electrode of triode Q1 links to each other with the base stage of triode Q2 and an end of resistance R 4, the other end of resistance R 4 is connected with the negative pole of diode D1, the positive pole of diode D1 links to each other with the 18V power supply, the base stage of the collector electrode of triode Q2 and triode Q3 and R5, R6 links to each other, the positive pole of the emitter of triode Q3 and electric capacity EC1, the negative pole of resistance R 4 and diode D1 links to each other, the negative pole of electric capacity EC1 and resistance R 5, the collector electrode of triode Q 3, the S of metal-oxide-semiconductor is extremely continuous.
Above-mentioned waveform shaping circuit includes triode Q3, capacitor C 1, resistance R 5, R6 and diode D2, the base stage of triode Q3 links to each other with the collector electrode of resistance R 5, R6 and triode Q2, the other end of resistance R 5 extremely links to each other with the collector electrode of triode Q3, an end of capacitor C 1, the S of metal-oxide-semiconductor, the emitter of triode Q3 links to each other with the G utmost point of metal-oxide-semiconductor, the negative pole of diode D2 and the other end of C1, and the positive pole of diode D2 links to each other with R6.
The utility model is owing to adopt single-chip microcomputer to produce the pwm signal of EDM Generator of Adjustable Duty Ratio, but the control boostrap circuit generates the voltage of driven MOS pipe, the switch of control metal-oxide-semiconductor, it is undistorted to utilize waveform shaping circuit to adjust output waveform, control the switch of metal-oxide-semiconductor, thereby can finish effective adjustment voltage and current.The utility model is the drive circuit of solar charger a kind of simple in structure, easy to use, that cost is low.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment;
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
Embodiment:
Theory diagram of the present utility model as shown in Figure 1, the drive circuit of solar charger of the present utility model, include PWM Waveform generating circuit 1, boostrap circuit 2, waveform shaping circuit 3, wherein the output of PWM Waveform generating circuit 1 links to each other with the input of boostrap circuit 2, the output of boostrap circuit 2 links to each other with the input of waveform shaping circuit 3, and the output of waveform shaping circuit 3 extremely links to each other with the G of metal-oxide-semiconductor, S.
Circuit diagram of the present utility model as shown in Figure 2, said PWM Waveform generating circuit 1 comprises the device that produces pwm signal and resistance R 1, R2, the pwm signal output that wherein produces the device of pwm signal is connected with an end of resistance R 1 and is connected with an end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 is connected with boostrap circuit 2.
In the present embodiment, the device of above-mentioned generation pwm signal is a single-chip microcomputer, and single-chip microcomputer produces the PWM waveform of frequency adjustable, EDM Generator of Adjustable Duty Ratio.
In the present embodiment, above-mentioned boostrap circuit 2 includes triode Q1, Q2, resistance R 3, R4, diode D1 and electric capacity EC1, the base stage of triode Q1 is connected with resistance R 1, the emitter of Q1 is by resistance R 3 ground connection, the collector electrode of triode Q1 links to each other with the base stage of triode Q2 and an end of resistance R 4, the other end of resistance R 4 is connected with the negative pole of diode D1, the positive pole of diode D1 links to each other with the 18V power supply, the base stage of the collector electrode of triode Q2 and triode Q3 and R5, R6 links to each other, the positive pole of the emitter of triode Q3 and electric capacity EC1, the negative pole of resistance R 4 and diode D1 links to each other, the negative pole of electric capacity EC1 and resistance R 5, the collector electrode of triode Q3, the S of metal-oxide-semiconductor is extremely continuous.In the present embodiment, but diode D1 is a fast recovery diode, and EC1 is an electrochemical capacitor.
In the present embodiment, above-mentioned waveform shaping circuit 3 includes triode Q3, capacitor C 1, resistance R 5, R6 and diode D2, the base stage of triode Q3 links to each other with the collector electrode of resistance R 5, R6 and triode Q2, the other end of resistance R 5 extremely links to each other with the collector electrode of triode Q3, an end of capacitor C 1, the S of metal-oxide-semiconductor, the emitter of triode Q3 links to each other with the G utmost point of metal-oxide-semiconductor, the negative pole of diode D2 and the other end of C1, and the positive pole of diode D2 links to each other with R6.
Operation principle of the present utility model is as follows: the signal of pwm circuit adopts single-chip microprocessor MCU directly to export the pwm signal of 23KHz; The voltage signal of the 18V that waveform shaping circuit 3 output waveforms that triode Q3, capacitor C 1, resistance R 5, R6 and diode D2 form are complete.The concrete course of work is: the back 18V power supply that powers on charges to electric capacity EC1; Put down when the high point of pwm signal output, turn-on transistor Q1 produces voltage difference at resistance R 4 ends, make triode Q2 conducting, electrochemical capacitor EC1 discharge is by resistance R 6, the diode D2 output voltage G utmost point to metal-oxide-semiconductor, G, the S utmost point at metal-oxide-semiconductor produce the pressure reduction about 18V, conducting metal-oxide-semiconductor.When PWM when low, metal-oxide-semiconductor turn-offs, and can rapidly the junction capacitance of metal-oxide-semiconductor be discharged rapidly by triode Q3, thereby makes the metal-oxide-semiconductor reliable turn-off.By can realize the intelligent charge control of solar panel to the switch of metal-oxide-semiconductor to energy storage device.
Claims (5)
1. the drive circuit of a solar charger, it is characterized in that including PWM Waveform generating circuit (1), boostrap circuit (2), waveform shaping circuit (3), wherein the output of PWM Waveform generating circuit (1) links to each other with the input of boostrap circuit (2), the output of boostrap circuit (2) links to each other with the input of waveform shaping circuit (3), and the output of waveform shaping circuit (3) extremely links to each other with G, the S of metal-oxide-semiconductor.
2. the drive circuit of solar charger according to claim 1, it is characterized in that said PWM Waveform generating circuit (1) comprises the device that produces pwm signal and resistance R 1, R2, the pwm signal output that wherein produces the device of pwm signal is connected with an end of resistance R 1 and is connected with an end of resistance R 2, the other end ground connection of resistance R 2, the other end of resistance R 1 is connected with boostrap circuit (2).
3. the drive circuit of solar charger according to claim 2, the device that it is characterized in that above-mentioned generation pwm signal is a single-chip microcomputer, single-chip microcomputer produces the PWM waveform of frequency adjustable, EDM Generator of Adjustable Duty Ratio.
4. according to the drive circuit of claim 2 or 3 described solar chargers, it is characterized in that above-mentioned boostrap circuit (2) includes triode Q1, Q2, resistance R 3, R4, diode D1 and electric capacity EC1, the base stage of triode Q1 is connected with resistance R 1, the emitter of Q1 is by resistance R 3 ground connection, the collector electrode of triode Q1 links to each other with the base stage of triode Q2 and an end of resistance R 4, the other end of resistance R 4 is connected with the negative pole of diode D1, the positive pole of diode D1 links to each other with the 18V power supply, the base stage of the collector electrode of triode Q2 and triode Q3 and R5, R6 links to each other, the positive pole of the emitter of triode Q3 and electric capacity EC1, the negative pole of resistance R 4 and diode D1 links to each other, the negative pole of electric capacity EC1 and resistance R 5, the collector electrode of triode Q3, the S of metal-oxide-semiconductor is extremely continuous.
5. the drive circuit of solar charger according to claim 4, it is characterized in that above-mentioned waveform shaping circuit (3) includes triode Q3, capacitor C 1, resistance R 5, R6 and diode D2, the base stage of triode Q3 links to each other with the collector electrode of resistance R 5, R6 and triode Q2, the other end of resistance R 5 extremely links to each other with the collector electrode of triode Q3, an end of capacitor C 1, the S of metal-oxide-semiconductor, the emitter of triode Q3 links to each other with the G utmost point of metal-oxide-semiconductor, the negative pole of diode D2 and the other end of C1, and the positive pole of diode D2 links to each other with R6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287815XU CN201774449U (en) | 2010-08-10 | 2010-08-10 | Drive circuit of solar charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287815XU CN201774449U (en) | 2010-08-10 | 2010-08-10 | Drive circuit of solar charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774449U true CN201774449U (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020287815XU Expired - Fee Related CN201774449U (en) | 2010-08-10 | 2010-08-10 | Drive circuit of solar charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208337A (en) * | 2016-08-31 | 2016-12-07 | 苏州迈力电器有限公司 | Solar energy intelligent charger |
| CN106356916A (en) * | 2016-08-31 | 2017-01-25 | 苏州迈力电器有限公司 | Solar charger for electric vehicle |
-
2010
- 2010-08-10 CN CN201020287815XU patent/CN201774449U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208337A (en) * | 2016-08-31 | 2016-12-07 | 苏州迈力电器有限公司 | Solar energy intelligent charger |
| CN106356916A (en) * | 2016-08-31 | 2017-01-25 | 苏州迈力电器有限公司 | Solar charger for electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., Free format text: FORMER NAME: FOSHAN SHUNDE REALDESIGN ELECTRONICS INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528300 Shunde, Guangdong, Daliang Industrial Park, Fengxiang, Xiang Xiang Road, No. 1 Patentee after: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., LTD. Address before: 528300 Guangdong province Foshan city Shunde District Daliang Industrial Park Fengxiang Huaye Road No. 1 Patentee before: Foshan Shunde Realdesign Electronics Industry Co., Ltd. |
|
| 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: 20110323 Termination date: 20160810 |