CN203151801U - Led point light source circuit - Google Patents
Led point light source circuit Download PDFInfo
- Publication number
- CN203151801U CN203151801U CN 201320002756 CN201320002756U CN203151801U CN 203151801 U CN203151801 U CN 203151801U CN 201320002756 CN201320002756 CN 201320002756 CN 201320002756 U CN201320002756 U CN 201320002756U CN 203151801 U CN203151801 U CN 203151801U
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- resistance
- led
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- rectifier bridge
- driver module
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- 239000003990 capacitor Substances 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
Provided is an LED point light source circuit, comprising N groups of LED lamp circuits, a rectifier bridge, and an LED driving module. Key points are that an AC input end of the rectifier bridge is connected with a first capacitor in series and then is connected with an AC power L end. Two ends of the first capacitor are connected with first resistors in series. An output negative terminal of the rectifier bridge is connected with ground, and an output positive terminal is connected with a power terminal of the LED driving module through a step-down circuit. The LED driving module is provided with N output ends, and each output end is connected with a group of LED lamp circuit. The LED lamp circuits are provided with resistors. An end of the resistor is connected with the output positive terminal of the rectifier bridge, and the other end of the resistor is connected with LED lamps, and then is connected with a collector electrode of an audion. A base electrode of the audion is connected with the output end of the LED driving module, and an emitting electrode of the audion is connected with ground. Beneficial effects of the circuit are that structure is simple, and point light source volume is reduced.
Description
Technical field
The utility model relates to a kind of LED decorative lamp, specifically, relates in particular to a kind of LED point-source of light circuit.
Background technology
The LED illuminating lamp is modal a kind of lighting during we live, its light emitting source to around radius, make around its lightness also is uniformly distributed in, and the LED lamp is because energy-conservation, the reason of environmental protection is subjected to the recommendation energetically in the world, be called as the 4th generation green illumination.
Therefore, the LED lamp is widely used in various environment and place, wherein is no lack of the Landscape Lighting in large-scale open-air place.In this type of illumination, often need to use a large amount of LED bulbs and carry out combination shaping and series, parallel lamp to reach the landscape effect of needs, LED point-source of light circuit is a kind of as the outdoor decoration lamp, is more adopted by many urban looks.
The shortcoming of existing LED point-source of light is: drive circuit is too complicated, causes the point-source of light volume excessive.
The utility model content
The utility model purpose provides a kind of LED point-source of light circuit, has advantage simple in structure, can dwindle the point-source of light volume.
For achieving the above object, this practicality comprises N group LED circuit for lamp, rectifier bridge, LED driver module by a kind of LED point-source of light circuit; Its key is: connect AC power L end behind ac input end string first electric capacity of described rectifier bridge, the two ends of this first electric capacity are serially connected with first resistance;
The output negativing ending grounding of described rectifier bridge, output plus terminal connects the power end of described LED driver module through reduction voltage circuit, and this LED drive module setting has N output, and each output is connected with one group of described LED circuit for lamp;
Described LED circuit for lamp is provided with resistance, the output plus terminal of the described rectifier bridge of one termination of this resistance behind the other end string LED lamp of resistance, connects the collector electrode of triode, the base stage of this triode connects the output of described LED driver module, the grounded emitter of this LED driver module.
Described reduction voltage circuit comprises second resistance and the 3rd resistance, the described rectifier bridge of a termination of second resistance wherein, ground connection behind other end string the 3rd resistance;
The common port of described second resistance and the 3rd resistance is connected described LED driver module;
The common port of described second resistance and the 3rd resistance is also through voltage stabilizing didoe ground connection, and the common port of this second resistance and the 3rd resistance is also through electrochemical capacitor ground connection.
Described AC power N end is connected with an end of the 4th resistance, ground connection behind other end string the 5th resistance of the 4th resistance, ground connection behind common port string the 3rd electric capacity of described the 4th resistance and the 5th resistance, the feedback end of the described LED driver module of public termination of the 4th resistance and the 5th resistance.
The beneficial effects of the utility model are: a kind of LED point-source of light circuit simple in structure is provided, can have dwindled the point-source of light volume.
Description of drawings
Fig. 1 is circuit structure diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of LED point-source of light circuit comprises N group LED circuit for lamp, rectifier bridge, LED driver module U; Its key is: connect AC power L end after an ac input end string first capacitor C 1 of described rectifier bridge, the two ends of this first capacitor C 1 are serially connected with first resistance R 1;
The output negativing ending grounding of described rectifier bridge, output plus terminal connects the power end of described LED driver module U through reduction voltage circuit, and this LED driver module U is provided with N output, and each output is connected with one group of described LED circuit for lamp; N=2 or 3 or 4.
Described LED circuit for lamp is provided with resistance R, the output plus terminal of the described rectifier bridge of one termination of this resistance R behind the other end string LED lamp of resistance R, connects the collector electrode of triode T, the base stage of this triode T connects the output of described LED driver module U, the grounded emitter of this LED driver module U.
Described reduction voltage circuit comprises second resistance R 2 and the 3rd resistance R 3, the described rectifier bridge of a termination of second resistance R 2 wherein, other end string the 3rd resistance R 3 back ground connection;
The common port of described second resistance R 2 and the 3rd resistance R 3 is connected described LED driver module U;
The common port of described second resistance R 2 and the 3rd resistance R 3 is also through voltage stabilizing didoe D ground connection, and the common port of this second resistance R 2 and the 3rd resistance R 3 is also through electrochemical capacitor C2 ground connection.
Described AC power N end is connected with an end of the 4th resistance R 4, other end string the 5th resistance R 5 back ground connection of the 4th resistance R 4, common port string the 3rd capacitor C 3 back ground connection of described the 4th resistance R 4 and the 5th resistance R 5, the feedback end of the described LED driver module of the public termination U of the 4th resistance R 4 and the 5th resistance R 5.
Claims (3)
1. a LED point-source of light circuit comprises N group LED circuit for lamp, rectifier bridge, LED driver module (U); It is characterized in that: connect AC power L end behind ac input end string first electric capacity (C1) of described rectifier bridge, the two ends of this first electric capacity (C1) are serially connected with first resistance (R1);
The output negativing ending grounding of described rectifier bridge, output plus terminal connects the power end of described LED driver module (U) through reduction voltage circuit, and this LED driver module (U) is provided with N output, and each output is connected with one group of described LED circuit for lamp;
Described LED circuit for lamp is provided with resistance (R), the output plus terminal of the described rectifier bridge of one termination of this resistance (R), behind the other end string LED lamp of resistance (R), connect the collector electrode of triode (T), the base stage of this triode (T) connects the output of described LED driver module (U), the grounded emitter of this LED driver module (U).
2. LED point-source of light circuit according to claim 1, it is characterized in that: described reduction voltage circuit comprises second resistance (R2) and the 3rd resistance (R3), the described rectifier bridge of a termination of second resistance (R2) wherein, other end string the 3rd resistance (R3) back ground connection;
The common port of described second resistance (R2) and the 3rd resistance (R3) is connected described LED driver module (U);
The common port of described second resistance (R2) and the 3rd resistance (R3) is also through voltage stabilizing didoe (D) ground connection, and the common port of this second resistance (R2) and the 3rd resistance (R3) is also through electrochemical capacitor (C2) ground connection.
3. LED point-source of light circuit according to claim 1, it is characterized in that: described AC power N end is connected with an end of the 4th resistance (R4), other end string the 5th resistance (R5) the back ground connection of the 4th resistance (R4), common port string the 3rd electric capacity (C3) the back ground connection of described the 4th resistance (R4) and the 5th resistance (R5), the feedback end of the described LED driver module of public termination (U) of the 4th resistance (R4) and the 5th resistance (R5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002756 CN203151801U (en) | 2013-01-05 | 2013-01-05 | Led point light source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002756 CN203151801U (en) | 2013-01-05 | 2013-01-05 | Led point light source circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151801U true CN203151801U (en) | 2013-08-21 |
Family
ID=48979288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002756 Expired - Fee Related CN203151801U (en) | 2013-01-05 | 2013-01-05 | Led point light source circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295721A (en) * | 2017-08-10 | 2017-10-24 | 广东工业大学 | A kind of electric indicator lamp of LED drive circuit and LED |
| CN109448355A (en) * | 2018-11-10 | 2019-03-08 | 慈溪市栋电子有限公司 | IR remote controller controlled wireless remote control socket |
-
2013
- 2013-01-05 CN CN 201320002756 patent/CN203151801U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295721A (en) * | 2017-08-10 | 2017-10-24 | 广东工业大学 | A kind of electric indicator lamp of LED drive circuit and LED |
| CN107295721B (en) * | 2017-08-10 | 2023-05-09 | 广东工业大学 | LED drive circuit and LED electric indicator lamp |
| CN109448355A (en) * | 2018-11-10 | 2019-03-08 | 慈溪市栋电子有限公司 | IR remote controller controlled wireless remote control socket |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140105 |