CN201904951U - LED intelligent control drive power supply based on digital processing unit - Google Patents
LED intelligent control drive power supply based on digital processing unit Download PDFInfo
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- CN201904951U CN201904951U CN2010206504790U CN201020650479U CN201904951U CN 201904951 U CN201904951 U CN 201904951U CN 2010206504790 U CN2010206504790 U CN 2010206504790U CN 201020650479 U CN201020650479 U CN 201020650479U CN 201904951 U CN201904951 U CN 201904951U
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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 relates to an LED intelligent control drive power supply based on a digital processing unit, which comprises an MCU (Microprogrammed Control Unit), an input power source circuit, a phase detection circuit and an output filter and reaction circuit, wherein, the MCU is provided with an AD conversion interface and a built-in PWM (pulse width modulation) circuit; the phase detection circuit is electrically connected with the input power source and used for detecting the phase difference of an input power source to gain dimming signals; the output filter and the reaction circuit is connected between an output secondary end of the input power source and the LED illuminating lamp and further connected with the AD conversion interface of the MCU; and the MCU and the phase detection circuit acquire dimming signals to perform dimming, the VCC (virtual channel connection) end of the MCU is connected with the output secondary end of the input power source, and a field effect transistor is connected between the output primary end of the input power source and the PWM circuit. The LED intelligent control drive power supply controls the work of the LED drive power supply and the realization of the dimming through the single MCU, simplifies the circuit and improves the system stability.
Description
Technical field
The utility model relates to the LED driving power, relates in particular to a kind of LED Based Intelligent Control driving power based on digital processing unit.
Background technology
Along with the day of natural resources is becoming tight, the energy-conservation consciousness of people also strengthens gradually.The development of green light modulation, Smart Home etc. has proposed new requirement to the tunable optical performance of lighting, and the perfect light source of light modulation just of the LED with snap switch characteristic and energy conservation characteristic.
Present LED driving power is to adopt MCU to add the combination of power supply control IC to realize constant current or constant voltage control and light modulation output control, but this structural circuit complexity, poor stability.
The utility model content
The utility model provides a kind of LED Based Intelligent Control driving power based on digital processing unit at the above-mentioned defective of prior art, to simplify circuit structure, the stability of intensifier circuit.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of LED Based Intelligent Control driving power based on digital processing unit, comprising: a MCU, this MCU have the AD translation interface and are built-in with pwm circuit; One input power circuit; One phase detecting circuit, this phase detecting circuit is connected with the input power circuit, is used to detect the phase difference of importing power supply and draws dim signal; One output filtering and feedback circuit, this output filtering and feedback circuit are connected between the output secondary end and LED lighting of input power supply, and output filtering and feedback circuit also are connected with the AD translation interface of MCU; Described MCU and phase detecting circuit obtain dim signal and carry out light modulation, and the VCC end of MCU is connected in the output secondary end of input power supply, are connected with a field-effect transistor between the output primary side of described pwm circuit and input power supply.
Preferably, described MCU is provided with 232 interfaces or I2C interface or is built-in with the dimmer procedure that produces dim signal.
As can be seen from the above technical solutions, the utility model is by the work of single MCU control LED driving power and the control of realization light modulation, simplified circuit structure, break the Based Intelligent Control drive power mode that IC adds MCU, realized the light modulation Based Intelligent Control more easily, make the more frivolous miniaturization of Dimmable LED driving power, have more market competition advantage for the built-in compact LED light fixture of driving power.Simultaneously, also improved the reliability of system, broken through the technical bottleneck that LED lamp pearl life-span and driving power life-span in the past are complementary, solved LED lamp pearl life-span preferably can reach more than 50,000 hours, and the driving power life-span is difficult to eldest child's difficult problem of reaching consistent.
Description of drawings
Accompanying drawing is the utility model functional-block diagram.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
Shown in accompanying drawing, the utility model comprises based on the LED Based Intelligent Control driving power of digital processing unit: a MCU processor 1, this processor have the AD translation interface and are built-in with pwm circuit; One input power circuit 2; One phase detecting circuit 3, this phase detecting circuit is connected with the input power circuit, is used to detect the phase difference of importing power supply and draws dim signal; One output filtering and feedback circuit 4, this output filtering and feedback circuit are connected between the output secondary end and LED lighting of input power supply, and output filtering and feedback circuit also are connected with the AD translation interface of MCU; Described MCU and phase detecting circuit obtain dim signal and carry out light modulation, the VCC end of MCU is connected in the output secondary end of input power supply, be connected with a field-effect transistor between the output primary side of described pwm circuit and input power supply, pwm circuit is connected in the grid of field-effect transistor, and the output primary side of input power supply is connected in the drain electrode of field-effect transistor, the source ground of field-effect transistor.Wherein, the voltage and current signal of the AD translation interface collection output by MCU, and with set point relatively, thereby the duty that the PID again by the MCU embedded software regulates PWM recently the Driving Field effect transistor regulate the output voltage electric current of power supply, realize the control of accurate constant current pressure limiting or constant voltage and current limiting.
Above-mentioned input power circuit has generally comprised EMS filtering, power filter and circuit of power factor correction.
As preferred implementation of the present utility model, MCU is provided with 232 interfaces or I2C interface, can obtain the external dimmer control signal by 232 interfaces or I2C interface, and the PWM duty that changes the MCU generation by dimming control signal is recently realized light modulation.MCU also can the built-in dimmer procedure that can produce dim signal, can realize multiple dimming modes such as timing dimming, remote control light modulating, phase dimming, the light modulation of 0-10V signal, DMAX light modulation easily by dimmer procedure.
Above-mentioned specific embodiment is purpose, feature and the effect that is used for describing in detail the utility model, for the personage who is familiar with this type of skill, according to the above description, may do part change and modification to this specific embodiment, its essence does not detach the spiritual category person of the utility model, all should be included in the claim of this case suitable first Chen Ming.
Claims (2)
1. the LED Based Intelligent Control driving power based on digital processing unit is characterized in that, comprising:
One MCU, this MCU have the AD translation interface and are built-in with pwm circuit;
One input power circuit;
One phase detecting circuit, this phase detecting circuit is connected with the input power circuit, is used to detect the phase difference of importing power supply and draws dim signal;
One output filtering and feedback circuit, this output filtering and feedback circuit are connected between the output secondary end and LED lighting of input power supply, and output filtering and feedback circuit also are connected with the AD translation interface of MCU;
Described MCU and phase detecting circuit obtain dim signal and carry out light modulation, and the VCC end of MCU is connected in the output secondary end of input power supply, are connected with a MOS FET between the output primary side of described pwm circuit and input power supply.
2. the LED Based Intelligent Control driving power based on digital processing unit according to claim 1 is characterized in that, described MCU is provided with 232 interfaces or I2C interface or is built-in with the dimmer procedure that produces dim signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206504790U CN201904951U (en) | 2010-12-09 | 2010-12-09 | LED intelligent control drive power supply based on digital processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206504790U CN201904951U (en) | 2010-12-09 | 2010-12-09 | LED intelligent control drive power supply based on digital processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904951U true CN201904951U (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206504790U Expired - Fee Related CN201904951U (en) | 2010-12-09 | 2010-12-09 | LED intelligent control drive power supply based on digital processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752920A (en) * | 2012-05-25 | 2012-10-24 | 苏州达方电子有限公司 | Integrated dimming control circuit |
| CN104080228A (en) * | 2013-03-27 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Detection control circuit of electric parameter of lamp |
-
2010
- 2010-12-09 CN CN2010206504790U patent/CN201904951U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752920A (en) * | 2012-05-25 | 2012-10-24 | 苏州达方电子有限公司 | Integrated dimming control circuit |
| CN104080228A (en) * | 2013-03-27 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Detection control circuit of electric parameter of lamp |
| CN104080228B (en) * | 2013-03-27 | 2016-08-03 | 海洋王（东莞）照明科技有限公司 | The detection control circuit of light fixture electric parameter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20161209 |