CN208029143U - LED power circuit with power factor regulation function - Google Patents
LED power circuit with power factor regulation function Download PDFInfo
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- CN208029143U CN208029143U CN201820192677.3U CN201820192677U CN208029143U CN 208029143 U CN208029143 U CN 208029143U CN 201820192677 U CN201820192677 U CN 201820192677U CN 208029143 U CN208029143 U CN 208029143U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of LED power circuits with power factor regulation function, including the mains electricity input end being linked in sequence, anti-surge protection circuit, industrial frequency rectifying circuit, inverter circuit, high-frequency rectification circuit, filter circuit and LED light driving power output end, circuit of power factor correction and pulse-width modulation circuit are equipped between the industrial frequency rectifying circuit and inverter circuit, feedback circuit is equipped between the circuit of power factor correction and LED light driving power output end, feedback circuit includes constant-current constant-voltage controller and photoelectrical coupler, LED light driving power output end connects the input terminal of constant-current constant-voltage controller, the output end of constant-current constant-voltage controller is connected to the input terminal of circuit of power factor correction by photoelectrical coupler.The Switching Power Supply performance of the utility model is good, and reliable operation can obtain the illuminating effect of stable high quality.
Description
Technical field
The utility model is related to a kind of LED illumination power technique fields, have more particularly to a kind of using effect is good
The LED power circuit of power factor regulation function.
Background technology
The luminous intensity of LED light is determined that when especially high-power LED lamp works, electric current is too strong by the electric current for flowing through LED
The decaying of LED, the excessively weak luminous intensity that can influence LED of electric current, therefore the driving of LED can be caused to need to provide constant-current supply, with
Ensure the safety that great power LED uses, while reaching ideal luminous intensity.Exist at present with electricity driving great power LED
Transfer efficiency is high, anti-electromagnetism and the problems such as harmonic wave interference, influences illuminating effect, it is therefore desirable to be improved.
Utility model content
Purpose of utility model：In order to overcome the deficiencies in the prior art, the utility model to provide a kind of with power
The LED power circuit of factor regulatory function, Switching Power Supply performance is good, high conversion efficiency, reliable operation, can obtain stable
The illuminating effect of high quality.
Technical solution：To achieve the above object, the technical solution adopted in the utility model is：
A kind of LED power circuit with power factor regulation function, it is characterised in that：Alternating current including being linked in sequence is defeated
Enter end, anti-surge protection circuit, industrial frequency rectifying circuit, inverter circuit, high-frequency rectification circuit, filter circuit and LED light driving electricity
Source output terminal is equipped with circuit of power factor correction and pulse-width modulation circuit, institute between the industrial frequency rectifying circuit and inverter circuit
It states and is equipped with feedback circuit between circuit of power factor correction and LED light driving power output end, feedback circuit includes constant current constant voltage
Controller and photoelectrical coupler, LED light driving power output end connect the input terminal of constant-current constant-voltage controller, constant current constant voltage control
The output end of device is connected to the input terminal of circuit of power factor correction, feedback circuit, PFC by photoelectrical coupler
Circuit and pulse-width modulation circuit are used to make LED light driving power output end output constant current signal.
Preferably, the filter circuit includes LC filter circuits and EMI filter circuit.
Preferably, the constant-current constant-voltage controller uses constant-current constant-voltage controller part TSM101.
Preferably, the circuit of power factor correction uses active power factor correction controller part L6561.
Advantageous effect：A kind of LED power circuit with power factor regulation function provided by the utility model, switch
Power source performance is good, reliable operation, can obtain the illuminating effect of stable high quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of a preferred implementation of the utility model.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings.
It is as shown in Figure 1 a kind of LED power circuit with power factor regulation function, including the alternating current being linked in sequence is defeated
Enter end 1, anti-surge protection circuit 2, industrial frequency rectifying circuit 3, inverter circuit 4, high-frequency rectification circuit 5, filter circuit 6 and LED light
Driving power output end 7, wherein circuit of power factor correction 8 and pulsewidth are equipped between industrial frequency rectifying circuit 3 and inverter circuit 4
Modulation circuit 9 is equipped with feedback circuit 10, feedback circuit between circuit of power factor correction 8 and LED light driving power output end 7
10 include constant-current constant-voltage controller 101 and photoelectrical coupler 102, and LED light driving power output end 7 connects constant-current constant-voltage controller
The output end of 101 input terminal, constant-current constant-voltage controller 101 is connected to circuit of power factor correction 8 by photoelectrical coupler 102
Input terminal, feedback circuit 10, circuit of power factor correction 8 and pulse-width modulation circuit 9 are used to keep LED light driving power 7 defeated
Outlet output constant current signal.
In the present embodiment, development research and development and the constant current using comparative maturity on the market can be used in constant-current constant-voltage controller 101
Isobarically Control device TSM101 has inside synthesized sample circuit, transistor circuit and comparator etc., circuit of power factor correction 8
Using active power factor correction controller part L6561, pass through feedback circuit 10, circuit of power factor correction 8 and pulsewidth modulation
The cooperation of circuit 9 carries out sampling and in real time analysis, to whole by electric current to LED light driving power output end 7 and voltage signal
The relevant parameter of current circuit, inverter circuit and filter circuit is adjusted in real time, keeps LED light driving power output end 7 defeated
Go out the drive signal of power invariability, obtains the illuminating effect of high quality, stabilization.
As the preferred of the present embodiment, filter circuit 6 includes LC filter circuits and EMI filter circuit, can remove including
Clutter including harmonic wave.
The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of LED power circuit with power factor regulation function, it is characterised in that：Including the alternating current input being linked in sequence
End, anti-surge protection circuit, industrial frequency rectifying circuit, inverter circuit, high-frequency rectification circuit, filter circuit and LED light driving power
Output end is equipped with circuit of power factor correction and pulse-width modulation circuit between the industrial frequency rectifying circuit and inverter circuit, described
Feedback circuit is equipped between circuit of power factor correction and LED light driving power output end, feedback circuit includes constant current constant voltage control
Device and photoelectrical coupler processed, LED light driving power output end connect the input terminal of constant-current constant-voltage controller, constant-current constant-voltage controller
Output end the input terminal of circuit of power factor correction, feedback circuit, PFC electricity are connected to by photoelectrical coupler
Road and pulse-width modulation circuit are used to make LED light driving power output end output constant current signal.
2. a kind of LED power circuit with power factor regulation function according to claim 1, it is characterised in that：Institute
It includes LC filter circuits and EMI filter circuit to state filter circuit.
3. a kind of LED power circuit with power factor regulation function according to claim 1, it is characterised in that：Institute
It states constant-current constant-voltage controller and uses constant-current constant-voltage controller part TSM101.
4. a kind of LED power circuit with power factor regulation function according to claim 1, it is characterised in that：Institute
It states circuit of power factor correction and uses active power factor correction controller part L6561.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192677.3U CN208029143U (en) | 2018-02-05 | 2018-02-05 | LED power circuit with power factor regulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192677.3U CN208029143U (en) | 2018-02-05 | 2018-02-05 | LED power circuit with power factor regulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208029143U true CN208029143U (en) | 2018-10-30 |
Family
ID=63904254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820192677.3U Active CN208029143U (en) | 2018-02-05 | 2018-02-05 | LED power circuit with power factor regulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208029143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113847A (en) * | 2019-06-18 | 2019-08-09 | 深圳市卢瑟福科技有限公司 | A kind of LED control method and equipment |
-
2018
- 2018-02-05 CN CN201820192677.3U patent/CN208029143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113847A (en) * | 2019-06-18 | 2019-08-09 | 深圳市卢瑟福科技有限公司 | A kind of LED control method and equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200426 Address after: Zone B, floor 1, east side of workshop, Taihe South Road, Duanzhou 7th Road, Zhaoqing City, Guangdong Province Patentee after: ZHAOQING BOSHIXIN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 312599 Zhejiang city of Shaoxing province Xinchang County Qixing Street Gushan Road No. 741 (Four Seasons Garden Building 1) Patentee before: XINCHANG SICHUANG DESIGN CONSULTING Co.,Ltd. |