CN201904612U - Driving circuit of switch unit of reverse-connection preventing protection circuit of solar charge controller - Google Patents
Driving circuit of switch unit of reverse-connection preventing protection circuit of solar charge controller Download PDFInfo
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- CN201904612U CN201904612U CN2010206854807U CN201020685480U CN201904612U CN 201904612 U CN201904612 U CN 201904612U CN 2010206854807 U CN2010206854807 U CN 2010206854807U CN 201020685480 U CN201020685480 U CN 201020685480U CN 201904612 U CN201904612 U CN 201904612U
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Abstract
The utility model provides a driving circuit of a switch unit of a reverse-connection preventing protection circuit of a solar charge controller. The driving circuit is provided with a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a diode D7, an NPN type triode Q6, a PNP type triode Q7, an NPN type triode Q8, an NPN type triode Q9 and a PNP type triode Q10. The driving circuit provided by the utility model can output driving signals through a signal output terminal DRV2; when a storage battery is connected reversely, the charge of the storage battery is unavailable, so as to prevent reverse charge; and when the storage battery is not charged at night, the storage battery can be prevented from discharging to a solar battery. The driving circuit has the advantages of simple structure and accurate detection.
Description
Technical field
The utility model relates to the solar charging controller technology, particularly relates to the drive circuit of the anti-reverse protective circuit switch element of a kind of solar charging controller.
Background technology
Solar charging controller is used for the whole process control of solar cell to battery charging process, in use, if misoperation, cause the accumulator positive of controller input, the negative polarity reversal connection, perhaps the solar cell of controller input just, the negative polarity reversal connection, perhaps both are being just, negative polarity reversal connection simultaneously, like this in charging process, can cause solar cell storage battery to be carried out the generation of reverse charging accident, the consequence that causes is, gently then damage storage battery, heavy then produce strong sparkover, have a strong impact on the useful life of storage battery, more serious meeting causes that storage battery is overheated blasts, and very easily causes any property loss and the generation of personal safety accident.And present existing solar charging controller does not all have the reverse connecting protection measure of this respect, has potential safety hazard.
At the prior art deficiency, provide the anti-reverse protective circuit of a kind of solar charging electric control very necessary, be applicable to that the switch power source driving circuit of the anti-reverse protective circuit of this solar charging electric control is particularly necessary so provide a kind of.
Summary of the invention
The purpose of this utility model is to avoid the deficiencies in the prior art part and drive circuit that the anti-reverse protective circuit switch element of a kind of solar charging controller is provided.
The purpose of this utility model realizes by following technical measures.
The drive circuit of the anti-reverse protective circuit switch element of a kind of solar charging controller is provided with resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, diode D7, NPN type triode Q6, positive-negative-positive triode Q7, NPN type triode Q8, NPN type triode Q9 and positive-negative-positive triode Q10;
One end of resistance R 8 is connected with input power supply VB2, resistance R 8 other ends, resistance R 9 one ends are connected with the pwm signal end, resistance R 9 other ends are connected with the base stage of triode Q6, the emitter-base bandgap grading of triode Q6 is connected with battery terminal negative BGND, the collector electrode of triode Q6 is connected with resistance R 11 1 ends, resistance R 11 other ends, one end of resistance R 10 is connected with the base stage of triode Q7, the other end of resistance R 10, the emitter-base bandgap grading of triode Q7 is connected with input power supply VB1, the collector electrode of triode Q7 is connected with diode D7 is anodal, diode D7 negative pole is connected with resistance R 12 1 ends, resistance R 12 other ends, resistance R 13 1 ends are connected with triode Q8 base stage, resistance R 13 other ends, the emitter-base bandgap grading of triode Q8, the collector electrode of triode Q10 is connected with solar cell negative pole end S-, resistance R 14 1 ends, the collector electrode of triode Q9 is connected with input power supply VS1, resistance R 14 other ends, the collector electrode of triode Q8, the base stage of triode Q9, the base stage of triode Q10 is connected the emitter-base bandgap grading of triode Q9 with reverse connection of accumulator signal input part BattInverseFlag, the emitter-base bandgap grading of triode Q10 is connected with drive signal output DRV2.
The model of described triode Q6 is MMBT4401.
The model of described triode Q7 is MMBT4403.
The model of described triode Q8 is MMBT4401.
The model of described triode Q9 is MMBT4401.
The model of described triode Q10 is MMBT4403.
The model of described diode D7 is 1N4148.
The drive circuit of the anti-reverse protective circuit switch element of a kind of solar charging controller of the present utility model is provided with resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, diode D7, NPN type triode Q6, positive-negative-positive triode Q7, NPN type triode Q8, NPN type triode Q9 and positive-negative-positive triode Q10; One end of resistance R 8 is connected with input power supply VB2, resistance R 8 other ends, resistance R 9 one ends are connected with the pwm signal end, resistance R 9 other ends are connected with the base stage of triode Q6, the emitter-base bandgap grading of triode Q6 is connected with battery terminal negative BGND, the collector electrode of triode Q6 is connected with resistance R 11 1 ends, resistance R 11 other ends, one end of resistance R 10 is connected with the base stage of triode Q7, the other end of resistance R 10, the emitter-base bandgap grading of triode Q7 is connected with input power supply VB1, the collector electrode of triode Q7 is connected with diode D7 is anodal, diode D7 negative pole is connected with resistance R 12 1 ends, resistance R 12 other ends, resistance R 13 1 ends are connected with triode Q8 base stage, resistance R 13 other ends, the emitter-base bandgap grading of triode Q8, the collector electrode of triode Q10 is connected with solar cell negative pole end S-, resistance R 14 1 ends, the collector electrode of triode Q9 is connected with input power supply VS1, resistance R 14 other ends, the collector electrode of triode Q8, the base stage of triode Q9, the base stage of triode Q10 is connected the emitter-base bandgap grading of triode Q9 with reverse connection of accumulator signal input part BattInverseFlag, the emitter-base bandgap grading of triode Q10 is connected with drive signal output DRV2.The drive circuit of the anti-reverse protective circuit switch element of this a kind of solar charging controller can pass through signal output part DRV2 output drive signal; when reverse connection of accumulator; when charging; prevent the storage battery reverse charging, can prevent when do not charge night that storage battery is to the solar-electricity tank discharge.Circuit structure is simple, and detects accurately.
Description of drawings
Utilize accompanying drawing that the utility model is further described, but the content in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the circuit diagram of the drive circuit of the anti-reverse protective circuit switch element of a kind of solar charging controller of the present utility model.
Embodiment
With the following Examples the utility model is further described.
The drive circuit of the anti-reverse protective circuit switch element of a kind of solar charging controller; as shown in Figure 1, be provided with resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, diode D7, NPN type triode Q6, positive-negative-positive triode Q7, NPN type triode Q8, NPN type triode Q9 and positive-negative-positive triode Q10.
One end of resistance R 8 is connected with input power supply VB2, resistance R 8 other ends, resistance R 9 one ends are connected with the pwm signal end, resistance R 9 other ends are connected with the base stage of triode Q6, the emitter-base bandgap grading of triode Q6 is connected with battery terminal negative BGND, the collector electrode of triode Q6 is connected with resistance R 11 1 ends, resistance R 11 other ends, one end of resistance R 10 is connected with the base stage of triode Q7, the other end of resistance R 10, the emitter-base bandgap grading of triode Q7 is connected with input power supply VB1, the collector electrode of triode Q7 is connected with diode D7 is anodal, diode D7 negative pole is connected with resistance R 12 1 ends, resistance R 12 other ends, resistance R 13 1 ends are connected with triode Q8 base stage, resistance R 13 other ends, the emitter-base bandgap grading of triode Q8, the collector electrode of triode Q10 is connected with solar cell negative pole end S-, resistance R 14 1 ends, the collector electrode of triode Q9 is connected with input power supply VS1, resistance R 14 other ends, the collector electrode of triode Q8, the base stage of triode Q9, the base stage of triode Q10 is connected the emitter-base bandgap grading of triode Q9 with reverse connection of accumulator signal input part BattInverseFlag, the emitter-base bandgap grading of triode Q10 is connected with drive signal output DRV2.
Wherein, the model of triode Q6 is MMBT4401, and the model of triode Q7 is MMBT4403, and the model of triode Q8 is MMBT4401, and the model of triode Q9 is MMBT4401, and the model of triode Q10 is MMBT4403, and the model of diode D7 is 1N4148.The drive circuit of the anti-reverse protective circuit switch element of solar charging controller of the present utility model; when there is reversal connection in storage battery; the output of reverse connection of accumulator detecting unit will be exported the BattInverseFlag signal; the input level of the push-pull circuit that will be made of NPN type triode Q9, positive-negative-positive triode Q10 drags down; thereby the output signal DRV2 that makes push-pull circuit is a low level; thereby turn-offed switch element; when charging; prevented reverse charging, can prevent when do not charge night that storage battery is to the solar-electricity tank discharge storage battery.
As seen, the drive signal DRV2 that the utility model can come the power controlling switching tube according to the reverse connection of accumulator signal closes the switch element of charge circuit, in time stops the generation to the solar cell discharge scenario of storage battery reverse charging and storage battery, this circuit structure is simple, and is with low cost.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model but not to the restriction of the utility model protection range; although the utility model has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (7)
1. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller is characterized in that: be provided with resistance R 8, resistance R 9, resistance R 10, resistance R 11, resistance R 12, resistance R 13, resistance R 14, diode D7, NPN type triode Q6, positive-negative-positive triode Q7, NPN type triode Q8, NPN type triode Q9 and positive-negative-positive triode Q10;
One end of resistance R 8 is connected with input power supply VB2, resistance R 8 other ends, resistance R 9 one ends are connected with the pwm signal end, resistance R 9 other ends are connected with the base stage of triode Q6, the emitter-base bandgap grading of triode Q6 is connected with battery terminal negative BGND, the collector electrode of triode Q6 is connected with resistance R 11 1 ends, resistance R 11 other ends, one end of resistance R 10 is connected with the base stage of triode Q7, the other end of resistance R 10, the emitter-base bandgap grading of triode Q7 is connected with input power supply VB1, the collector electrode of triode Q7 is connected with diode D7 is anodal, diode D7 negative pole is connected with resistance R 12 1 ends, resistance R 12 other ends, resistance R 13 1 ends are connected with triode Q8 base stage, resistance R 13 other ends, the emitter-base bandgap grading of triode Q8, the collector electrode of triode Q10 is connected with solar cell negative pole end S-, resistance R 14 1 ends, the collector electrode of triode Q9 is connected with input power supply VS1, resistance R 14 other ends, the collector electrode of triode Q8, the base stage of triode Q9, the base stage of triode Q10 is connected the emitter-base bandgap grading of triode Q9 with reverse connection of accumulator signal input part BattInverseFlag, the emitter-base bandgap grading of triode Q10 is connected with drive signal output DRV2.
2. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described triode Q6 is MMBT4401.
3. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described triode Q7 is MMBT4403.
4. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described triode Q8 is MMBT4401.
5. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described triode Q9 is MMBT4401.
6. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described triode Q10 is MMBT4403.
7. the drive circuit of the anti-reverse protective circuit switch element of solar charging controller according to claim 1 is characterized in that: the model of described diode D7 is 1N4148.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854807U CN201904612U (en) | 2010-12-29 | 2010-12-29 | Driving circuit of switch unit of reverse-connection preventing protection circuit of solar charge controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854807U CN201904612U (en) | 2010-12-29 | 2010-12-29 | Driving circuit of switch unit of reverse-connection preventing protection circuit of solar charge controller |
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| Publication Number | Publication Date |
|---|---|
| CN201904612U true CN201904612U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206854807U Expired - Fee Related CN201904612U (en) | 2010-12-29 | 2010-12-29 | Driving circuit of switch unit of reverse-connection preventing protection circuit of solar charge controller |
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| CN (1) | CN201904612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545164A (en) * | 2010-12-29 | 2012-07-04 | 广东易事特电源股份有限公司 | Driving circuit of switch unit of reverse-connection preventing protection circuit for solar charge controller |
-
2010
- 2010-12-29 CN CN2010206854807U patent/CN201904612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545164A (en) * | 2010-12-29 | 2012-07-04 | 广东易事特电源股份有限公司 | Driving circuit of switch unit of reverse-connection preventing protection circuit for solar charge controller |
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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: 20110720 Termination date: 20161229 |