CN103458575B - Great power LED digital linear light-dimming method - Google Patents
Great power LED digital linear light-dimming method Download PDFInfo
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- CN103458575B CN103458575B CN201310368366.XA CN201310368366A CN103458575B CN 103458575 B CN103458575 B CN 103458575B CN 201310368366 A CN201310368366 A CN 201310368366A CN 103458575 B CN103458575 B CN 103458575B
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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
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Abstract
The invention discloses a kind of great power LED digital linear light-dimming method; Belong to light-dimming method technical field; Its technical essential comprises the steps: that (1) single-chip microcomputer receives potentiometer signal, current signal, voltage signal and LED temperature signal and carries out analog-to-digital conversion; (2) calculate luminance compensation coefficient A according to electric current, voltage and temperature signal; (3) calculate lumen value L, then calculate the output brightness value Lch after temperature-compensating in conjunction with luminance compensation coefficient A; (4) obtaining according to Lch value should be to the electric current I o of confession; (5) judge whether the current signal that sampling obtains equals Io, if it is result is exported to pwm control circuit, after adjusting, export to pwm control circuit; The present invention aims to provide a kind of easy to operate, light modulation great power LED digital linear light-dimming method accurately; For the light modulation of large function LED.
Description
Technical field
The present invention relates to a kind of light-dimming method, more particularly, relate in particular to a kind of great power LED digital linear light-dimming method.
Background technology
The output brightness of LED lamp is except outside the Pass having with the material technology of LED lamp itself, also relevant with the junction temperature of LED lamp with operating current. Same producer, isonomic LED lamp, the factor that affects output brightness is mainly the junction temperature of operating current and the LED lamp of LED lamp. LED operating current is larger, and output brightness is higher, but the variation of brightness and electric current is nonlinear. Meanwhile, the higher LED output brightness of junction temperature is lower. In the time that radiating condition is constant, regulate the operating current of LED can cause the junction temperature of LED to change, this is also to affect LED brightness to change one of not linear factor.
The adder and substracter circuit that current LED adjusting control circuit is mainly made up of operational amplifier, this control circuit can only be accomplished the variation of the current following potentiometer resistance value of exporting and change. If potentiometer is linear potentiometer, output current is also linear current, and directly ignores the non-linear of other feedback circuits. This regulative mode is fairly simple, technology maturation, but the non-linear relation to brightness and electric current, and LED junction temperature can not be eliminated the impact of brightness output, thereby nonlinear variation appears in the brightness of LED lamp while causing regulator potentiometer, this makes troubles to some specific use occasion.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, a kind of easy to operate, light modulation great power LED digital linear light-dimming method is accurately provided.
Technical scheme of the present invention is achieved in that a kind of great power LED digital linear light-dimming method, wherein the method comprises the steps: that (1) arranges pwm control circuit, current sampling circuit and voltage sampling circuit on the circuit between power supply and LED, near set temperature detection probe LED solder joint, pwm control circuit connects single-chip microcomputer simultaneously, and single-chip microcomputer connects linear potentiometer; (2) single-chip microcomputer reception potentiometer signal, current signal, voltage signal and LED temperature signal carry out analog-to-digital conversion; (3) calculate luminance compensation coefficient A according to current signal, voltage signal and LED temperature signal; (4) according to potentiometer calculated signals output lumen value L, then calculate the output brightness value Lch setting after temperature-compensating in conjunction with luminance compensation coefficient A; (5) looking in program according to Lch value that digitized electric current and LED light table obtains should be to the electric current I o of confession; (6) judge whether the current signal that sampling obtains equals Io, if so, result is exported to pwm control circuit, if not, after adjusting, export to pwm control circuit.
In above-mentioned great power LED digital linear light-dimming method, described step (2) is specially: single-chip microcomputer is the microprocessor with above 12 the high-speed ADC analog-digital converters in 4 roads and 12 DAC digital-to-analogue converters; ADC analog-digital converter receives potentiometer signal, current signal, voltage signal and LED temperature signal to carry out analog-to-digital conversion and is converted into corresponding R, I, V and Tc, and the adjusting resistance that wherein R is linear potentiometer, equals potentiometer signal value and be multiplied by the coefficient of setting; I is the current value of actual output, and the current signal that equals ADC collection is multiplied by the coefficient of setting; V is the magnitude of voltage of circuit output, and the voltage signal that equals ADC collection is multiplied by the coefficient of setting; Tc is near temperature LED pad, obtains by temperature measuring probe.
In above-mentioned great power LED digital linear light-dimming method, described step (3) is specially: (3a) according to current signal and voltage signal rated output P, P=V*I; (3b) calculate junction temperature T, △ T=Rthe*P, T=Tc+ △ T; (3c) look into digitized LED junction temperature and LED light table in program and obtain the brightness output percentage Ach under junction temperature T, then calculate luminance compensation coefficient A, A=Ach+ △ A; Wherein: △ T is the temperature difference of LED junction temperature and measurement point; Rthe is the thermal resistance of LED, checks according to LED databook; Ach is brightness under different junction temperatures output percentage, according to the junction temperature T acquisition of tabling look-up; △ A is luminance compensation correction factor, selects △ A according to the joint temperature scope of actual use, makes A=1 under benchmark junction temperature.
In above-mentioned great power LED digital linear light-dimming method, described step (4) is specially: the computing the resistor value output lumen value L, the L=(Lmax/Rmax that (4a) regulate according to linear potentiometer) * R; (4b) the output brightness value Lch setting after accounting temperature compensation, Lch=L/A; Wherein, Lmax is the LED output maximum brightness value of setting, and sets according to the databook of LED with needs and LED radiating condition; Rmax is the maximum of resistance, the potentiometer maximum value of choosing; A is luminance compensation coefficient, and expansion joint temperature changes the impact on brightness output; Constant for realizing actual output brightness value L, be subject to saving the impact that temperature changes, Lch setting value is dynamic variable quantity.
The present invention adopts after said method, by on the basis of original current feedback loop, increase the temperature measuring probe of voltage sampling circuit and detection LED lamp junction temperature, and carry out analyzing and processing by thering is the signal that the single-chip microcomputer of efficient disposal ability feeds back each circuit, thereby realize LED lamp brightness output nonlinear when eliminating variations injunction temperature and regulating electric current, reach the object of accurate light modulation.
Brief description of the drawings
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but do not form any limitation of the invention.
Fig. 1 is electrical block diagram of the present invention;
Fig. 2 is workflow schematic diagram of the present invention;
Fig. 3 is the circuit theory schematic diagram of a kind of specific embodiment of the present invention;
Fig. 4 is that LED lamp brightness output of the present invention changes schematic diagram with potentiometer resistance.
Detailed description of the invention
Consult shown in Fig. 1, it is the electrical block diagram of realizing great power LED digital linear light-dimming method of the present invention, comprise that sequentially circuit is connected to filtering and holding circuit 3, pwm control circuit 4 and the output filter circuit 5 between DC power supply 1 and LED light source 2, simultaneously, pwm control circuit 4 circuit are connected with single-chip microcomputer 6, and described single-chip microcomputer 6 circuit are connected with linear potentiometer 7; Circuit between described output filter circuit 5 and LED light source 2 is provided with current sample amplifying circuit 8, and described current sample amplifying circuit 8 is connected with single-chip microcomputer 6. Single-chip microcomputer 6 described in the present embodiment is the microprocessor with above 12 the high-speed ADC analog-digital converters in 4 roads and 12 DAC digital-to-analogue converters; Described linear potentiometer 7 is connected with microprocessor by ADC analog-digital converter. Meanwhile, be provided with temperature sensor 9 at LED light source 2 pad sides, described temperature sensor 9 is connected with microprocessor by ADC analog-digital converter. The weld point temperature obtaining by microprocessor processes temperature sensor 9, thereby the problem of LED brightness output nonlinear while realizing elimination LED variations injunction temperature. On the circuit between output filter circuit 5 and LED light source 2, be connected with voltage sampling circuit 10, described voltage sampling circuit 10 is connected with microprocessor by ADC analog-digital converter. The magnitude of voltage obtaining by microprocessor processes voltage sampling circuit 10, thus realize the problem of eliminating LED brightness output nonlinear while regulating electric current.
Consult shown in Fig. 2, a kind of great power LED digital linear light-dimming method of the present invention, the method comprises the steps:
(1) pwm control circuit, current sample amplifying circuit and voltage sampling circuit are set on the circuit between DC power supply and LED light source, near set temperature detection probe LED solder joint, pwm control circuit connects single-chip microcomputer simultaneously, and single-chip microcomputer connects linear potentiometer;
(2) single-chip microcomputer is the microprocessor with above 12 the high-speed ADC analog-digital converters in 4 roads and 12 DAC digital-to-analogue converters, the preferred STM32F051K4 processor of micro-processing in the present embodiment; ADC analog-digital converter receives potentiometer signal, current signal, voltage signal and LED temperature signal to carry out analog-to-digital conversion and is converted into corresponding R, I, V and Tc, and the adjusting resistance that wherein R is linear potentiometer, equals potentiometer signal value and be multiplied by the coefficient of setting; I is the current value of actual output, and the current signal that equals ADC collection is multiplied by the coefficient of setting; V is the magnitude of voltage of circuit output, and the voltage signal that equals ADC collection is multiplied by the coefficient of setting; Tc is near temperature LED pad, obtains by temperature measuring probe;
(3) calculate luminance compensation coefficient A according to current signal, voltage signal and LED temperature signal; Be specially: (3a) according to current signal and voltage signal rated output P, P=V*I; (3b) calculate junction temperature T, T=Tc+ △ T, △ T=Rthe*P; (3c) look into digitized LED junction temperature and LED light table in program and obtain the brightness output percentage Ach under junction temperature T, then calculate luminance compensation coefficient A, A=Ach+ △ A; Wherein: △ T is the temperature difference of LED junction temperature and measurement point; Rthe is the thermal resistance of LED, checks according to LED databook; Ach is brightness under different junction temperatures output percentage, according to the junction temperature T acquisition of tabling look-up; △ A is luminance compensation correction factor, selects △ A according to the joint temperature scope of actual use, makes A=1 under benchmark junction temperature;
(4) according to potentiometer calculated signals output lumen value L, then calculate the output brightness value Lch setting after temperature-compensating in conjunction with luminance compensation coefficient A; Be specially: the computing the resistor value output lumen value L, the L=(Lmax/Rmax that (4a) regulate according to linear potentiometer) * R; (4b) the output brightness value Lch setting after accounting temperature compensation, Lch=L/A; Wherein, Lmax is the LED output maximum brightness value of setting, and sets according to the databook of LED with needs and LED radiating condition; Rmax is the maximum of resistance, the potentiometer maximum value of choosing; A is luminance compensation coefficient, and expansion joint temperature changes the impact on brightness output; Constant for realizing actual output brightness value L, be subject to saving the impact that temperature changes, Lch setting value is dynamic variable quantity;
(5) looking into according to Lch value that electric current in LED handbook and LED light table obtain should be to the electric current I o of confession;
(6) judge whether the current signal that sampling obtains equals Io, if so, do not regulate PWM to control output, if not, regulate DAC output to change pwm control circuit pulsewidth.
Consult shown in Fig. 3, the circuit working principle schematic of great power LED digital linear light-dimming method of the present invention, has selected STM32F051K4 processor as single-chip microcomputer 6 in the specific embodiment of the invention, and power supply chip uses integrated power supply chip MP1593. VDD, model and the power supply of VDDA power circuit and operational amplifier are chosen as required flexibly.
Specific works principle is as follows:
The direct current of DC5V～23V is inputted PWM controller MP1593 after the filter circuit of reverse-connection protection circuit, current foldback circuit and electromagnetic compatibility. MP1593 is integrated step-down switching power supply chip, can control the dutycycle of MP1593 by the input of controlling FB pin, thereby reaches the object of adjusting output current size. What MP1593 exported is the electric current of high frequency, need to after rectifying and wave-filtering, just obtain supplying with the DC current of LED.
Sample circuit comprises 4 part compositions, is respectively.
(1) Voltage Feedback sampling: gather voltage signal from the anode of LED power supply output port, use electric resistance partial pressure after voltage follower U1B, then access the ADC input pin (the 7th pin) of STM32F051K4.
(2) current feedback: the copper-manganese resistance that seals in 0.1 Europe in output loop changes current signal into voltage signal, amplifies through operational amplifier U1A the ADC input pin (the 6th pin) of inputting STM32F051K4 after 16 times.
(3) temperature feedback: the signal of LM35 temperature measuring probe, from binding post J3 place in circuit, is received the ADC input pin (the 9th pin) of STM32F051K4 after RC filtering.
(4) potentiometer signals collecting: potentiometer signal, from binding post J2 place in circuit, is received the ADC input pin (the 9th pin) of STM32F051K4 after RC filtering.
32-bit microprocessor STM32F051K4 effect is that the 4 road signals that ADC is collected carry out computing (process of processing is shown in Fig. 3), and the result of computing is used for controlling pwm chip MP1583 from the DAC output of the 14th pin of STM32F051K4. J1 is the FLASH programming input interface of STM32F051K4.
Consulting shown in Fig. 4, is to utilize light-dimming method of the present invention, and the linear change schematic diagram of linear potentiometer resistance and LED lamp output brightness (lumen), can find out, can realize the linearity output of LED lamp brightness by the resistance of linear regulation potentiometer.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; and other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (1)
1. a great power LED digital linear light-dimming method, it is characterized in that, the method comprises the steps: that (1) arranges pwm control circuit, current sampling circuit and voltage sampling circuit on the circuit between power supply and LED, near set temperature detection probe LED solder joint, pwm control circuit connects single-chip microcomputer simultaneously, and single-chip microcomputer connects linear potentiometer; (2) single-chip microcomputer reception potentiometer signal, current signal, voltage signal and LED temperature signal carry out analog-to-digital conversion; Described single-chip microcomputer is the microprocessor with above 12 the high-speed ADC analog-digital converters in 4 roads and 12 DAC digital-to-analogue converters; ADC analog-digital converter receives potentiometer signal, current signal, voltage signal and LED temperature signal to carry out analog-to-digital conversion and is converted into corresponding R, I, V and Tc, and the adjusting resistance that wherein R is linear potentiometer, equals potentiometer signal value and be multiplied by the coefficient of setting; I is the current value of actual output, and the current signal that equals ADC collection is multiplied by the coefficient of setting; V is the magnitude of voltage of circuit output, and the voltage signal that equals ADC collection is multiplied by the coefficient of setting; Tc is near temperature LED pad, obtains by temperature measuring probe; (3) calculate luminance compensation coefficient A according to current signal, voltage signal and LED temperature signal; Be specially: (3a) according to current signal and voltage signal rated output P, P=V*I; (3b) calculate junction temperature T, T=Tc+ △ T, △ T=Rthe*P; (3c) look into digitized LED junction temperature and LED light table in program and obtain the brightness output percentage Ach under junction temperature T, then calculate luminance compensation coefficient A, A=Ach+ △ A; Wherein: △ T is the temperature difference of LED junction temperature and measurement point; Rthe is the thermal resistance of LED, checks according to LED databook; Ach is brightness under different junction temperatures output percentage, according to the junction temperature T acquisition of tabling look-up; △ A is luminance compensation correction factor, selects △ A according to the joint temperature scope of actual use, makes A=1 under benchmark junction temperature; (4) according to potentiometer calculated signals output lumen value L, then calculate the output brightness value Lch setting after temperature-compensating in conjunction with luminance compensation coefficient A; Be specially: the computing the resistor value output lumen value L (4a) regulating according to linear potentiometer, L=(Lmax/Rmax) * R; (4b) the output brightness value Lch setting after accounting temperature compensation, Lch=L/A; Wherein, Lmax is the LED output maximum brightness value of setting, and sets according to the databook of LED with needs and LED radiating condition; Rmax is the maximum of resistance, the linear potentiometer maximum value of choosing; A is luminance compensation coefficient, and expansion joint temperature changes the impact on brightness output; Constant for realizing actual output brightness value L, be subject to saving the impact that temperature changes, Lch setting value is dynamic variable quantity; (5) looking into according to Lch value that electric current in LED handbook and LED light table obtain should be to the electric current I o of confession; (6) judge whether the current signal that sampling obtains equals Io, if so, do not regulate PWM to control output, if not, regulate DAC output to change pwm control circuit pulsewidth.
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| CN103596325B (en) * | 2013-08-22 | 2015-09-09 | 广西奥顺仪器有限公司 | Great power LED digital linear light adjusting system |
| CN104536438B (en) * | 2014-12-31 | 2017-05-10 | 杭州师范大学 | Stroboscopic theory based needle selector detecting system and method |
| CN104955236B (en) * | 2015-06-30 | 2017-04-12 | 艾佛森（深圳）科技有限公司 | Method and device for controlling LED lamps |
| CN105430814B (en) * | 2015-12-30 | 2018-04-20 | 北京经纬恒润科技有限公司 | LED light temperature compensation control method, device and system |
| US9763305B1 (en) * | 2016-04-15 | 2017-09-12 | Infineon Technologies Austria Ag | Temperature protection circuit for light-emitting diodes |
| CN108337761B (en) * | 2017-01-19 | 2020-09-15 | 苏州速迈医疗设备有限公司 | Dimming method and dimming system of high-power LED |
| TWI674815B (en) * | 2018-10-01 | 2019-10-11 | 龍華科技大學 | An adaptive LED driver |
| CN115297590B (en) * | 2022-10-10 | 2023-02-14 | 杭州罗莱迪思科技股份有限公司 | Color non-shift control method for dimming lamp and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511145A (en) * | 2009-03-19 | 2009-08-19 | 克拉玛依地威诺节能有限责任公司 | Intelligent operation method of high-power LED lighting lamp |
| CN201898645U (en) * | 2010-11-19 | 2011-07-13 | 陕西群力电工有限责任公司 | Adaptive full-automatic optical attenuation compensation device for LED lamps |
| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102595732A (en) * | 2012-02-27 | 2012-07-18 | 西南科技大学 | LED (light-emitting diode) temperature control method and system based on PWM (pulse width modulation) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8633655B2 (en) * | 2010-09-15 | 2014-01-21 | Azurelighting Technologies, Inc. | LED (Light-Emitting Diode) output power adjusting device and method thereof |
| CN201937888U (en) * | 2010-10-26 | 2011-08-17 | 张志国 | Device for changing color temperature of luminous diode |
-
2013
- 2013-08-22 CN CN201310368366.XA patent/CN103458575B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511145A (en) * | 2009-03-19 | 2009-08-19 | 克拉玛依地威诺节能有限责任公司 | Intelligent operation method of high-power LED lighting lamp |
| CN201898645U (en) * | 2010-11-19 | 2011-07-13 | 陕西群力电工有限责任公司 | Adaptive full-automatic optical attenuation compensation device for LED lamps |
| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102595732A (en) * | 2012-02-27 | 2012-07-18 | 西南科技大学 | LED (light-emitting diode) temperature control method and system based on PWM (pulse width modulation) |
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