CN202652622U - Driving power supply used for 3-watt LED light fixture - Google Patents
Driving power supply used for 3-watt LED light fixture Download PDFInfo
- Publication number
- CN202652622U CN202652622U CN 201220234276 CN201220234276U CN202652622U CN 202652622 U CN202652622 U CN 202652622U CN 201220234276 CN201220234276 CN 201220234276 CN 201220234276 U CN201220234276 U CN 201220234276U CN 202652622 U CN202652622 U CN 202652622U
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- CN
- China
- Prior art keywords
- circuit
- led light
- power supply
- driving power
- watts
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a driving power supply used for a 3-watt LED light fixture, comprising a power supply input end, a power supply output end, and a capacitance-resistance voltage reduction circuit, a rectification circuit, a filtering circuit and a voltage stabilizing circuit which are arranged between the power supply input end and the power supply output end. The driving power supply used for a 3-watt LED light fixture is simple in structure, stable in performance and long in service life, and can be directly and externally arranged on a wire, thereby reducing the space occupation of an LED desk lamp.
Description
Technical field
The utility model relates to LED light fixture driving power field, specifically a kind of driving power for 3 watts of LED light fixtures.
Background technology
Existing 3 watts of LED driving powers are comprised of a plurality of rectification circuits and filter circuit, controlling circuit of voltage regulation and inverter circuit, and its internal structure is complicated, high, the poor reliability of cost; Wherein this part is very unstable for the current stabilization control circuit, and it is perishable to drive chip, causes LED lamp pearl stroboscopic to occur and the state that do not work; Driving power rectification circuit and filter circuit are too much, give circuit complicated, cause components and parts too much, and circuit power consumption is high.
The utility model content
The technical problems to be solved in the utility model provides a kind of driving power for 3 watts of LED light fixtures, and it is simple in structure, stable performance.
The technical solution of the utility model is:
A kind of driving power for 3 watts of LED light fixtures, include power input, power output end and be arranged at power input and power output end between rectification circuit and be parallel to the filter circuit of rectification circuit DC side, be in series with capacitance-resistance voltage reduction circuit between described power input and the rectification circuit; The DC side of described rectification circuit also is parallel with voltage stabilizing circuit.
Described capacitance-resistance voltage reduction circuit is combined by the first resistance and the first Capacitance parallel connection.
Described rectification circuit is comprised of four diode rectifier bridges.
Described filter circuit is to be made of the second electric capacity.
Described voltage stabilizing circuit is to be made of voltage stabilizing didoe.
Advantage of the present utility model:
(1), the first capacitance parameter in the capacitance-resistance voltage reduction circuit of the present utility model determined rear end load supplying stream size, adjusts the size that the first capacitance parameter can change output current, satisfies the rear end load to the demand of electric current;
(2), the power parameter of the voltage-stabiliser tube diode in the voltage stabilizing circuit of the present utility model has determined the scope of application of rear terminal voltage; the power parameter of adjusting the voltage-stabiliser tube diode can satisfy user demand; stable performance, protective circuit can work LED for a long time for a long time.
The utility model is simple in structure, stable performance, long service life, and can directly be placed on the electric wire, has saved the space of LED desk lamp.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the circuit theory diagrams that the utility model is connected with 3 watts of led array.
Embodiment
See Fig. 1, a kind of driving power for 3 watts of LED light fixtures, include power input 1, power output end 2 and be set in turn in power input 1 and power output end 2 between capacitance-resistance voltage reduction circuit 3, rectification circuit 4, filter circuit 5 and voltage stabilizing circuit 6; See Fig. 2, capacitance-resistance voltage reduction circuit 3 is series between power input 1 and the rectification circuit 4, is formed by the first resistance R 1 and the first capacitor C 1 parallel combination; Rectification circuit 4 is comprised of four diode rectifier bridge D1, D2, D3, D4; Filter circuit 5 and voltage stabilizing circuit 6 are parallel to respectively the DC side of rectification circuit, and filter circuit 5 is to be made of the second capacitor C 2, and voltage stabilizing circuit 6 is to be made of voltage stabilizing didoe VD1.
Claims (5)
1. driving power that is used for 3 watts of LED light fixtures, include power input, power output end and be arranged at power input and power output end between rectification circuit and be parallel to the filter circuit of rectification circuit DC side, it is characterized in that: be in series with capacitance-resistance voltage reduction circuit between described power input and the rectification circuit; The DC side of described rectification circuit also is parallel with voltage stabilizing circuit.
2. a kind of driving power for 3 watts of LED light fixtures according to claim 1, it is characterized in that: described capacitance-resistance voltage reduction circuit is combined by the first resistance and the first Capacitance parallel connection.
3. a kind of driving power for 3 watts of LED light fixtures according to claim 1, it is characterized in that: described rectification circuit is comprised of four diode rectifier bridges.
4. a kind of driving power for 3 watts of LED light fixtures according to claim 1, it is characterized in that: described filter circuit is to be made of the second electric capacity.
5. a kind of driving power for 3 watts of LED light fixtures according to claim 1, it is characterized in that: described voltage stabilizing circuit is to be made of voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234276 CN202652622U (en) | 2012-05-23 | 2012-05-23 | Driving power supply used for 3-watt LED light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234276 CN202652622U (en) | 2012-05-23 | 2012-05-23 | Driving power supply used for 3-watt LED light fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652622U true CN202652622U (en) | 2013-01-02 |
Family
ID=47421639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220234276 Expired - Fee Related CN202652622U (en) | 2012-05-23 | 2012-05-23 | Driving power supply used for 3-watt LED light fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428967A (en) * | 2013-07-03 | 2013-12-04 | 惠州元晖光电股份有限公司 | Lossless forward voltage matching network for LED driver |
-
2012
- 2012-05-23 CN CN 201220234276 patent/CN202652622U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428967A (en) * | 2013-07-03 | 2013-12-04 | 惠州元晖光电股份有限公司 | Lossless forward voltage matching network for LED driver |
| WO2015000189A1 (en) * | 2013-07-03 | 2015-01-08 | Huizhou Light Engine Limited | Lossless forward voltage matching network for led drivers |
| CN103428967B (en) * | 2013-07-03 | 2015-09-16 | 惠州元晖光电股份有限公司 | For the harmless forward voltage matching network of LED driver |
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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: 20130102 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |