CN203872383U - Discharging circuit of solar LED lighting device - Google Patents
Discharging circuit of solar LED lighting device Download PDFInfo
- Publication number
- CN203872383U CN203872383U CN201420274698.1U CN201420274698U CN203872383U CN 203872383 U CN203872383 U CN 203872383U CN 201420274698 U CN201420274698 U CN 201420274698U CN 203872383 U CN203872383 U CN 203872383U
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- CN
- China
- Prior art keywords
- field effect
- solar led
- power field
- illumination device
- led illumination
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Abstract
The utility model discloses a discharging circuit of a solar LED lighting device. The circuit comprises a power field effect transistor, a voltage-stabilizing diode, an optical coupler, and an audion. The drain electrode is connected with a driver circuit, a source electrode is connected with ground, and a resistor is connected between the grid electrode and the source electrode of the power field effect transistor. The anode of the voltage-stabilizing diode is connected with the source electrode of the power field effect transistor, and the cathode is connected with the grid electrode of the power field effect transistor. The output end of the optical coupler is connected with the grid electrode of the power field effect transistor, a ground end is connected with ground through a capacitor, an anode is connected with a power supply through a resistor, and a Vcc end is connected with the anode of a storage battery. The emitter electrode of the audion is connected with ground, the collector electrode is connected with the cathode of the optical coupler, and one of the base electrodes receives a discharge control signal through the adjustable resistor, and the other base electrode is connected with ground through a resistor.
Description
Technical field
The utility model relates to solar illumination apparatus control circuit field, particularly a kind of discharge circuit of solar LED.
Background technology
Day by day serious with world energy sources crisis of developing rapidly along with Science and Technology; oil price rises steadily; utilize conventional energy resource can not adapt to the needs of World Economics rapid growth, development and utilization new forms of energy, especially solar energy more and more cause the attention of national governments.Along with nitrogenize is sowed as the semi-conductive rise of the third generation of representative and the successful development of White LED, white light LEDs is considered to the new light sources of 21 century most worthy, and White-light LED illumination replaces traditional lighting and forms the major way into mankind's illumination.As the solar LED illumination device in conjunction with solar energy and LED advantage, very large practicality will be there is.
In the structure of comparatively common solar LED illumination device, mainly contain solar panel, storage battery, drive circuit (be used for driving LED).The performance of storage battery can directly have influence on the quality of solar LED illumination device, and therefore, how improving its reliability, reducing costs is the current technical issues that need to address.
Utility model content
The utility model, for prior art above shortcomings, provides a kind of discharge circuit of solar LED illumination device.The utility model is achieved through the following technical solutions:
A discharge circuit for solar LED illumination device, is connected between the storage battery and drive circuit of a solar LED illumination device, and the discharge circuit of solar LED illumination device comprises:
One power field effect pipe, drain electrode connects drive circuit, and source ground, is connected with a resistance between the grid of power field effect pipe and source electrode;
One voltage stabilizing didoe, the anodal source electrode that connects power field effect pipe, negative pole connects the grid of power field effect pipe;
One optical coupler, output connects the grid of power field effect pipe, and earth terminal is by a capacity earth, and positive pole connects a power supply by a resistance, and Vcc end connects the positive pole of storage battery;
One triode, grounded emitter, collector electrode connects the negative pole of optical coupler, and base stage is received a discharge control signal and is passed through a grounding through resistance by an adjustable resistance respectively.
Preferably, discharge control signal comprises low level and high level, under the state that is high level at discharge control signal, the discharging circuit conduction of solar LED illumination device, drive circuit obtains electric energy from storage battery, at discharge control signal, be under low level state, the discharge circuit of solar LED illumination device disconnects.
Preferably, power supply is+5V power supply.
The utility model excellent performance, reliable and stable, circuit are simple, failure rate is low, are applicable in existing solar illumination apparatus.
Accompanying drawing explanation
Shown in Fig. 1 is the circuit diagram of the utility model one embodiment;
Shown in Fig. 2 is the circuit diagram of optical coupler.
Embodiment
Below with reference to accompanying drawing of the present utility model; technical scheme in the utility model embodiment is carried out to clear, complete description and discussion; obviously; as described herein is only a part of example of the present utility model; it is not whole examples; embodiment based in the utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to protection range of the present utility model.
For the ease of the understanding to the utility model embodiment, below in conjunction with accompanying drawing, take specific embodiment and be further explained as example, and each embodiment does not form the restriction to the utility model embodiment.
As shown in Figure 1, the discharge circuit of the solar LED illumination device that the utility model provides, comprising:
Take power field effect pipe V5 as core, and drive circuit is controlled in its drain electrode output, source ground, and grid connects the output of optical coupler by resistance R 12; Voltage stabilizing didoe D4 positive pole connects the source electrode of power field effect pipe V5, and negative pole connects the grid of power field effect pipe V5; Resistance R 13 is connected between the grid and source electrode of power field effect pipe V5; The positive pole of optical coupler is by connect+5V of resistance R 11 power supply, and negative pole connects the collector electrode of triode V4; The grounded emitter of triode V4, base stage receives discharge control signal by adjustable resistance R10 respectively, by resistance R 9 ground connection.Adjusting R10 can change the bias voltage of triode V4, meets the turn-on condition of V4.
When discharge control signal provides high level, triode V4 conducting, photoelectrical coupler output high level, the gate source voltage of power field effect pipe V5 is clamped on 10V, power field effect pipe V5 conducting, storage battery by drive circuit to LED load supplying, when discharge control signal provides low level, triode V4 cut-off, power field effect pipe V5 switch is in off-state, and storage battery can not be to LED load supplying.
In the present embodiment, power field effect pipe V5 adopts IRF3205, optical coupler adopts TLP250, but the utility model do not limit, and the circuit diagram of optical coupler TLP250 as shown in Figure 2, No. 1 pin, No. 4 pins do not connect, No. 2 pin is anodal, and No. 3 pins are negative pole, No. 5 pin ground connection, No. 6 pins, No. 7 pins are output, and No. 8 pins are Vcc end.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (3)
1. a discharge circuit for solar LED illumination device, is characterized in that, is connected between the storage battery and drive circuit of a solar LED illumination device, and the discharge circuit of described solar LED illumination device comprises:
One power field effect pipe, drain electrode connects described drive circuit, and source ground, is connected with a resistance between the grid of described power field effect pipe and source electrode;
One voltage stabilizing didoe, the anodal source electrode that connects described power field effect pipe, negative pole connects the grid of described power field effect pipe;
One optical coupler, output connects the grid of described power field effect pipe, and earth terminal is by a capacity earth, and positive pole connects a power supply by a resistance, and Vcc end connects the positive pole of described storage battery;
One triode, grounded emitter, collector electrode connects the negative pole of described optical coupler, and base stage is received a discharge control signal and is passed through a grounding through resistance by an adjustable resistance respectively.
2. the discharge circuit of solar LED illumination device according to claim 1, it is characterized in that, described discharge control signal comprises low level and high level, under the state that is high level at described discharge control signal, the discharging circuit conduction of described solar LED illumination device, described drive circuit obtains electric energy from described storage battery, at described discharge control signal, is under low level state, and the discharge circuit of described solar LED illumination device disconnects.
3. the discharge circuit of solar LED illumination device according to claim 1, is characterized in that, described power supply is+5V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274698.1U CN203872383U (en) | 2014-05-27 | 2014-05-27 | Discharging circuit of solar LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274698.1U CN203872383U (en) | 2014-05-27 | 2014-05-27 | Discharging circuit of solar LED lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872383U true CN203872383U (en) | 2014-10-08 |
Family
ID=51653300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274698.1U Expired - Fee Related CN203872383U (en) | 2014-05-27 | 2014-05-27 | Discharging circuit of solar LED lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203872383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698686A (en) * | 2018-12-18 | 2019-04-30 | 国网西藏电力有限公司 | A kind of easy high current optical coupled switch circuit |
| CN110417251A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Pfc circuit and air conditioner |
-
2014
- 2014-05-27 CN CN201420274698.1U patent/CN203872383U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698686A (en) * | 2018-12-18 | 2019-04-30 | 国网西藏电力有限公司 | A kind of easy high current optical coupled switch circuit |
| CN110417251A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Pfc circuit and air conditioner |
| WO2021004451A1 (en) * | 2019-07-09 | 2021-01-14 | 广东美的制冷设备有限公司 | Pfc circuit and air conditioner |
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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: 20141008 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |