CN201764334U - Brightness-adjustable LED lamp - Google Patents
Brightness-adjustable LED lamp Download PDFInfo
- Publication number
- CN201764334U CN201764334U CN2010205418726U CN201020541872U CN201764334U CN 201764334 U CN201764334 U CN 201764334U CN 2010205418726 U CN2010205418726 U CN 2010205418726U CN 201020541872 U CN201020541872 U CN 201020541872U CN 201764334 U CN201764334 U CN 201764334U
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- circuit
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- led lamp
- power supply
- pcc
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- Expired - Fee Related
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Abstract
A brightness-adjustable LED lamp comprises a power supply circuit, a voltage stabilizing circuit, a LED lamp set, a pulse-width adjusting circuit and a power assembly. An input terminal of the power supply circuit is connected with the power supply, an anode output terminal of the power supply circuit is divided into two ways, one way is connected with a power supply terminal of the pulse-width adjusting circuit by the voltage stabilizing circuit, the other way is connected with an output terminal of the power assembly by the LED lamp set, an output terminal of the pulse-width adjusting circuit is connected with a control terminal of the power assembly; a cathode output terminal of the power supply circuit is respectively connected with ground wire terminals of the power assembly, the voltage stabilizing circuit and the pulse-width adjusting circuit. Compared to the prior art, the utility model has advantages of simple structure, easy operation, low cost and brightness-adjustable performance.
Description
Technical field
The utility model relates to a kind of LED lamp, is specifically related to a kind of intensity adjustable LED lamp.
Background technology
High light efficiency, low light decay great power LED have been widely used in many lighting fields such as street lamp, bulkhead lamp capable, Tunnel Lamp, shot-light, fluorescent lamp, are subjected to the consistent favorable comment of industry deeply.But existing various LED lamps all do not have dimming function, many local uses inconvenience are arranged more, as desk lamp, bedside lamp and nurse with lamp etc., and are unfavorable for saving the energy.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of intensity adjustable LED lamp is provided.
Its technical scheme is: comprise power circuit, mu balanced circuit, LED lamp group, pulse width regulating circuit and (PCC) power.The input of described power circuit connects power supply, the cathode output end of power circuit is divided into two-way, the mu balanced circuit of leading up to is connected with the power end of pulse width regulating circuit, another road is connected with the output of (PCC) power by LED lamp group, and the output of pulse width regulating circuit is connected with the control end of (PCC) power; The cathode output end of power circuit is connected with the ground terminal of (PCC) power, mu balanced circuit and pulse width regulating circuit respectively.
Wherein, described power circuit is the AC/DC change-over circuit.Described (PCC) power is triode or FET.
The utility model compared with prior art, but have the advantage of regulated at will LED lamp simple in structure, easy to use, with low cost brightness.
Description of drawings
Accompanying drawing is the circuit structure diagram of a kind of embodiment of the utility model.
The specific embodiment
With reference to accompanying drawing, a kind of intensity adjustable LED lamp comprises power circuit 1, mu balanced circuit 2, LED lamp group 3, pulse width regulating circuit 4 and (PCC) power 5.The input of power circuit 1 connects power supply U, the cathode output end of power circuit 1 is divided into two-way, the mu balanced circuit 2 of leading up to is connected with the power end of pulse width regulating circuit 4, another road is connected with the output of (PCC) power 5 by LED lamp group 3, and the output of pulse width regulating circuit 4 is connected with the control end of (PCC) power 5; The cathode output end of power circuit 1 is connected with the ground terminal of (PCC) power 5, mu balanced circuit 2 and pulse width regulating circuit 4 respectively.Wherein, power circuit 1 is the AC/DC change-over circuit.(PCC) power 5 is triode or FET.
During operation, power supply U converts dc source to by power circuit 1, and provides the energy by (PCC) power 5 to LED lamp group 3.By adjusting the output of pulse width regulating circuit 4, can control the conducting pulsewidth of (PCC) power 5, thereby regulate the brightness of LED lamp group 3.
Claims (3)
1. intensity adjustable LED lamp, comprise power circuit, mu balanced circuit, LED lamp group, pulse width regulating circuit and (PCC) power, it is characterized in that: the input of described power circuit connects power supply, the cathode output end of power circuit is divided into two-way, the mu balanced circuit of leading up to is connected with the power end of pulse width regulating circuit, another road is connected with the output of (PCC) power by LED lamp group, and the output of pulse width regulating circuit is connected with the control end of (PCC) power; The cathode output end of power circuit is connected with the ground terminal of (PCC) power, mu balanced circuit and pulse width regulating circuit respectively.
2. intensity adjustable LED lamp according to claim 1 is characterized in that: described power circuit is the AC/DC change-over circuit.
3. intensity adjustable LED lamp according to claim 1 is characterized in that: described (PCC) power is triode or FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205418726U CN201764334U (en) | 2010-09-26 | 2010-09-26 | Brightness-adjustable LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205418726U CN201764334U (en) | 2010-09-26 | 2010-09-26 | Brightness-adjustable LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764334U true CN201764334U (en) | 2011-03-16 |
Family
ID=43716941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205418726U Expired - Fee Related CN201764334U (en) | 2010-09-26 | 2010-09-26 | Brightness-adjustable LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764334U (en) |
-
2010
- 2010-09-26 CN CN2010205418726U patent/CN201764334U/en not_active Expired - Fee Related
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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: 20110316 Termination date: 20110926 |