CN202143259U - Drive lighting circuit for LED light fixture - Google Patents
Drive lighting circuit for LED light fixture Download PDFInfo
- Publication number
- CN202143259U CN202143259U CN201120229231U CN201120229231U CN202143259U CN 202143259 U CN202143259 U CN 202143259U CN 201120229231 U CN201120229231 U CN 201120229231U CN 201120229231 U CN201120229231 U CN 201120229231U CN 202143259 U CN202143259 U CN 202143259U
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- CN
- China
- Prior art keywords
- led
- light fixture
- drive circuit
- led light
- lighting circuit
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Disclosed is a drive lighting circuit for an LED light fixture, comprising sequentially connected power supply, LED drive circuit module, and LED plate module, wherein the LED drive circuit module is connected with an MCU (Microprogrammed Control Unit); and the LED drive circuit module adopts a PWM switch control integration IC. The drive lighting circuit for LED light fixture is simple in structure with no externally arranged transformer, and the drive circuit is stable.
Description
Technical field
The utility model relates to the LED field of illuminating lamps, specifically is a kind of driving lighting circuit of LED light fixture.
Background technology
Along with the development and the maturation of LED technology, the performance index of LED increase substantially day by day, and the light efficiency of LED has has met or exceeded the light efficiency level of ordinary incandescent lamp at present, and luminous flux is also increasing considerably, and LED is widely used at lighting field.But the drive circuit of existing LED light fixture mainly comprises driving power, drive circuit module and LED lamp pearl; Driving power drives drive circuit module the lamp pearl is lighted; But when LED lamp pearl need be regulated brightness; Need establish transformer in addition and convert direct current to High Level AC Voltage and come drive circuit, but the electric current after the transformer conversion is unstable, influence the illuminating effect of LED lamp pearl.
The utility model content
The technical problem that the utility model will solve provides a kind of driving lighting circuit of LED light fixture, solves the existing high-tension drive circuit electric current problem of unstable that needs.
The technical scheme of the utility model:
A kind of driving lighting circuit of LED light fixture comprises the power supply, led drive circuit module and the led board module that connect successively, and described led drive circuit module, power supply all are connected with microcontroller MCU, and the led drive circuit module selects for use the PWM switch to control integrated IC.
Described led board module is selected Piranha encapsulated LED lamp pearl or SMD3528 or SMD5050 or SMD3629 or SMD3020 or SMD5051 or SMD5060 for use.
Described power supply is selected lithium battery for use.
The advantage of the utility model: drive circuit module selects for use voltage increase and current constant driving circuit-PWM switch to control integrated IC; Controlling and driving led board module through microcontroller MCU is lighted; And microcontroller MCU drives the PWM switch through the PWM mode and controls integrated IC, realizes the adjusting of led board module brightness.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
See Fig. 1, a kind of driving lighting circuit of LED light fixture comprises that lithium battery 1, the PWM switch of connection are controlled integrated IC 2 and led board module 3 successively, and lithium battery 1, PWM switch are controlled integrated IC 2 and all be connected with microcontroller MCU4.
Led board module 3 adopts Piranha encapsulated LED lamp pearl or SMD3528 or SMD5050 or SMD3629 or SMD3020 or SMD5051 or SMD5060, and the power of single led lamp pearl is between 0.04-0.5W, and LED quantity is between 10-20.The led drive circuit module adopts the voltage increase and current constant drives, and the led drive circuit module adopts the PWM switch to control integrated IC, through the BOOST circuit topology, to LED constant current is provided.
Claims (3)
1. the driving lighting circuit of a LED light fixture; Comprise the power supply, led drive circuit module and the led board module that connect successively; It is characterized in that: described led drive circuit module, power supply all are connected with microcontroller MCU, and the led drive circuit module selects for use the PWM switch to control integrated IC.
2. the driving lighting circuit of a kind of LED light fixture according to claim 1 is characterized in that: described led board module is selected Piranha encapsulated LED lamp pearl or SMD3528 or SMD5050 or SMD3629 or SMD3020 or SMD5051 or SMD5060 for use.
3. the driving lighting circuit of a kind of LED light fixture according to claim 1 is characterized in that: described power supply is selected lithium battery for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120229231U CN202143259U (en) | 2011-07-01 | 2011-07-01 | Drive lighting circuit for LED light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120229231U CN202143259U (en) | 2011-07-01 | 2011-07-01 | Drive lighting circuit for LED light fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202143259U true CN202143259U (en) | 2012-02-08 |
Family
ID=45554294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120229231U Expired - Fee Related CN202143259U (en) | 2011-07-01 | 2011-07-01 | Drive lighting circuit for LED light fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202143259U (en) |
-
2011
- 2011-07-01 CN CN201120229231U patent/CN202143259U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |