CN202059626U - LED intelligent driver - Google Patents
LED intelligent driver Download PDFInfo
- Publication number
- CN202059626U CN202059626U CN2011201042183U CN201120104218U CN202059626U CN 202059626 U CN202059626 U CN 202059626U CN 2011201042183 U CN2011201042183 U CN 2011201042183U CN 201120104218 U CN201120104218 U CN 201120104218U CN 202059626 U CN202059626 U CN 202059626U
- Authority
- CN
- China
- Prior art keywords
- led
- detection module
- voltage stabilizing
- mcu
- stabilizing circuit
- Prior art date
- 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
Links
Images
Classifications
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an LED intelligent driver, which comprises an EMI filter, an AC/DC rectification circuit, a DC/DC voltage stabilizing circuit, an LED, an MCU and an LDO, wherein AC current successively passes through the EMI filter, the AC/DC rectification circuit and the DC/DC voltage stabilizing circuit and is transmitted to the LED, a voltage and current detection module is arranged between the AC/DC rectification circuit and the DC/DC voltage stabilizing circuit, the LDO is arranged between the DC/DC voltage stabilizing circuit and the LED, the LDO is provided with an output detection module, the LED is provided with a first temperature detection module, detection results of the output detection module, the first temperature detection module and the voltage and current detection module are respectively transmitted to the MCU, and the MCU processes the detection results respectively and adjusts the DC/DC voltage stabilizing circuit through driving. Under the three leveled functions of PFC, DC/DC and LDO, power factor of the LED intelligent driver is higher than 0.98, and efficiency of the whole driver is higher than 88%. Based on the MCU, full-function protections, which comprise over-voltage protection, over-current protection, over-temperature protection and LED overheating protection, are realized, therefore, high reliability of the whole circuit is realized, hardware cost is substantially saved, and cost performance of the LED driver is improved.
Description
Technical field
The utility model relates to a kind of LED intelligent driver.
Background technology
Present LED illumination is little because of having power consumption, long service life, and the low and luminous advantage such as stablize of thermal radiation has been substituted the dominant position of former incandescent lamp gradually.Because being its output and drive currents, the electrical characteristics of LED are directly proportional, so the qualitative requirement to driving power is higher, if LED works under non-constant electric current, can cause luminous instability, illuminating effect is not good, damage easily and reduce its useful life, therefore, reliable and stable drive circuit is one of core in the LED lighting apparatus.But at present LED on the market drives obviously has power factor low, and efficient is not high, and occurs overvoltage, overcurrent easily, crosses the overheated situation of gentle LED, makes step-down in its in useful life.
The utility model content
At above-mentioned the deficiencies in the prior art part, the utility model provides a kind of High Power Factor, high-efficiency LED intelligent driver, and defencive function is complete, has solved the problem that above-mentioned prior art exists effectively.
To achieve these goals, the technical solution adopted in the utility model is: a kind of LED intelligent driver, comprise electromagnetic interface filter, the AC/DC rectification circuit, DC/DC voltage stabilizing circuit and LED, the AC electric current passes through electromagnetic interface filter successively, AC/DC rectification circuit and DC/DC voltage stabilizing circuit are delivered to LED, also include MCU and LDO, between AC/DC rectification circuit and DC/DC voltage stabilizing circuit, be provided with voltage, current detection module, described LDO is located between DC/DC voltage stabilizing circuit and the LED, establish the output detection module on this LDO, establish first temperature detecting module on the LED, described output detection module, first temperature detecting module and voltage, the testing result of current detection module reaches MCU respectively, is handled respectively and is regulated the DC/DC voltage stabilizing circuit by driving by MCU.
Further, on MCU, also be connected to second temperature detecting module and carrier interface.
Compared with prior art, the beneficial effect of this utility model: the utility model is under PFC, DC/DC, three grades of function situations of LDO, and power factor is up to more than 0.98, and overall efficiency reaches more than 88%; Realize the global function protection based on MCU, comprise overvoltage, overcurrent, cross gentle LED overtemperature protection, realize the high reliability of entire circuit, saved hardware cost greatly, improved the cost performance that LED drives.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Embodiment:
Referring to Fig. 1, this LED intelligent driver comprises electromagnetic interface filter, the AC/DC rectification circuit, the DC/DC voltage stabilizing circuit, LDO, LED and MCU, the AC electric current passes through electromagnetic interface filter successively, AC/DC rectification circuit and DC/DC voltage stabilizing circuit are delivered to LED, between AC/DC rectification circuit and DC/DC voltage stabilizing circuit, be provided with voltage, current detection module, described LDO is located between DC/DC voltage stabilizing circuit and the LED, establish the output detection module on this LDO, establish first temperature detecting module on the LED, described output detection module, first temperature detecting module and voltage, the testing result of current detection module reaches MCU respectively, is handled respectively and is regulated the DC/DC voltage stabilizing circuit by driving by MCU; On MCU, also be connected to second temperature detecting module and carrier interface.
The utility model can utilize power line communication at carrier interface, realizes condition monitoring.Its characteristics: superior performance, under high function factor condition, under PFC, DC/DC, three grades of function situations of LDO, power factor is up to more than 0.98; The efficient height, full load, overall efficiency reaches more than 88%; The reliability height is realized the global function protection based on MCU, comprises overvoltage, overcurrent, crosses gentle LED overtemperature protection, realizes the high reliability of entire circuit; High performance-price ratio utilizes software to realize three grades of conversion and full guard, has saved hardware cost greatly, has improved the cost performance that LED drives.
The above only is the detailed description of the utility model preferred embodiment and graphic, is not to be used for limiting the utility model, and the embodiment or the approximate construction of all similar variations of doing according to creation spirit of the present utility model all should be contained among the utility model.
Claims (2)
1. LED intelligent driver, comprise electromagnetic interface filter, the AC/DC rectification circuit, DC/DC voltage stabilizing circuit and LED, the AC electric current passes through electromagnetic interface filter successively, AC/DC rectification circuit and DC/DC voltage stabilizing circuit are delivered to LED, it is characterized in that: also comprise MCU and LDO, between AC/DC rectification circuit and DC/DC voltage stabilizing circuit, be provided with voltage, current detection module, described LDO is located between DC/DC voltage stabilizing circuit and the LED, establish the output detection module on this LDO, establish first temperature detecting module on the LED, described output detection module, first temperature detecting module and voltage, the testing result of current detection module reaches MCU respectively, is handled respectively and is regulated the DC/DC voltage stabilizing circuit by driving by MCU.
2. LED intelligent driver according to claim 1 is characterized in that: also be connected to second temperature detecting module and carrier interface on MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201042183U CN202059626U (en) | 2011-04-12 | 2011-04-12 | LED intelligent driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201042183U CN202059626U (en) | 2011-04-12 | 2011-04-12 | LED intelligent driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202059626U true CN202059626U (en) | 2011-11-30 |
Family
ID=45019588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201042183U Expired - Fee Related CN202059626U (en) | 2011-04-12 | 2011-04-12 | LED intelligent driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202059626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573225A (en) * | 2011-12-23 | 2012-07-11 | 东莞市亿凌电子有限公司 | LED lamp and power supply module thereof |
-
2011
- 2011-04-12 CN CN2011201042183U patent/CN202059626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573225A (en) * | 2011-12-23 | 2012-07-11 | 东莞市亿凌电子有限公司 | LED lamp and power supply module thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103841702A (en) | LED drive circuit and LED drive method | |
| CN102076152A (en) | Power-adjustable LED constant current source | |
| CN203039971U (en) | Novel lamp drive circuit | |
| CN202077247U (en) | Illumination drive power supply for Light-emitting diode (LED) streetlamp | |
| CN203086799U (en) | LED driving circuit under double-loop control | |
| CN103220868A (en) | High-power light emitting diode (LED) switching power supply | |
| CN201947510U (en) | Power-adjustable light emitting diode (LED) constant current source | |
| CN202435681U (en) | Wide voltage input linear constant current LED (Light-Emitting Diode) driving circuit | |
| CN202059626U (en) | LED intelligent driver | |
| CN201623887U (en) | LED power source | |
| CN204180333U (en) | The multi-channel LED constant-current dimming controller of DC centrally connected power supply | |
| CN202750273U (en) | LED (Light Emitting Diode) constant-current power supply circuit | |
| CN203387719U (en) | LED driver used for illumination | |
| CN202551464U (en) | Wide-voltage LED lamp control circuit | |
| CN201928483U (en) | Constant-current drive circuit for lighting LED | |
| CN203015236U (en) | A LED driving power supply | |
| CN203039947U (en) | High-efficiency LED lamp driving circuit | |
| CN202218454U (en) | Voltage and current adjustable soft switch LED power supply | |
| CN202310196U (en) | LED illuminating lamp for sewing machine | |
| CN202190435U (en) | Novel LED street lamp driving power supply | |
| CN202077229U (en) | Driving circuit for LED lamp | |
| CN202177065U (en) | Low-power alternating current (AC) light-emitting diode (LED) light source | |
| CN201657424U (en) | LED lighting circuit | |
| CN203596952U (en) | Mixed constant current LED lamp | |
| CN203057649U (en) | Low light decay control circuit for integrated large power COB illumination assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chongqing Shalom Science & Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Chongqing Shalom Science & Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |