CN202206600U - Intelligent LED drive power supply - Google Patents
Intelligent LED drive power supply Download PDFInfo
- Publication number
- CN202206600U CN202206600U CN2011202762270U CN201120276227U CN202206600U CN 202206600 U CN202206600 U CN 202206600U CN 2011202762270 U CN2011202762270 U CN 2011202762270U CN 201120276227 U CN201120276227 U CN 201120276227U CN 202206600 U CN202206600 U CN 202206600U
- Authority
- CN
- China
- Prior art keywords
- unit
- main control
- control chip
- output
- led
- 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
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides an intelligent LED drive power supply. The LED drive power supply comprises an input filtering and rectifying unit connected with the input terminal of a power supply, a PFC (Power Factor Correction) unit connected with the output terminal of the input filtering and rectifying unit, a voltage change unit connected with the output terminal of the PCF unit, and an output unit connected with the output terminal of the voltage change unit, wherein the output terminal of the output unit is connected with an LED lamp. The intelligent LED drive power supply further comprises a DSP (Digital Signal Processor) main control chip unit and an isolated drive unit, wherein the DSP main control chip unit sends a PWM (Pulse Width Modulation) signal to control the isolated drive unit, so as to control voltage change of the voltage change unit. In the intelligent LED drive power supply, the DSP main control chip unit is adopted for intelligent management of the whole digital LED drive circuit, so that optimal configuration of both the long lived power supply and an LED load is realized, the light efficiency is improved and the energy is saved to the maximum extent, great intelligence is achieved, and problems caused by inconsistency in LED application are radically solved.
Description
Technical field
The utility model relates to the driving power field, relates in particular to a kind of intelligent LED driving power.
Background technology
High brightness light emitting diode LED is just becoming the green illumination light source of a new generation with plurality of advantages such as its energy-saving and environmental protection, efficient, long-lives.Manufacturing high efficiency, low cost, High Power Factor, long-life driving power are to guarantee LED luminescent quality and overall performance and promote the key that the LED industry develops rapidly.
At present; Normal lighting occasion in the civil power input; The normal employing comprises the circuit that adapter and driver two parts come driving LED to light, and the function of adapter is to realize that input power factor proofreaies and correct (PFC) and AC/DC conversion (AC-DC), for after burning voltage grade is provided.Driver is made up of the LED special driving chip, for the steady operation of high-brightness LED provides constant current.Two-stage type LED driving power can guarantee the luminescent quality of LED preferably, but has shortcomings such as device is many, volume is big, the life-span is short.
Existing, power management IC, its power source design can not have capacitor at the AC input.But this type of technological defective is to be output as pulse current, will cause the LED stroboscopic, to the generation harmful effect of LED lamp pearl life-span.Power Integrations company releases the method for designing of a efficiency up to 92% LED street lamp application power supply.HiperPLC power-supply controller of electric based on company designs; It has been integrated into single being integrated in the circuit simultaneously with power factor correction (PFC) resonant (LLC) controlled function; Realization is simple and have cost-benefit circuit design, but this technology lacks the intelligent controlled function to led chip.
Because single led light source is low-voltage, constant current driving element; Its luminous intensity is by the size of current decision of flowing through LED, and electric current is crossed the decay that can cause LED light by force, and electric current is crossed the weak luminous intensity that can influence LED; Therefore; The driving of LED need provide constant-current supply, and the fail safe to guarantee that great power LED uses reaches desirable luminous intensity simultaneously.In addition, at the LED lighting field, embody energy-conservation and feature of long life, it is most important to choose the LED driving power, does not have the coupling of good driving power, and the advantage of LED illumination can't be brought into play.Therefore realize the LED driving power to the self adaptation of led chip and the long-life of intelligent management and driving power, solve LED use in because the defective that the inconsistency of himself causes is the technical problem of present urgent need solution.
Summary of the invention
The purpose of the utility model is to provide a kind of intelligent LED driving power; It can realize self adaptation and the intellectualized management of LED driving power to led chip; Solve LED use in because the defective that the inconsistency of himself causes, the lifting of indexs such as promotion LED light efficiency, life-span, reliability.
The purpose of the utility model realizes through following technical scheme.
A kind of intelligent LED driving power comprises: the input filter rectification unit that links to each other with power input; The PFC unit that links to each other with input filter rectification unit output; The voltage transformation module that links to each other with PCF unit output; The output unit that links to each other with the voltage transformation module output; The output of said output unit links to each other with the LED light fixture; Also comprise DSP main control chip unit and isolation drive unit; Said DSP main control chip unit sends the PWM pulse-width signal and controls said isolation drive unit, controls the voltage transitions of voltage transformation module then.
Preferably, the electric capacity that adopts in the said input filter rectification unit is nonpolarity solid electric capacity; The electric capacity that adopts in the said output unit is the macromolecular solid body capacitance.
Preferably, the transformer in the said voltage transformation module is integrated transformer.
Preferably, also comprise the current feedback unit; Said output unit feeds back to DSP main control chip unit through the current feedback unit with the current signal of circuit.
Preferably, also comprise temperature detecting unit and voltage-current characteristic detecting unit; Said temperature detecting unit comprises the temperature-detecting device on the fin that is arranged on the LED light fixture, and this temperature-detecting device feeds back to DSP main control chip unit with the temperature data that detects; Said voltage-current characteristic detecting unit feeds back to DSP main control chip unit with the voltage-current characteristic data of detected LED light fixture.
Preferably, also comprise the driven in synchronism unit; Said DSP main control chip unit sends the PWM pulse-width signal and controls said driven in synchronism unit, controls output unit then.
Preferably, also comprise and the two-way PC communication interface unit that is connected in DSP main control chip unit, be used for the intelligent LED driving power is carried out remote monitoring.
The utility model compared with prior art; Its advantage is that the utility model adopts DSP main control chip unit that whole digital LED drive circuit is carried out intelligent management, adopts the prediction algorithm program control technology simultaneously; Reach the control of adaptive fuzzy briliancy; Realize the best configuration of long-life power supply and LED load, farthest improve light efficiency, energy savings; Adopt the fuzzy prediction algorithm, realize detecting real-time, the LED lamp pearl life-span is carried out early warning, realize the telemanagement of net connection from now on led chip.Thereby to the drive current of the LED of different LED wicks, an order and different model, driving voltage can both reach best matching effect; Can determine electric current, voltage and automatic heat management automatically according to loading condition; User-friendly for operation, do not need to customize specification especially, easy to use; Controllability is strong, and the entire work process curve connects through network, and monitoring in real time comes into plain view the operator, and is very intelligent, has thoroughly solved the problem of bringing owing to the inconsistency of himself during LED uses.
Description of drawings
Fig. 1 is the utility model driving power schematic diagram.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also shown in Figure 1; The utility model LED driving power comprises: input filter rectification unit 1, PCF unit 2, voltage transformation module 3, output unit 4, DSP main control chip unit 6, isolation drive unit 7, current feedback unit 8, temperature detecting unit 9, voltage-current characteristic detecting unit 10, driven in synchronism unit 11, PC communication interface unit 12 and accessory power supply unit 13.
Input filter rectification unit 1 links to each other with power input.PFC unit 2 links to each other with input filter rectification unit 1 output.Voltage transformation module 3 links to each other with PCF unit 2 outputs.Output unit 4 links to each other with voltage transformation module 3 outputs.The output of output unit 4 links to each other with LED light fixture 5.DSP main control chip unit 6 sends the PWM pulse-width signal and controls said isolation drive unit 7, controls the voltage transitions of voltage transformation module 3 then.Input filter rectification unit 1 provides working power for DSP main control chip unit 6.The self feeding that voltage transformation module 3 produces through accessory power supply unit 13 for DSP main control chip unit 6 provide work required keep power supply.Output unit 4 feeds back to DSP main control chip unit 6 through current feedback unit 8 with the current signal of circuit.Temperature detecting unit 9 comprises the temperature-detecting device on the fin that is arranged on LED light fixture 5; This temperature-detecting device feeds back to DSP main control chip unit 6 with the temperature data that detects; Thereby make DSP main control chip unit 6 can grasp the temperature rise of LED light fixture 5 in real time, reasonably to regulate and control.Whether voltage-current characteristic detecting unit 10 feeds back to DSP main control chip unit 6 with the voltage-current characteristic data of detected LED light fixture 5, thereby make 6 each LED light fixture 5 brightness of ability real-time judge of DSP main control chip unit consistent.DSP main control chip unit 6 sends the PWM pulse-width signal and controls said driven in synchronism unit 11, controls output unit 4 then.PC communication interface unit 12 and 6 two-way connections of DSP main control chip unit are used for the intelligent LED driving power is carried out remote monitoring.
In order to improve the useful life of LED driving power, the electric capacity that adopts in the input filter rectification unit 1 is nonpolarity solid electric capacity; The electric capacity that adopts in the output unit 4 is the macromolecular solid body capacitance.
In order to make the miniaturization of LED driving power, the transformer in the voltage transformation module 3 is integrated transformer.
DSP main control chip unit 6 adopts fuzzy prediction algorithm routine control technology, and the chip model of employing is 56F8323.Through the prediction algorithm control technology of DSP, realize the adjusting of fuzzy self-adaption briliancy, make the intelligent LED driving power reach best cooperation with different led chips automatically; Automatically regulate current/voltage, make the LED light efficiency maximum, and realize light modulation, the long-life, thus solve a series of defectives that cause owing to inconsistency single led in the led array.Through fuzzy prediction algorithm controls technology, therefore need not know controlled device or process mathematical model.For uncertain system, as controlling effectively with non linear system over time.Appear non-linearly like the glow current of LED and the variation between the temperature, and common constant-current circuit can't carry out detecting real-time, just drives and can't optimize, and the life-span can be affected.And after the employing fuzzy control; The electric current of wick, voltage, temperature, life-span are carried out detecting real-time, reach the optimization of driving and load, can also carry out early warning to the life-span and the fault of led chip; As long as just fault can be found at once, reach the purpose of telemanagement through computer.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (7)
1. an intelligent LED driving power comprises: the input filter rectification unit that links to each other with power input; The PFC unit that links to each other with input filter rectification unit output; The voltage transformation module that links to each other with PCF unit output; The output unit that links to each other with the voltage transformation module output; The output of said output unit links to each other with the LED light fixture; It is characterized in that: also comprise DSP main control chip unit and isolation drive unit; Said DSP main control chip unit is connected with voltage transformation module through said isolation drive unit.
2. according to the described intelligent LED driving power of claim l, it is characterized in that: the electric capacity that adopts in the said input filter rectification unit is nonpolarity solid electric capacity; The electric capacity that adopts in the said output unit is the macromolecular solid body capacitance.
3. intelligent LED driving power according to claim 2 is characterized in that: the transformer in the said voltage transformation module is integrated transformer.
4. intelligent LED driving power according to claim 1 is characterized in that: also comprise the current feedback unit; Said output unit feeds back to DSP main control chip unit through the current feedback unit with the current signal of circuit.
5. intelligent LED driving power according to claim 4 is characterized in that: also comprise temperature detecting unit and voltage-current characteristic detecting unit; Said temperature detecting unit comprises the temperature-detecting device on the fin that is arranged on the LED light fixture, and this temperature-detecting device is connected with DSP main control chip unit; Said voltage-current characteristic detecting unit is used for being connected with DSP main control chip unit.
6. intelligent LED driving power according to claim 5 is characterized in that: also comprise the driven in synchronism unit; Said DSP main control chip unit is connected with output unit through said driven in synchronism unit.
7. intelligent LED driving power according to claim 6 is characterized in that: also comprise and the two-way PC communication interface unit that is connected in DSP main control chip unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202762270U CN202206600U (en) | 2011-08-01 | 2011-08-01 | Intelligent LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202762270U CN202206600U (en) | 2011-08-01 | 2011-08-01 | Intelligent LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206600U true CN202206600U (en) | 2012-04-25 |
Family
ID=45970690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202762270U Expired - Fee Related CN202206600U (en) | 2011-08-01 | 2011-08-01 | Intelligent LED drive power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206600U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249212A (en) * | 2012-05-10 | 2013-08-14 | 湖北云川光电科技有限公司 | Intelligent constant current system for multi-modular LED street lamp |
| CN104837269A (en) * | 2015-05-15 | 2015-08-12 | 重庆星联云科科技发展有限公司 | LED drive power supply with auxiliary power supply |
| CN105764184A (en) * | 2016-03-17 | 2016-07-13 | 宁波市江东精诚自动化设备有限公司 | Wireless intelligent dimming switch |
-
2011
- 2011-08-01 CN CN2011202762270U patent/CN202206600U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249212A (en) * | 2012-05-10 | 2013-08-14 | 湖北云川光电科技有限公司 | Intelligent constant current system for multi-modular LED street lamp |
| CN104837269A (en) * | 2015-05-15 | 2015-08-12 | 重庆星联云科科技发展有限公司 | LED drive power supply with auxiliary power supply |
| CN105764184A (en) * | 2016-03-17 | 2016-07-13 | 宁波市江东精诚自动化设备有限公司 | Wireless intelligent dimming switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202374525U (en) | Multiway LED constant-current dimming circuit | |
| CN101835317B (en) | Fly-back street lamp illumination LED constant-current driving power supply with intelligent dimming function | |
| CN103442501B (en) | Forced constant flow source dimming LED (Light Emitting Diode) lamp | |
| CN103547014A (en) | Load driving device associated with light-emitting diode lamp tube and method of load driving device | |
| CN202475895U (en) | Induction type LED (light emitting diode) illumination device | |
| CN201657400U (en) | LED dimming controller | |
| CN201690655U (en) | Flyback road lamp illuminating LED constant-current driving power supply with intelligent dimming function | |
| CN201750591U (en) | Self-adaptive light emitting diode (LED) drive power supply | |
| CN102769962A (en) | Wireless communication network based intelligent high-power LED driving power source system | |
| CN204465954U (en) | A kind of LED lamp drive circuit with dimming function | |
| CN102271443A (en) | Self-adapting LED (light-emitting diode) driving power supply | |
| CN105307350A (en) | Long-service lifetime intelligent constant-current light-modulating driving power supply of LED street lamps | |
| CN202206600U (en) | Intelligent LED drive power supply | |
| CN201438772U (en) | LED driving circuit | |
| CN202652606U (en) | Networked intelligent LED navaid lamp | |
| CN101754538B (en) | Adjustable photocontrol circuit of LED (light-emitting diode) lamp | |
| CN201171240Y (en) | LED constant-current driver with temperature protection | |
| CN201639821U (en) | Dimming control circuit of LED lamp | |
| CN203761661U (en) | LED light-emitting apparatus, LED drive circuit, and switching power supply drive chip of LED drive circuit | |
| CN202663591U (en) | LED (light-emitting diode) resistance-capacitance type driver | |
| CN102118912B (en) | A kind of LED streetlamp power source circuit | |
| CN101583222B (en) | Led street lamp control method | |
| CN201388318Y (en) | Driving circuit of LED light source | |
| CN204157104U (en) | The uninterrupted emergency lighting system of subway LED | |
| CN210351737U (en) | LED street lamp drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20130801 |