CN206302600U - A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application - Google Patents
A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application Download PDFInfo
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- CN206302600U CN206302600U CN201621270566.7U CN201621270566U CN206302600U CN 206302600 U CN206302600 U CN 206302600U CN 201621270566 U CN201621270566 U CN 201621270566U CN 206302600 U CN206302600 U CN 206302600U
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- power supply
- light bar
- led light
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Abstract
The purpose of this utility model is the high-voltage LED light bar for providing a kind of high-voltage LED light bar driving power supply and its application, high-voltage LED light bar driving power supply includes power supply circuit, LLC resonant converter and constant current constant voltage output control circuit, wherein LLC resonant converter includes LLC governor circuits, transformer and current rectifying and wave filtering circuit, the output end of current rectifying and wave filtering circuit provides power supply for LED, constant current constant voltage output control circuit is monitored and controlled the electric current and voltage of the output end of current rectifying and wave filtering circuit, constant current constant voltage output control circuit simultaneously feeds back signal to LLC governor circuits, it solves the problems, such as that stroboscopic problem and brightness are easily varied, make high-voltage LED light bar work more to stablize.
Description
Technical field
The utility model is related to the LED of a kind of high-voltage LED light bar driving power supply and its application.
Background technology
At present, general LED is all low-voltage DC supply, but also has high-voltage LED light bar, and industry will light height at present
The method for pressing LED is lighted after direct rectification, and output voltage electric current is unstable, and the ripple with 100HZ cannot go
Fall, cause stroboscopic, this is that the use of human eye long-time cannot receive；In addition, when civil power is AC-220V, voltage slightly fluctuates,
The brightness of high-voltage LED light bar is changed significantly, and curent change is big, and such as input voltage reaches 265V or higher is, high-voltage LED
The electric current of light bar will be increased considerably, and can greatly reduce the service life of high-voltage LED light bar.
The content of the invention
A purpose of the present utility model is the LED for providing high-voltage LED light bar driving power supply and its application, and he is defeated
The power supply and frequency for providing crossing current constant pressure are stablized relatively, solve the problems, such as that stroboscopic problem and brightness are easily varied, and make high-voltage LED lamp
Band work is more stablized.
Another object of the present utility model provides high-voltage LED light bar driving power supply, can there is a mains wider
Input, frequency range is 47HZ-63HZ, and voltage range is 100V to 265V.
Above-mentioned purpose is achieved by the following technical solution：
A kind of high-voltage LED light bar driving power supply, it is characterised in that：It includes power supply circuit, LLC resonant converter and constant current
Constant-voltage output control circuit, the input connection mains input of power supply circuit, power supply circuit provides electricity for each several part circuit
Source, wherein LLC resonant converter include LLC governor circuits, transformer and current rectifying and wave filtering circuit, the output end of current rectifying and wave filtering circuit
For LED provides power supply, constant current constant voltage output control circuit be monitored and controlled the output end of current rectifying and wave filtering circuit electric current and
Voltage, constant current constant voltage output control circuit simultaneously feeds back signal to LLC governor circuits.
Power supply circuit EMC circuits described above, rectifier, DC-DC reduction voltage circuits and pfc circuit, mains input
It is connected to the input of rectifier by EMC circuits, the output end of rectifier provides HVDC Vdc for LLC resonant converter,
The output end of rectifier connects the input of DC-DC reduction voltage circuits, and the output end of DC-DC reduction voltage circuits provides low-voltage DC
Vcc1 and Vcc2；The input of pfc circuit connects the output end of rectifier, and the output end of pfc circuit controls the work of rectifier.
HVDC Vdc described above is in 380V to 400V.
The low-voltage DC Vcc1 and Vcc2 of the output end of DC-DC reduction voltage circuits described above are respectively+5V and+15V.
Constant current constant voltage output control circuit described above include current detection circuit, voltage detecting circuit, control chip,
Photoelectric coupling circuit and voltage-regulator diode operating circuit, wherein voltage-regulator diode operating circuit one end connect the defeated of current rectifying and wave filtering circuit
Go out end, current detection circuit, voltage detecting circuit detect the electric current and voltage signal of the output end of current rectifying and wave filtering circuit simultaneously respectively
Control chip is sent to, the output end control voltage-regulator diode operating circuit work of control chip, photoelectric coupling circuit is used to detect steady
The state of diode operation circuit is pressed, and feeds back signal to LLC governor circuits.
The output end of current rectifying and wave filtering circuit described above provides the model of the frequency in 50HZ to 80HZ of power supply for LED
Enclose.
The output end of current rectifying and wave filtering circuit described above provides constant voltage supply for LED, and voltage is 220VDC,
The frequency range of mains input is 47HZ-63HZ, and voltage range is 100V to 265V.
A kind of high-voltage LED light bar, including light bar and driving power supply, described driving power supply are above-mentioned high-voltage LED light bar
Driving power supply.
The utility model has the following advantages that：
1st, the utility model includes power supply circuit, LLC resonant converter and constant current constant voltage output control circuit, LLC resonance
Converter includes LLC governor circuits, transformer and current rectifying and wave filtering circuit, and the output end of current rectifying and wave filtering circuit is provided for LED
Power supply, constant current constant voltage output control circuit is monitored and controlled the electric current and voltage of the output end of current rectifying and wave filtering circuit, constant current constant voltage
Output control circuit simultaneously feeds back signal to LLC governor circuits；It can provide constant pressure and flow and power, and utilize LLC resonant converter
The ripple of high frequency is removed, stroboscopic is solved the problems, such as, while ensure the brightness stability of high-voltage LED light bar, applied widely, work
Stabilization.
2nd, power supply circuit includes EMC circuits, rectifier, DC-DC reduction voltage circuits and pfc circuit, and EMC circuits effectively suppress electricity
Magnetic disturbance signal, pfc circuit improves the power factor of power supply circuit, so that power supply circuit work is more efficiently and stable.
3rd, the frequency range of the mains input of high-voltage LED light bar driving power supply of the invention is 47HZ-63HZ, voltage
Scope is 100V to 265V, applied widely.
4th, constant current constant voltage output control circuit includes current detection circuit, voltage detecting circuit, control chip, photoelectric coupling
Device and voltage-regulator diode operating circuit, wherein voltage-regulator diode operating circuit one end connect the output end of current rectifying and wave filtering circuit, electricity
Current detection circuit, voltage detecting circuit detect the electric current and voltage signal of the output end of current rectifying and wave filtering circuit and are sent to control respectively
Chip, the output end control voltage-regulator diode operating circuit work of control chip, photoelectric coupling circuit is used to detect voltage-regulator diode
The state of operating circuit, and LLC governor circuits are fed back signal to, circuit structure is simple, low cost of manufacture.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model
Fig. 2 is the detailed circuit block diagram of power supply circuit of the present utility model；
Fig. 3 is the specific block diagram of LLC resonant converter of the present utility model and constant current constant voltage output control circuit part.
Specific embodiment：
Embodiment one：
As shown in Figure 1 to Figure 3, a kind of high-voltage LED light bar driving power supply of the present utility model, including power supply circuit, LLC are humorous
Shake converter and constant current constant voltage output control circuit, the input connection mains input of power supply circuit, and power supply circuit is each
Partial circuit provides power supply, and wherein LLC resonant converter includes LLC governor circuits, transformer and current rectifying and wave filtering circuit, rectification filter
The output end of wave circuit provides power supply for LED, and constant current constant voltage output control circuit is monitored and controlled current rectifying and wave filtering circuit
The electric current and voltage of output end, constant current constant voltage output control circuit simultaneously feed back signal to LLC governor circuits.
As shown in Fig. 2 power supply circuit described above includes EMC circuits, rectifier, DC-DC reduction voltage circuits and PFC electricity
Road, mains input is connected to the input of rectifier by EMC circuits, and the output end of rectifier is LLC resonant converter
HVDC Vdc is provided, the output end of rectifier connects the input of DC-DC reduction voltage circuits, the output end of DC-DC reduction voltage circuits
Low-voltage DC Vcc1 and Vcc2 are provided；The input of pfc circuit connects the output end of rectifier, the output end control of pfc circuit
The work of rectifier processed.Above-mentioned HVDC Vdc is in 380V to 400V, the low-voltage DC of the output end of DC-DC reduction voltage circuits
Vcc1 and Vcc2 are respectively+5V and+15V.
Above-mentioned constant current constant voltage output control circuit includes current detection circuit, voltage detecting circuit, control chip, photoelectricity lotus root
Clutch and voltage-regulator diode operating circuit, voltage-regulator diode operating circuit are in series by voltage-stabiliser tube D1 and resistance R1, wherein surely
Pressure diode operation circuit on one side connects the output end of current rectifying and wave filtering circuit, the other end connection control of voltage-regulator diode operating circuit
The output pin of coremaking piece, current detection circuit, voltage detecting circuit detect respectively the output end of current rectifying and wave filtering circuit electric current and
Voltage signal is simultaneously sent to control chip, the output end control voltage-regulator diode operating circuit work of control chip, photoelectric coupling circuit
For detecting the state of voltage-regulator diode operating circuit, and LLC governor circuits are fed back signal to, photoelectric coupling circuit is connected in parallel on resistance
The two ends of R1, play a part of to isolate high pressure and low pressure.
The output end of current rectifying and wave filtering circuit provides the scope of the frequency in 50HZ to 80HZ of power supply for high-voltage LED light bar, whole
The output end of filter circuit is flowed for high-voltage LED light bar provides constant voltage supply, and voltage is 220VDC, and electric current is 1.2A, certainly
The two parameters are all adjustable, and the frequency range of mains input is 47HZ-63HZ, and voltage range is 100V to 265V,
It is applied widely.
Embodiment two：
A kind of high-voltage LED light bar, including light bar and driving power supply, described driving power supply are the high-voltage LEDs of embodiment one
Light bar driving power supply.
After preferred embodiment of the present utility model is described in detail, those of ordinary skill in the art can be clearly
Solution, various change can be carried out in the case where the protection domain of appended claims and spirit is not departed from and is changed, and the utility model is also
It is not only restricted to the implementation method of examples cited embodiment in specification.It should be noted that word " including " be not excluded for other elements or
Step.In addition, any element label of claim should not be construed as limiting scope of the present utility model.
Claims (8)
1. a kind of high-voltage LED light bar driving power supply, it is characterised in that：It includes that power supply circuit, LLC resonant converter and constant current are permanent
Pressure output control circuit, the input connection mains input of power supply circuit, power supply circuit provides power supply for each several part circuit,
Wherein LLC resonant converter includes LLC governor circuits, transformer and current rectifying and wave filtering circuit, and the output end of current rectifying and wave filtering circuit is
LED provides power supply, and constant current constant voltage output control circuit is monitored and controlled the electric current and electricity of the output end of current rectifying and wave filtering circuit
Pressure, constant current constant voltage output control circuit simultaneously feeds back signal to LLC governor circuits.
2. a kind of high-voltage LED light bar driving power supply according to claim 1, it is characterised in that：Power supply circuit includes EMC electricity
Road, rectifier, DC-DC reduction voltage circuits and pfc circuit, mains input are connected to the input of rectifier by EMC circuits,
The output end of rectifier provides HVDC Vdc, the output end connection DC-DC reduction voltage circuits of rectifier for LLC resonant converter
Input, the output end of DC-DC reduction voltage circuits provides low-voltage DC Vcc1 and Vcc2；The input connection of pfc circuit is whole
The output end of device is flowed, the output end of pfc circuit controls the work of rectifier.
3. a kind of high-voltage LED light bar driving power supply according to claim 2, it is characterised in that：HVDC Vdc is in 380V
To 400V.
4. a kind of high-voltage LED light bar driving power supply according to claim 3, it is characterised in that：DC-DC reduction voltage circuits it is defeated
The low-voltage DC Vcc1 and Vcc2 for going out end are respectively+5V and+15V.
5. a kind of high-voltage LED light bar driving power supply according to claim 1,2,3 or 4, it is characterised in that：Constant current constant voltage is defeated
Going out to control circuit includes current detection circuit, voltage detecting circuit, control chip, photoelectric coupling circuit and voltage-regulator diode work electricity
Road, wherein voltage-regulator diode operating circuit one end connect the output end of current rectifying and wave filtering circuit, current detection circuit, voltage detecting electricity
Road detects the electric current and voltage signal of the output end of current rectifying and wave filtering circuit and is sent to control chip respectively, the output end of control chip
Control voltage-regulator diode operating circuit work, photoelectric coupling circuit is used to detect the state of voltage-regulator diode operating circuit, and feeds back
Signal is to LLC governor circuits.
6. a kind of high-voltage LED light bar driving power supply according to claim 5, it is characterised in that：Current rectifying and wave filtering circuit it is defeated
Go out scope of the frequency in 50HZ to 80HZ that end provides power supply for LED.
7. a kind of high-voltage LED light bar driving power supply according to claim 5, it is characterised in that：Current rectifying and wave filtering circuit it is defeated
Go out end for LED provides constant voltage supply, voltage is 220VDC, and the frequency range of mains input is 47HZ-63HZ,
Voltage range is 100V to 265V.
8. a kind of high-voltage LED light bar, including light bar and driving power supply, it is characterised in that：Described driving power supply is claim 1
To the high-voltage LED light bar driving power supply of 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270566.7U CN206302600U (en) | 2016-11-25 | 2016-11-25 | A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270566.7U CN206302600U (en) | 2016-11-25 | 2016-11-25 | A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302600U true CN206302600U (en) | 2017-07-04 |
Family
ID=59213376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621270566.7U Expired - Fee Related CN206302600U (en) | 2016-11-25 | 2016-11-25 | A kind of high-voltage LED light bar driving power supply and its high-voltage LED light bar of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531420A (en) * | 2021-06-28 | 2021-10-22 | 中山市松普电器照明有限公司 | Flexible LED lamp strip with rectifier bridge |
| CN114501729A (en) * | 2022-03-04 | 2022-05-13 | 深圳市金永信科技有限公司 | LED driving power circuit with high power and high alternating voltage |
-
2016
- 2016-11-25 CN CN201621270566.7U patent/CN206302600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531420A (en) * | 2021-06-28 | 2021-10-22 | 中山市松普电器照明有限公司 | Flexible LED lamp strip with rectifier bridge |
| CN114501729A (en) * | 2022-03-04 | 2022-05-13 | 深圳市金永信科技有限公司 | LED driving power circuit with high power and high alternating voltage |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20181125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |