CN2612203Y - Control circuit of solar lawn lamp - Google Patents
Control circuit of solar lawn lamp Download PDFInfo
- Publication number
- CN2612203Y CN2612203Y CN 03220720 CN03220720U CN2612203Y CN 2612203 Y CN2612203 Y CN 2612203Y CN 03220720 CN03220720 CN 03220720 CN 03220720 U CN03220720 U CN 03220720U CN 2612203 Y CN2612203 Y CN 2612203Y
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- triode
- circuit
- control circuit
- inductance
- solar cell
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Abstract
The utility model relates to a solar energy control circuit, in particular to a solar energy lawn lamp control circuit, characterized in that a boost circuit of the control circuit is a LC oscillating boosting circuit, while the inductance L is a closed magnetic loop inductance coil, in the control circuit, an input of a controller is respectively connected with a solar cell and an accumulator, while an output is connected with the oscillating boosting circuit, and the output of the oscillating boosting circuit is connected with an illuminator. The utility model uses closed magnetic loop inductance, to improve the working efficiency of solar energy lawn lamp significantly.
Description
Technical field
The utility model relates to a kind of solar energy control circuit, refers in particular to a kind of solar lawn lamp control circuit.
Background technology
Solar lawn lamp meets environment protection requirement because of it and superior security performance is widely used, and its demand is increasing.Because solar lawn lamp in most of the cases is to utilize the electric power storage of 1.2V Ni-MH battery, make light source with the ultra-bright LED luminous tube, thus must the increase booster circuit, and the efficient of booster circuit is very big to the effectiveness affects of system.
In the prior art, booster circuit generally adopts not closed magnetic circuit inductance, because the leakage flux of this magnetic circuit is bigger, so its efficient is not high.
The utility model content
The purpose of this utility model is to design a kind of solar lawn lamp control circuit.Because this booster circuit adopts the closed magnetic circuit inductance, thereby greatly improved the operating efficiency of solar lawn lamp.
Its main technical schemes is that the booster circuit in the control circuit is L, C oscillation step-up circuit, and inductance L wherein is the closed magnetic circuit inductance coil.
In control circuit, the input of controller is connected with solar cell and storage battery respectively, and the output of controller is connected with oscillation step-up circuit, and the output of oscillation step-up circuit is connected with luminous element.
One end of the inductance L resistance R 2 that after the emitter junction of triode Q2 is connected in the A point, is connected in series, emitter with triode Q1 is connected again, one end of capacitor C is connected with the base stage of triode Q2, inductance L with after the other end of capacitor C is connected in the B point more respectively with the collector electrode of triode Q3 and luminous element is anodal is connected, the collector electrode of triode Q2 resistance R 3 back that is connected in series is connected with the base stage of triode Q3, the collector electrode of triode Q1, the emitter of Q3 and luminous element negative pole, battery terminal negative and solar cell negative pole connect, the positive pole of solar cell connects the positive pole and the inductance L of Schottky diode and storage battery, is connected with the positive pole of solar cell after the base stage of triode Q1 connects resistance R 1.
Description of drawings
Fig. 1 is circuit theory diagrams.
Fig. 2 is closed magnetic circuit inductance coil figure.
Fig. 3 is a circuit block diagram.
Embodiment
As shown in the figure: in control circuit, the input of controller is connected with solar cell and storage battery respectively, and the output of controller is connected with oscillation step-up circuit, and the output of oscillation step-up circuit is connected with luminous element.Booster circuit wherein is L, C oscillation step-up circuit, and inductance L is the closed magnetic circuit inductance coil.
One end of the inductance L resistance R 2 that after the emitter junction of triode Q2 is connected in the A point, is connected in series, emitter with triode Q1 is connected again, one end of capacitor C is connected with the base stage of triode Q2, inductance L with after the other end of capacitor C is connected in the B point more respectively with the collector electrode of triode Q3 and luminous element is anodal is connected, the collector electrode of triode Q2 resistance R 3 back that is connected in series is connected with the base stage of triode Q3, the collector electrode of triode Q1, the emitter of Q3 and luminous element negative pole, battery terminal negative and solar cell negative pole connect, the positive pole of solar cell connects the positive pole and the inductance L of Schottky diode and storage battery, is connected with the positive pole of solar cell after the base stage of triode Q1 connects resistance R 1.
Operation principle is as follows:
Daytime, solar cell SOLAR produced direct current under solar radiation, and through controller storage battery BT was charged; Because the base potential of Q1 pipe is than higher, Q1 ends, Q2 is because no base bias current, therefore also end, Q3 also just ends, because the operating voltage of super bright luminous element LED is more than 3V, so daytime, LED can be not bright, A, B two point voltages all are about 1.2V at this moment, arrived at dusk, because the voltage of solar cell descends, it is very low that the base potential of Q1 becomes, and Q1, Q2 have base current to flow through, the beginning conducting, the base stage of Q3 becomes high potential, so the Q3 saturation conduction, storage battery BT powers to inductance coil L by controller; At this moment B point current potential is about 0.1V, owing to the electric capacity both end voltage can not be suddenlyd change, so A point current potential also descends, extremely to the capacitor C charging, when the A point voltage rises to 0.6V when above, Q2, Q3 end power supply through b, the e of Q2, the instantaneous generation back electromotive force of inductance L, this voltage is very high, can light LED; The electric capacity both end voltage should equate, so A point current potential is higher, the A point is after R2, Q1 discharge then, and current potential reduces, Q2, Q3 conducting again, and LED extinguishes, and power supply extremely charges to electric capacity through b, the e of Q2, so circulation vibration.When at day, solar cell produces higher voltage, and Q1 ends, the circuit failure of oscillations.
Claims (3)
1, a kind of solar lawn lamp control circuit is characterized in that the booster circuit in the control circuit is L, C oscillation step-up circuit, and inductance L wherein is the closed magnetic circuit inductance coil.
2, control circuit according to claim 1, it is characterized in that in control circuit, the input of controller is connected with solar cell and storage battery respectively, and the output of controller is connected with oscillation step-up circuit, and the output of oscillation step-up circuit is connected with luminous element.
3, one end of the inductance L resistance R 2 that after the emitter junction of triode Q2 is connected in the A point, is connected in series, emitter with triode Q1 is connected again, one end of capacitor C is connected with the base stage of triode Q2, inductance L with after the other end of capacitor C is connected in the B point more respectively with the collector electrode of triode Q3 and luminous element is anodal is connected, the collector electrode of triode Q2 resistance R 3 back that is connected in series is connected with the base stage of triode Q3, the collector electrode of triode Q1, the emitter of Q3 and luminous element negative pole, battery terminal negative and solar cell negative pole connect, the positive pole of solar cell connects the positive pole and the inductance L of Schottky diode and storage battery, is connected with the positive pole of solar cell after the base stage of triode Q1 connects resistance R 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220720 CN2612203Y (en) | 2003-03-25 | 2003-03-25 | Control circuit of solar lawn lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220720 CN2612203Y (en) | 2003-03-25 | 2003-03-25 | Control circuit of solar lawn lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612203Y true CN2612203Y (en) | 2004-04-14 |
Family
ID=34162054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220720 Expired - Lifetime CN2612203Y (en) | 2003-03-25 | 2003-03-25 | Control circuit of solar lawn lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612203Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815385A (en) * | 2010-04-21 | 2010-08-25 | 重庆辉腾光电有限公司 | Solar street lamp control system |
| CN112271792A (en) * | 2020-11-10 | 2021-01-26 | 上海裕芯电子科技有限公司 | Solar control circuit with low standby power consumption |
-
2003
- 2003-03-25 CN CN 03220720 patent/CN2612203Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815385A (en) * | 2010-04-21 | 2010-08-25 | 重庆辉腾光电有限公司 | Solar street lamp control system |
| CN112271792A (en) * | 2020-11-10 | 2021-01-26 | 上海裕芯电子科技有限公司 | Solar control circuit with low standby power consumption |
| CN112271792B (en) * | 2020-11-10 | 2024-06-07 | 上海裕芯电子科技有限公司 | Solar control circuit with low standby power consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130325 Granted publication date: 20040414 |