CN206302597U - Power-adjustable Multifucntional LED power driver - Google Patents
Power-adjustable Multifucntional LED power driver Download PDFInfo
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- CN206302597U CN206302597U CN201621119216.0U CN201621119216U CN206302597U CN 206302597 U CN206302597 U CN 206302597U CN 201621119216 U CN201621119216 U CN 201621119216U CN 206302597 U CN206302597 U CN 206302597U
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
Power-adjustable Multifucntional LED power driver of the present utility model, it include rectification unit, PPFC pfc circuit, on-off circuit, DC/DC power converter cells, V/I sample circuits, protection switch, power conversion unit, microprocessor, eeprom memory, Power Supply Monitoring/reset circuit, temperature sensor, LED light source module, external adjustment resistance, serial line interface, infrared receiver and infrared emission unit and singlechip group into；The different control modes of external adjustment resistance, serial line interface and infrared receiver and infrared emission unit are employed to realize the change of output power of power supply size, matching between LED drive power and LED lamp is greatly facilitated, the efficiency of LED lamp manufacturer or LED lamp construction enterprises in actual items operation is greatly improved.
Description
Technical field
The technology of the present invention is related to power supply driver, is related specifically to a kind of power-adjustable Multifucntional LED power and drives
Dynamic device.
Background technology
The development that LED industry is advanced by leaps and bounds in the whole world recently, development LED illumination has turned into the focus of global industry,
Compared with other light sources, the LED of high brightness has a different characteristics and demand, therefore forPower supplyPropose new challenge.Electricity
Source is an important component for influenceing LED light source reliability and adaptability, is the key point of LED light device, LED electricity
The forward current close to constant current needed for source should have certain confession LED is exported, and has conversion efficiency higher, electric light conversion again
Efficiency is a key factor of semiconductor lighting, will otherwise lose the advantage of LED energy-conservations.
It is not just with single LED, but with multiple, up to a hundred or even more when we make illuminator with LED
LED accesses circuit into array, and in terms of voltage matches, LED can be directly connected to the exchange of 220V not as common incandescent lamp bulb
Civil power.LED is the low voltage drive of 2--3. volts, it is necessary to which the complicated translation circuit of design, the LED of different purposes will be equipped with
Different power supplys；In electric current supply side, the running current of LED is in 18mA-20mA, LED when supply current is less than 15mA
Luminous intensity not enough, and when being more than 20mA, there is light decay and cause LED aging, while heating increases, aging quickening, life-span
Shorten, can be quickly damaged when more than 50mA, in order to extend the service life of LED illumination lamp, commonly use ic power, electronics
Transformer, resolution element power supply etc., during large driven current density, will match somebody with somebody high-power pipe or silicon-controlled device, separately add protection circuit, perseverance
Stream, constant voltage circuit are powered, and such power circuit is complicated, and fault rate, element cost, production cost, cost of serving will all be raised.This
Just strongly limit competitiveness and the purchasing group in market.
Contemporary society, city LED illumination has become the business card and window of displaying Urban charm, but illumination is bringing brightness
It is bright, gorgeous and while facilitate, many unexpected problems are also encountered, the problem of one of them is that LED drive power is
By power supply, production firm is produced, and product is all to produce in batches to sell by watt level, and LED lamp manufacturer or LED lamp construction are looked forward to
Industry then commercially purchases matching required LED driving electricity according to LED bulb quantity in LED lamp on power
Source, if driving power needed for LED bulb is 100 watts in LED lamp, the LED drive power of 100 watts of purchase comes matched
Use.But the luminous illumination of many inconvenience, such as customer requirement LED lamp is brought in practice of construction installing engineering to be needed
The lamp group that 150 watts of LED bulb is constituted could meet lighting requirement, and two problems at this moment just occur, a problem is electricity
Without 150 watts of products of power, another problem is LED lamp manufacturer or LED to the LED drive power of source production firm production
The lamp group that tool construction enterprises are constituted without 150 watts of LED bulb, so allows for a LED illumination project and is limited in predicament,
Such example is frequently encountered in real work.
The content of the invention
The technical problems to be solved by the invention are to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of many work(of power-adjustable
Can New LED power supply driver.
In order to solve the above-mentioned technical problem, power-adjustable Multifucntional LED power driver of the invention, its feature exists
In：It includes that rectification unit 1, PPFC pfc circuit 2, on-off circuit 3, DC/DC power converter cells 4, V/I are adopted
Sample circuit 5, protection switch 6, power conversion unit 7, microprocessor 8, eeprom memory 9, Power Supply Monitoring/reset circuit 10,
Temperature sensor 11, LED light source module 12, external adjustment resistance 13, serial line interface 14, infrared receiver 15 and infrared emission
Unit 16 and single-chip microcomputer 17 are constituted.
Further, the DC voltage feeding PPFC PFC after the rectified unit 1 of alternating current input power supplying is converted
Circuit 2, the input signal of on-off circuit 3 comes the output of self-protection circuit 1, the output signal feeding DC/DC conversion of on-off circuit 3
Device unit 4, the output feeding V/I sample circuits 5 of DC/DC power converter cells 4, the output feeding protection switch of V/I sample circuits 5
6, the output of protection switch 6 to LED light source module 12.
Further, the DC voltage feeding power conversion unit 7 after the rectified unit 1 of alternating current input power supplying is converted, through electricity
2 groups of different voltages are exported after the treatment of source converter unit 7 respectively and is used as operating voltage to correlation unit circuit.
Further, V/I sample circuits 5, temperature sensor 11 are collected electric signal, temperature signal are respectively fed to microprocessor
Device 8.
Further, microprocessor 8 outputs a control signal to on-off circuit 3, controls its opening and closing to act；Microprocessor
8 output pwm signals control the power output size of DC/DC power converter cells 4 to DC/DC power converter cells 4.
Further, microprocessor 8 carries out two-way communication with EEPROM cell 9 and Power Supply Monitoring/reset circuit 10 respectively.
Further, microprocessor 8 communicates with single-chip microcomputer 17.
Further, the external adjustment resistance 13 of single-chip microcomputer 17, single-chip microcomputer 17 is by gathering the external adjustment resistance value of resistance 13
Size, exports to microprocessor 8 after carrying out A/D conversions.
Further, the input of infrared emission unit 16 infrared remote control signal, single-chip microcomputer 17 is connect by infrared receiver 15
Exported to microprocessor 8 after receipts, decoding.
Further, single-chip microcomputer 17 communicates with serial line interface 14, and it is defeated by serial line interface 14 that outside handheld device keys in instruction
Enter to single-chip microcomputer 17, exported after analytic operation to microprocessor 8.
Beneficial effects of the present invention：
1st, using temperature sensor and microprocessor, intelligent control LED light source module operating temperature extends LED light source
Module service life.
, employ external adjustment resistance, the different control modes of serial line interface and infrared receiver and infrared emission unit
The change of output power of power supply size is realized, matching between LED drive power and LED lamp is greatly facilitated, greatly
Improve the efficiency of LED lamp manufacturer or LED lamp construction enterprises in actual items operation.
, overcurrent protection be a kind of power source loads defencive function, with avoid occurring to include on lead-out terminal it is short-circuit including
Overload output current to power supply and load damage, when electric current be more than limit value when, microprocessor will to protection electricity
Road sends instruction, closes I/O channel.
Brief description of the drawings
Fig. 1：The general frame of the present invention；
Fig. 2：Exchange input protection and rectification and pfc circuit;
Fig. 3：Infrared emission and infrared receiver block diagram；
Fig. 4：Infrared receiver principle sketch；
Fig. 5：Infrared emission principle sketch；
Fig. 6：Intelligent temperature control block diagram；
Fig. 7：DC/DC power converter cells theory diagrams.
Accompanying drawing identifier declaration:
1:Rectification unit；2：PPFC pfc circuit；3：On-off circuit；4：DC/DC power converter cells；
5：V/I sample circuits；6：Protection switch；7：Power conversion unit；8：Microprocessor；9：Eeprom memory；
10：Power Supply Monitoring/reset circuit；11：Temperature sensor；12：LED light source module；13：External adjustment resistance；
14：Serial line interface；15：Infrared receiver；16：Infrared emission unit；17：Single-chip microcomputer.
Specific embodiment
Fig. 1 is the general frame of the present invention, and alternating current input power supplying is input to rectification unit 1, the exchange that rectification unit 1 will be input into
After over commutation and filtering, the DC voltage of output sends into PPFC pfc circuit 2 to power supply, and on-off circuit 3 is defeated
Enter output DC voltage of the signal from PPFC pfc circuit 2, the output signal feeding DC/ of on-off circuit 3
DC power converter cells 4, the output feeding V/I sample circuits 5 of DC/DC power converter cells 4, the output feeding of V/I sample circuits 5
Protection switch 6, the output of protection switch 6 to LED light source module 12.
DC voltage after the rectified unit 1 of alternating current input power supplying is converted sends into power conversion unit 7, through power conversion list
2 groups of different voltages, one group of+12V voltage and one group of+3.3V voltage are exported after the treatment of unit 7 respectively, they are used to correlation unit circuit
Make operating voltage.In power conversion unit, input power is transformed to 3.3VDC and is supplied to microprocessor by first piece of XB1085 chip
Device 8, AT24C512B eeprom chips 9, Power Supply Monitoring/reset unit 10, DS18B20 temperature sensors 11, infrared receiver list
Unit 15, single-chip microcomputer 17；Second piece with LM7812 power supply voltage stabilizing chips be PPFC pfc circuit 2, on-off circuit 3,
DC/DC power converter cells 4, V/I sample circuits 5 and protection switch 6 provide 12VDC operating voltages.
V/I sample circuits 5 carry out the sampling of voltage and current to the direct current signal of the output of DC/DC power converter cells 4, adopt
Signal feeding microprocessor 8 after sample, when sampled signal is higher or lower than setting value, microprocessor 8 instructs output action
It is closed to on-off circuit 3；Microprocessor 8 will export PWM and instruct and be at low-power consumption to DC/DC power converter cells 4 and treat
Machine state；Microprocessor 8 instructs output action makes it disconnect the power supply that cut-out flows into LED light source module 12 to protection switch 6
Path, action can be effectively ensured the fortune of power-adjustable Multifucntional LED power driver and LED light source module more than
Row safety.
The temperature signal that temperature sensor 11 is collected is respectively fed to microprocessor 8, when the temperature value of collection is more than setting
During value, microprocessor 8 sends instruction, reduces DC/DC power converter cells 4 and exports the operating current for arriving LED light source module, works as collection
Temperature value when being less than setting value, microprocessor 8 sends instruction, and increase DC/DC power converter cells 4 are exported and arrive LED light source module
Operating current.
Microprocessor 8 is connected with EEPROM cell 9, and the storage chip in EEPROM cell 9 uses AT24C512B chips,
Capacity 512KB；Interface I2C, is used to deposit sensing data, system configuration information, LED illumination lamp data etc., in order to avoid this
A little information are resetted by system accidentalia and are influenceed, special to select nonvolatile external memory to deposit these special datas.
Microprocessor 8 is connected with Power Supply Monitoring/reset unit 10, is employed in Power Supply Monitoring/reset unit 10
CAT1832 microprocessor monitors device chips, it can make the microprocessor of " hang-up " or " shutdown " suspend and restart, can be with
Microprocessor is restarted after power-fail, ensure microprocessor reliability service.
External adjustment resistance 13, serial line interface 14, infrared receiver 15 and 17 groups of infrared emission unit 16 and single-chip microcomputer
Into the various regulative modes to the power output of DC/DC power converter cells 4, meeting the different demands of user.
Microprocessor 8 is connected with single-chip microcomputer 17 using asynchronous communication mode, when user is changed using external adjustment resistance 13
Resistance value size；Parameter is rewritten or by infrared emission unit 16 by serial line interface 14 with the handheld device with serial line interface
Key assignments change during different key is pressed, the parameter that these change is after single-chip microcomputer 17 is processed by data with asynchronous communication mode
Communicated to connect with microprocessor 8, different PWM ripples are exported to DC/DC power converter cells 4 by microprocessor 8 so that DC/DC
The power output size of power converter cells 4 is changed.
Fig. 2 is exchange input protection and rectification and pfc circuit, and F is fuse in figure, different with the generation for ensureing drive circuit
It is unlikely to have influence on power supply or power network when often；R100 is piezo-resistance, the impulse voltage for absorbing power network, is mainly used in electricity
Road bears to carry out voltage clamping during overvoltage, absorbs unnecessary electric current with other Sensitive Apparatuses in protection circuit, and it is attempted by input
Between the phase line and zero line of 220V AC powers；R101 is negative temperature coefficient thermo-sensitive resistor, when energized, electric capacity C200 two
The voltage at end is 0, if now power network is larger voltage difference, it will produce very big dash current, it is possible to damage electric capacity or
Person's rectifier bridge.A current-limiting resistance must be increased on charging path, negative temperature coefficient resister R101 is exactly such a current limliting
Resistance, when energized, R101 temperature is low, and resistance is big, and after upper electricity terminates, R101 flows through electric current, produces certain temperature, electricity
Resistive is small.
Diode D100----D104 constitutes bridge rectifier, and output direct current enters by D200 after being filtered through electric capacity C200
, D201, D202 and electric capacity C201, C202 composition valley fill type PPFC pfc circuit, be placed in bridge rectifier
Output end substitutes traditional single aluminium electrolutic capacitor filtering, and the defeated people's current lead-through tortoises of AC can increase to 120 ° of left sides by about 60 °
The right side, is repaired current waveform, and power factor is up to 0. 92 ~ 0.95.
Fig. 3 is infrared emission and infrared receiving system block diagram, and infrared remote control is the infrared road letter mode of either simplex, whole communication
In, it is necessary to a transmitting terminal and a receiving terminal.Transmitting terminal uses coding chip by binary signal coded modulation to be sent
It is a series of burst signal, infrared signal is launched by infrared transmitting tube.Infrared receiver end generally uses cheap, property
Can reliable integration infrared receiving tube receive infrared signal, it is demodulated to signal, amplifies simultaneously, detection, shaping, obtain
Corresponding signal, then give decoding chip and decoded, decoded signal is sent to single-chip microcomputer.
Fig. 4 is infrared receiver principle sketch, and BC7210 is a inexpensive universal infrared remote-control decoding chip, can be completed
The decoding of current most widely used various infrared remote codings, single-chip microcomputer is sent to by serial data delivery outlet by decoding data
Serial ports.
Fig. 5 is infrared emission principle sketch, using HT6221 remote control transmitting chips.
Infrared emission and infrared receiver technology belong to the total technology of comparative maturity, do not do excessive elaboration herein.
Fig. 6 is intelligent temperature control block diagram of the present invention, and IC5 is DS18B20 digital temperature sensor DS18B20s numeral in figure
Temperature sensor is placed on LED illumination lamp group substrate, and temperature signal is sent to microprocessor by DS18B20 digital temperature sensors
ADC mouthfuls of IC2, is compared with the setting value in microprocessor program, when the temperature value of collection is more than setting value, microprocessor
Device sends instruction, reduces constant-current source output to the operating current of LED illumination lamp group, when the temperature value of collection is less than setting value,
Microprocessor sends instruction, the operating current of increase constant-current source output to LED illumination lamp group.Marked according to national LED street lamp place
Quasi- correlation provision regulation aluminum base circuit board temperature must not exceed 71 DEG C, and internal maximum temperature is not more than 50 DEG C of requirements, and chip is arrived
The thermal resistance of aluminium base, specifications typically recommend 10-15 DEG C, and that LED-baseplate will ensure at 120-15=105 DEG C.So, temperature is retained
Difference takes 50--105 DEG C of 77.5 DEG C of median, and general electronic component operating temperature is reliable at 85 DEG C, and 77 DEG C is to meet this
Principle.50 DEG C of beginning starting protections of present invention setting, significantly lower electric current before 71 DEG C, 80 DEG C are properly completed product temperature
Defencive function.
Fig. 7 is DC/DC power converter cells theory diagrams, and a fixed DC voltage conversion is by DC/DC converters can
The DC voltage of change, using One Buck-Boost converter body:The boosting hybrid circuit of step-down one, its output voltage can be less than input electricity
Pressure, it is also possible to more than input voltage, using PWM mode, have the advantages that high conversion efficiency, noise are low and ripple is small, into
It is the mainstream technology of current modulation system.With microprocessor as core, microprocessor controls DC/DC to become by output pwm signal
The break-make of triode in parallel operation, to reach the purpose of controlled output voltage.The present invention uses PWM control technologies, is with digital PID
Control algolithm, with AVR single chip as core controller, is equipped with peripheral circuit, constitutes a complete control system.
DC/DC converters have used 4 switching transistors to constitute, Q1, Q2, Q3, Q4 composition full-bridge switch inverter circuit,
Pwm pulse wheel flow control Q1, Q2, the turn-on and turn-off of Q3, Q4 switching tube, in a switch periods, first half period Q1, Q4
DC input voitage is transformed to high-frequency ac side by conducting, Q2, Q3 shut-off, second half period Q2, Q3 conducting, Q1, Q4 shut-off
Wave voltage, realize DC-AC convert, ac square-wave voltage through high frequency transformer buck, then via diode D100, D101,
The full-wave rectifying circuit rectification of D102, D103 composition and LC low-pass filter circuits, obtain VD.By to PWM arteries and veins
The width of punching is modulated, you can changes the size of circuit output voltage, can also change output frequency.
Power-adjustable Multifucntional LED power driver software of the present invention is adopted and shown a C language, and is not given herein in detail
Illustrate, the content that this specification is not described in detail belongs to well known to a person skilled in the art prior art, although the present invention oneself
It is shown and described by relevant case study on implementation, but, those skilled in the art is it is to be appreciated that in claims
In the range of, the various change in form and details can be made, therefore protection scope of the present invention ought be defined by claims.
Claims (2)
1. a kind of power-adjustable Multifucntional LED power driver, it is characterised in that：It includes rectification unit (1), passive work(
Rate factor correcting pfc circuit (2), on-off circuit (3), DC/DC power converter cells (4), V/I sample circuits (5), protection switch
(6), power conversion unit (7), microprocessor (8), eeprom memory (9), Power Supply Monitoring/reset circuit (10), temperature are passed
Sensor (11), LED light source module (12), external adjustment resistance (13), serial line interface (14), infrared receiver (15) and infrared
Transmitter unit (16) and single-chip microcomputer (17) are constituted；DC voltage feeding nothing after the rectified unit of alternating current input power supplying (1) conversion
Active power factor correction pfc circuit (2), on-off circuit (3) input signal comes from PPFC pfc circuit (2)
Output, the output signal of on-off circuit (3) sends into DC/DC power converter cells (4), the output feeding of DC/DC power converter cells (4)
Protection switch (6), protection switch (6) output to LED light source mould are sent into V/I sample circuits (5), the output of V/I sample circuits (5)
Group (12)；DC voltage after the rectified unit of alternating current input power supplying (1) conversion sends into power conversion unit (7), becomes through power supply
2 groups of different voltages are exported respectively to correlation unit circuit as operating voltage after changing unit (7) treatment；V/I sample circuits (5),
Electric signal that temperature sensor (11) is collected, temperature signal are respectively fed to microprocessor (8)；Microprocessor (8) output control
Signal controls its opening and closing to act to on-off circuit (3)；Microprocessor (8) output pwm signal is to DC/DC converter lists
First (4), control DC/DC power converter cells (4) power output size；Microprocessor (8) respectively with eeprom memory (9) and electricity
Source monitoring/reset circuit (10) carries out two-way communication；Microprocessor (8) communicates with single-chip microcomputer (17).
2. a kind of power-adjustable Multifucntional LED power driver according to claim 1, it is characterised in that：Single-chip microcomputer
(17) external adjustment resistance (13), single-chip microcomputer (17) carries out A/D and turns by gathering the external size for adjusting resistance (13) resistance value
Exported after changing and give microprocessor (8)；Infrared emission unit (16) is input into infrared remote control signal, and single-chip microcomputer (17) is connect by infrared
Exported after receipts unit (15) reception, decoding and give microprocessor (8)；Single-chip microcomputer (17) communicates with serial line interface (14), outside hand-held
Equipment keys in instruction and inputs to single-chip microcomputer (17) by serial line interface (14), is exported after analytic operation and gives microprocessor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621119216.0U CN206302597U (en) | 2016-10-13 | 2016-10-13 | Power-adjustable Multifucntional LED power driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621119216.0U CN206302597U (en) | 2016-10-13 | 2016-10-13 | Power-adjustable Multifucntional LED power driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302597U true CN206302597U (en) | 2017-07-04 |
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ID=59203227
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621119216.0U Expired - Fee Related CN206302597U (en) | 2016-10-13 | 2016-10-13 | Power-adjustable Multifucntional LED power driver |
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| CN (1) | CN206302597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366291A (en) * | 2019-07-05 | 2019-10-22 | 欧普照明股份有限公司 | With more specification light source load Auto-matchings for electric drive, lamps and lanterns and driving method |
| CN110461056A (en) * | 2019-07-05 | 2019-11-15 | 欧普照明股份有限公司 | The more specification light source loads of Auto-matching for electric drive, lamps and lanterns and driving method |
| CN111942271A (en) * | 2019-05-14 | 2020-11-17 | 嘉兴海拉灯具有限公司 | Safety circuit for car lamp and control method thereof |
-
2016
- 2016-10-13 CN CN201621119216.0U patent/CN206302597U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942271A (en) * | 2019-05-14 | 2020-11-17 | 嘉兴海拉灯具有限公司 | Safety circuit for car lamp and control method thereof |
| CN111942271B (en) * | 2019-05-14 | 2022-12-20 | 嘉兴海拉灯具有限公司 | Safety circuit for car lamp and control method thereof |
| CN110366291A (en) * | 2019-07-05 | 2019-10-22 | 欧普照明股份有限公司 | With more specification light source load Auto-matchings for electric drive, lamps and lanterns and driving method |
| CN110461056A (en) * | 2019-07-05 | 2019-11-15 | 欧普照明股份有限公司 | The more specification light source loads of Auto-matching for electric drive, lamps and lanterns and driving method |
| CN110461056B (en) * | 2019-07-05 | 2024-04-09 | 欧普照明股份有限公司 | Power supply driving, lamp and driving method capable of automatically matching loads of multiple light sources |
| CN110366291B (en) * | 2019-07-05 | 2024-04-09 | 欧普照明股份有限公司 | Power supply driving and lamp automatically matched with loads of light sources with multiple specifications and driving method |
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Granted publication date: 20170704 Termination date: 20181013 |