CN204392646U - A kind of time control high-power LED driving power source - Google Patents
A kind of time control high-power LED driving power source Download PDFInfo
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- CN204392646U CN204392646U CN201520047890.1U CN201520047890U CN204392646U CN 204392646 U CN204392646 U CN 204392646U CN 201520047890 U CN201520047890 U CN 201520047890U CN 204392646 U CN204392646 U CN 204392646U
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- circuit
- time control
- driving power
- led driving
- power source
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a kind of time control high-power LED driving power source, it comprises the pfc circuit, half-bridge logical link control (LLC) resonant translation circuit, transformer and the circuit of synchronous rectification that connect successively, described pfc circuit input external power supply, described circuit of synchronous rectification output connects LED light source; Also comprise feedback circuit, governor circuit and time control module, described circuit of synchronous rectification output is respectively by feedback circuit and time control model calling governor circuit input, and described governor circuit output connects half-bridge logical link control (LLC) resonant translation circuit.Beneficial effect is, by the connection of half-bridge logical link control (LLC) resonant translation circuit and space-time module and governor circuit, makes driving power can automatically adjust the brightness of LED lamp according to the time, realizes energy-conservation object.
Description
Technical field
The utility model relates to LED power field, especially a kind of time control high-power driving power supply.
Background technology
LED drive power is to provide the device of LED illumination electric energy, so driving power should have, DC control, high efficiency, high reliability, thermal diffusivity are good, overvoltage protection, can realize the characteristics such as PWM light modulation, miniature dimensions; The LED light source life-span is often more than 50,000 hours, if driving power designs bad, by not only efficiency is low, be difficult to reach energy-saving effect, and the life-span is often below 10,000 hours, whole lighting can be caused like this to have a greatly reduced quality actual life; Especially LED street lamp, the fault because of power supply accounts for about 70% of whole street lamp fault.
At present, the requirement of LED drive power is also improving constantly; Such as: high efficiency, High Power Factor, Secure isolation, meet EMI standard, high current control accuracy, high reliability, volume is little, cost is low etc. has become the critical evaluation index of LED drive power; And the LED illumination lamp with dimming function can be economized on electricity on the one hand, extend the useful life of light fixture, can combine with technology of Internet of things on the other hand, and build comfortable lighting environment according to site requirements, realize intelligent lighting; So tunable optical driving power is one of key technology of intellectualized LED illumination, and existing LED drive power can't control according to the luminescence of time to LED drive power automatically, and realization can only PWM light modulation.
Therefore, prior art has yet to be improved and developed.
Utility model content
The purpose of this utility model is to provide a kind of time control high-power LED driving power source, is intended to solve the PWM light modulation that existing high-power LED driving power source can not realize intelligence, causes LED lamp short for useful life, the technical problem of waste electric energy.
The technical solution of the utility model is as follows: a kind of time control high-power LED driving power source, it comprises the pfc circuit, half-bridge logical link control (LLC) resonant translation circuit, transformer and the circuit of synchronous rectification that connect successively, described pfc circuit input external power supply, described circuit of synchronous rectification output connects LED light source; Also comprise feedback circuit, governor circuit and time control module, described circuit of synchronous rectification output is respectively by feedback circuit and time control model calling governor circuit input, and described governor circuit output connects half-bridge logical link control (LLC) resonant translation circuit.
Described time control high-power LED driving power source, wherein, described time control module also comprises clock chip, microcontroller and power conversion chip, after power conversion chip is connected with circuit of synchronous rectification, then is electrically connected with clock chip, microcontroller respectively; Described microcontroller passes through I
2c interface and clock chip transmit data, and pass through the interrupt signal of interrupting input port INT receive clock chip.
Described time control high-power LED driving power source, wherein, described microcontroller is connected with governor circuit by output pwm signal.
Described time control high-power LED driving power source, wherein, described time control module also comprises the reserve battery be connected with clock chip.
Described time control high-power LED driving power source, wherein, described power conversion chip is TPS70933 power supply chip.
Described time control high-power LED driving power source, wherein, described microcontroller is the AVR single chip ATtiny24 of 8.
Described time control high-power LED driving power source, wherein, described clock chip is the clock chip that 16 pin SO encapsulate DS3231, inner integrated temperature compensating crystal oscillator and crystal.
The beneficial effects of the utility model: the utility model is converted electric current by half-bridge logical link control (LLC) resonant translation circuit, make it the use of applicable LED, and by a feedback circuit and governor circuit and half-bridge logical link control (LLC) resonant translation circuit, an adjustment is carried out to electric power outputting current, guarantee that the electric current that driving power is transferred to LED lamp keeps stable, can not be excessively high or low, play the effect of a protective circuit and saving electric energy, the present invention simultaneously exports a pwm signal to governor circuit with crossing time control module, LED drive power is controlled, specific pwm signal is exported in the time of setting, realize the PWM light modulation of driving power, driving power is made can automatically to adjust the brightness of LED lamp according to the time, realize energy-conservation object.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Fig. 3 is the workflow diagram of time control module of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, clearly, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
As shown in Figure 1-2, the utility model discloses a kind of time control high-power LED driving power source, comprise the pfc circuit 1 of access civil power, half-bridge logical link control (LLC) resonant translation circuit 2, transformer 3, output current to the circuit of synchronous rectification 4 of LED light source 5, feedback circuit 7, governor circuit 6 and time control module 8; Described pfc circuit 1, half-bridge logical link control (LLC) resonant translation circuit 2, transformer 3, circuit of synchronous rectification 4 connect successively; Described circuit of synchronous rectification 4 also connects with time control module 8 and feedback circuit 7 respectively; Described governor circuit 6 is connected with time control module 8, feedback circuit 7 and half-bridge logical link control (LLC) resonant translation circuit 2 respectively.
After adopting said structure, the utility model sends PWM dim signal to main control module 6 by time control module 8 according to the time of setting, the time that can set according to time control module 8 of power supply is adjusted automatically, thus realize the brightness of the light fixture according to time adjustment LED, reach the object of saves energy; Governor circuit is connected with half-bridge logical link control (LLC) resonant translation circuit 2 and feedback circuit 7, the current constant that driving power exports can also be guaranteed, there will not be too high or too low situation, ensure that LED lamp can be stable running, and can at high current control accuracy, reliability is higher, volume is less, cost is lower, and certain degree extends the useful life of light fixture.
Furtherly, above-mentioned time control module 8 also comprises clock chip 81, microcontroller 82 and power conversion chip 83, after power conversion chip 83 is connected with circuit of synchronous rectification 4, then is electrically connected with clock chip 81 and microcontroller 82 respectively; Described microcontroller 82 passes through I
2c interface and clock chip 81 transmit data, and pass through the interrupt signal of interrupting input port INT receive clock chip 81.
Above-mentioned microcontroller 81 is connected with governor circuit 6 by output pwm signal.
In actual use, microcontroller 82 passes through I
2c interface (SCL, SDA) and clock chip 81 transmit data, and pass through the interrupt signal of interrupting input port INT receive clock chip 81; Microcontroller 82 output pwm signal, to the governor circuit 6 of driving power, can realize the function of opening LED, regulating brightness, closing LED, realize the light modulation of 0 ~ 100%.
In actual use, above-mentioned power conversion chip 83 is TPS70933 power supply chip, the voltage that circuit of synchronous rectification 4 transmits can be changed, voltage or electric current is made to meet the use of clock chip, the input voltage of this power conversion chip 83 is 5-30V, output voltage after changing is 3.3V, can provide stable voltage for AVR single chip chip and clock chip 81.
In real work, described time control module 8 also comprises the reserve battery 84 be connected with clock chip 81, when externally fed disconnects, reserve battery 84 still can maintain the power supply of clock chip 81, ensure that clock chip 81 runs well, the time continues to run, and continues to keep accurate timing.
Furtherly, above-mentioned microcontroller 82 is the AVR single chip ATtiny24 of 8.
Described clock chip 81 is the clock chip that 16 pin SO encapsulate DS3231, inner integrated temperature compensating crystal oscillator and crystal.
The utility model by using above-mentioned DS3231 clock chip, this chip save second, point, time, week, the date, Month And Year information; And be less than the month of 31 days, will automatically adjusting the date at the end of month, comprise the correction in leap year; The accuracy that the time that improves calculates for a long time.
Operation principle: civil power carries out power factor correction through pfc circuit 1, then be transferred to half-bridge half-bridge logical link control (LLC) resonant translation circuit 2 and realize current transformation, be transferred to transformer 3 and circuit of synchronous rectification 4 again, finally the electric current through circuit of synchronous rectification 4 is flowed to LED light source 5, be both circuit of synchronous rectification 4 and also current delivery gone directly half-bridge logical link control (LLC) resonant translation circuit 2 to feedback circuit 7 and governor circuit 6; Circuit of synchronous rectification 4 is also powered for time control module 8, makes time control module 8 pwm signal can be sent to governor circuit 6, controls driving power, realizes the brightness of the light fixture according to time adjustment LED.
As shown in Figure 3, the workflow of time control module is by after microcontroller ATtiny24 powers on, initialization input/output port, then initialization I
2c interface, arranges the pwm signal of timing output at clock chip; After completing initialization clock chip, pass through I
2c interface access clock chip, checks whether real-time clock fault register represents normal, turns off the light if fault is just given tacit consent to, if the time register of normal just access real-time clock reads the time; Then in the look-up table (LUT) of program, find the preset value corresponding to this time period, control to turn on light, turn off the light or light modulation according to preset value again, such as: as 0 expression is turned off the light, 1 expression is turned on light, 2 represent light modulation etc., can realize various light time control scheme by editor's look-up table (LUT); Last microcontroller enters sleep energy-saving mode, until after receiving real-time clock interrupt signal, then performs an aforesaid operations.
The utility model is converted electric current by half-bridge logical link control (LLC) resonant translation circuit, make it the use of applicable LED, and by a feedback circuit and governor circuit and half-bridge logical link control (LLC) resonant translation circuit, an adjustment is carried out to electric power outputting current, guarantee that the electric current that driving power is transferred to LED lamp keeps stable, can not be excessively high or low, play the effect of a protective circuit and saving electric energy, the present invention simultaneously exports a pwm signal to governor circuit with crossing time control circuit, LED drive power is controlled, specific pwm signal is exported in the time of setting, realize the PWM light modulation of driving power, driving power is made can automatically to adjust the brightness of LED lamp according to the time, realize energy-conservation object.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection range that all should belong to the utility model claims.
Claims (7)
1. a time control high-power LED driving power source, it is characterized in that, comprise the pfc circuit, half-bridge logical link control (LLC) resonant translation circuit, transformer and the circuit of synchronous rectification that connect successively, described pfc circuit input external power supply, described circuit of synchronous rectification output connects LED light source; Also comprise feedback circuit, governor circuit and time control module, described circuit of synchronous rectification output is respectively by feedback circuit and time control model calling governor circuit input, and described governor circuit output connects half-bridge logical link control (LLC) resonant translation circuit.
2. time control high-power LED driving power source according to claim 1, it is characterized in that, described time control module also comprises clock chip, microcontroller and power conversion chip, after power conversion chip is connected with circuit of synchronous rectification, then is electrically connected with clock chip, microcontroller respectively; Described microcontroller passes through I
2c interface and clock chip transmit data, and pass through the interrupt signal of interrupting input port INT receive clock chip.
3. time control high-power LED driving power source according to claim 2, is characterized in that, described microcontroller is connected with governor circuit by output pwm signal.
4. time control high-power LED driving power source according to claim 2, is characterized in that, described time control module also comprises the reserve battery be connected with clock chip.
5. time control high-power LED driving power source according to claim 2, is characterized in that, described power conversion chip is TPS70933 power supply chip.
6. time control high-power LED driving power source according to claim 2, is characterized in that, described microcontroller is the AVR single chip ATtiny24 of 8.
7. time control high-power LED driving power source according to claim 2, is characterized in that, described clock chip is the clock chip that 16 pin SO encapsulate DS3231, inner integrated temperature compensating crystal oscillator and crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047890.1U CN204392646U (en) | 2015-01-23 | 2015-01-23 | A kind of time control high-power LED driving power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047890.1U CN204392646U (en) | 2015-01-23 | 2015-01-23 | A kind of time control high-power LED driving power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392646U true CN204392646U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047890.1U Expired - Fee Related CN204392646U (en) | 2015-01-23 | 2015-01-23 | A kind of time control high-power LED driving power source |
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| CN (1) | CN204392646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202279A (en) * | 2017-07-27 | 2017-09-26 | 佛山市维瑞克科技有限公司 | A kind of LED tunnel lamp |
| CN108934106A (en) * | 2018-04-16 | 2018-12-04 | 长沙百联明卓电子科技有限公司 | A kind of intelligent control light modulation method |
-
2015
- 2015-01-23 CN CN201520047890.1U patent/CN204392646U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202279A (en) * | 2017-07-27 | 2017-09-26 | 佛山市维瑞克科技有限公司 | A kind of LED tunnel lamp |
| CN108934106A (en) * | 2018-04-16 | 2018-12-04 | 长沙百联明卓电子科技有限公司 | A kind of intelligent control light modulation method |
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| 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: 20150610 Termination date: 20160123 |
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| EXPY | Termination of patent right or utility model |