CN104981052A - Touch-sensitive constant-current dimming controller used for LED light source - Google Patents

Touch-sensitive constant-current dimming controller used for LED light source Download PDF

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Publication number
CN104981052A
CN104981052A CN201410338563.1A CN201410338563A CN104981052A CN 104981052 A CN104981052 A CN 104981052A CN 201410338563 A CN201410338563 A CN 201410338563A CN 104981052 A CN104981052 A CN 104981052A
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China
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circuit
terminals
light source
led light
power
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CN201410338563.1A
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CN104981052B (en
Inventor
王红艳
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Xiamen Xinghenglong Lighting Technology Co Ltd
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Xiamen Xinghenglong Lighting Technology Co Ltd
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Abstract

The present invention discloses a touch-sensitive constant-current dimming controller used for a LED light source. The touch-sensitive constant-current dimming controller comprises a dimming controller connected between a LED constant-current driving power supply and a LED light source, and an external controller connected with the dimming controller for sending an external dimming control signal to the dimming controller, wherein the dimming controller has a first terminal connected with a positive electrode of an output terminal of the LED constant-current driving power supply, a second terminal connected with a negative electrode of an output terminal of the LED constant-current driving power supply, a third terminal connected with the negative electrode of the LED light source, and a control terminal connected with the external controller; and the dimming controller comprises a power supply circuit, a single chip micromcputer circuit, an analog-to-digital conversion circuit, a sensing touch circuit and a field effect transistor. According to the touch-sensitive constant-current dimming controller, a LED constant-current driving power supply without a dimming function can perform dimming control so as to ensure that products can meet corresponding requirements when exporting.

Description

A kind of touch sensible constant-current dimming controller for LED light source
Technical field
The present invention relates to LED technology field, particularly relate to a kind of touch sensible constant-current dimming controller for LED light source.
Background technology
LED is called forth generation light source, there are energy-saving and environmental protection, safety, life-span length, low-power consumption, low-heat, high brightness, waterproof, miniature, shockproof, easy light modulation, light beam are concentrated, the feature such as easy maintenance, can be widely used in the fields such as various instruction, display, decoration, backlight, general lighting.
LED light source needs LED drive power to drive luminescence usually, current most of LED drive power outlet U.S. all needs UL, and (UL is writing a Chinese character in simplified form of English Underwriter Laboratories Inc. Underwriter Laboratories Inc., the UL safety test Suo Shi U.S. is the most authoritative, also be the larger non-government institution being engaged in safety test and qualification in the world, it is mainly engaged in the safety certification of product and manages security proving business, its final purpose is for market obtains having the commodity of quite safe level, make contributions for health of human body and property safety are guaranteed) certification, but there is no dimming function, and according to the U.S. in 2014 newly regulation power supply to have dimming function.But for now, the power supply kind with dimming function is few, and price and mostly number do not have UL certification.Spend a large sum of certification fee use again to do UL certification, certification fee is before entirely bathing.A kind of dimmer of the special independent design of some producer, but (IP is the abbreviation of Ingress Protection to cost height IP, IP grade is to allotrylic degree of protection for electrical appliance enclosure, source is the standard IEC 60529 of International Electrotechnical Commission, this standard was also adopted to American National Standard in 2004) grade is low, thus have impact on the outlet of product.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, a kind of touch sensible constant-current dimming controller for LED light source is provided, be used for supporting the use with there is no the LED constant current driving power of dimming function, make do not have the LED constant current driving power of dimming function to carry out brightness adjustment control, corresponding requirement when ensure that products export, can be met.
The technical solution adopted for the present invention to solve the technical problems is: a kind of touch sensible constant-current dimming controller for LED light source, comprise one be connected to light adjusting controller between LED constant current driving power and LED light source and one be connected to light adjusting controller to carry the peripheral control unit of external dimmer control signal to described light adjusting controller; The second terminals that described light adjusting controller has the first terminals for being connected with the output head anode of described LED constant current driving power, be used for being connected with the negative pole of output end of described LED constant current driving power, be used for the 3rd terminals and the control port being used for being connected with described peripheral control unit of being connected with the negative pole of described LED light source; Described light adjusting controller comprises power circuit, single chip circuit, analog to digital conversion circuit, touch sensitive circuit and field effect transistor; The positive pole input of described power circuit is connected with the first terminals, and the negative pole of power circuit is connected with the second terminals, and the positive pole of power circuit exports the power connector end being connected to single chip circuit; The input of described single chip circuit is connected with the output of analog to digital conversion circuit, touch sensitive circuit respectively, the input of analog to digital conversion circuit is connected to described control port, the output of described single chip circuit is connected to the grid of field effect transistor, the drain electrode of field effect transistor is connected to described 3rd terminals, the source electrode of field effect transistor is connected to the negative pole of described power circuit, described single chip circuit processes the signal that touch sensitive circuit or peripheral control unit are defeated by, and export modulating pulse, control impuls duty ratio, thus the size of regulation output continuous current.
The direct voltage that the positive pole of described power circuit exports is 10V, and be also provided with 5V voltage stabilizing circuit between power circuit and the power connector end of single chip circuit, the direct voltage 10V that power circuit exports by 5V voltage stabilizing circuit is converted into direct voltage 5V and exports.
Described control port comprise the power cathode for connecting peripheral control unit the 4th terminals, be used for the output voltage signal connecting peripheral control unit the 5th terminals and be used for externally controller the 6th terminals of power supply signal be provided, described 4th terminals are connected with the negative pole of power circuit, described 5th terminals are connected with analog-digital conversion circuit as described, and described 6th terminals export with the positive pole of described power circuit and are connected.
The positive pole of described power circuit exports and is connected with voltage-stabiliser tube.
Described peripheral control unit is microwave sensor.
Described peripheral control unit is light sensor
Described peripheral control unit is adjustable resistance.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, be matched in not have the LED constant current driving power of dimming function to use, wherein, first terminals of light adjusting controller, second terminals, 3rd terminals, 4th terminals, 5th terminals, 6th terminals are connected to the first connecting line, second connecting line, 3rd connecting line, 4th line in succession, 5th connecting line, 6th connecting line, first connecting line achieves the positive pole input being connected to the power circuit of light adjusting controller inside from LED constant current driving power output head anode, the diode input of concrete can be power circuit, second connecting line achieves the negative pole being connected to the power circuit of light adjusting controller inside from LED constant current driving power negative pole of output end, 3rd connecting line achieves the field effect transistor being connected to light adjusting controller inside from the negative pole of LED light source, the drain electrode of field effect transistor that concrete is exactly, the negative pole that 4th connecting line achieves peripheral control unit is connected to the negative pole of the power circuit of light adjusting controller inside, the output voltage signal that 5th connecting line achieves peripheral control unit is connected to the input of the analog to digital conversion circuit of light adjusting controller inside, concrete can be connected on the divider resistance of analog to digital conversion circuit, the positive pole that the power access end that 6th connecting line achieves peripheral control unit is connected to the power circuit of light adjusting controller inside exports, namely on 10V accessory power supply.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, light adjusting controller inside includes power circuit, 5V voltage stabilizing circuit, single chip circuit, analog to digital conversion circuit, touch sensitive circuit and field effect transistor, wherein, the effect of power circuit is that external voltage is converted into DC10V, for outside provides the accessory power supply of 10V; The effect of 5V voltage stabilizing circuit is DC5V by DC10 photovoltaic conversion, for electricity consumptions such as single chip circuits; The effect of touch sensitive circuit human body touch induced signal is converted into digital signal flow to single chip circuit; Analog to digital conversion circuit and A/D convertor circuit transfer external analog control signal to digital signal to flow to single chip circuit; The effect of single chip circuit is analyzing and processing external signal or human body touch induced signal, exports modulating pulse, control impuls duty ratio, thus the size of regulation output continuous current; Field effect transistor adopts speed-sensitive switch power tube, has three pins, connects light source respectively, single-chip microcomputer and power cathode.Peripheral control unit can be microwave sensor or light sensor or street lamp control system, microwave sensor or light sensor etc. produce analog signal according to ambient conditions or street lamp control system produces analog signal, also can simply be made up of an adjustable resistance, object is the voltage signal producing 0-10V.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, during use, the voltage signal of 0-10V is produced by peripheral control unit, pass through analog to digital conversion circuit, become digital signal, single chip circuit, according to the size of digital quantity, produces the pulse signal controlling filed effect pipe work of duty ratio corresponding, the constant current size of output is controlled.Adopt microwave sensor or light sensor or street lamp control system can automatically go to control constant current size, manual mode also can be adopted to control, and as by touch sensitive circuit people for regulating, or adjustable resistance artificially regulates.When adopting light sensor to control, light sensor is by the induction to light intensity, light-sensing signal is transferred to single chip circuit, the signal that light sensor is defeated by by single chip circuit and built-in setup parameter compare, when daytime, light was stronger, by regulating constant current size to make the brightness of LED light source dimmed, when evening, light was more weak, by regulating constant current size, the brightness of LED light source is brightened.When adopting microwave sensor to control, microwave sensor constantly detects near LED light source whether have people, when microwave sensor detected people near time, the induced signal having people close is transferred to single chip circuit by microwave sensor, and single chip circuit makes the brightness of LED light source brighten by regulating constant current size.
Compared with prior art, the invention has the beneficial effects as follows:
Due to have employed one be connected to light adjusting controller between LED constant current driving power and LED light source and one be connected to light adjusting controller to carry the peripheral control unit of external dimmer control signal to form touch sensible constant-current dimming controller to described light adjusting controller, and light adjusting controller includes power circuit, 5V voltage stabilizing circuit, single chip circuit, analog to digital conversion circuit, touch sensitive circuit and field effect transistor form light adjusting controller, light adjusting controller the first terminals had for being connected with the output head anode of described LED constant current driving power, be used for the second terminals be connected with the negative pole of output end of described LED constant current driving power, be used for being connected with the negative pole of described LED light source the 3rd terminals, thus make touch sensible constant-current dimming controller can carry out brightness adjustment control to not having the LED constant current driving power of dimming function, thus corresponding requirement when ensure that products export, can be met.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of touch sensible constant-current dimming controller for LED light source of the present invention is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is circuit connection structure figure of the present invention.
Embodiment
Embodiment
Shown in Fig. 1, Fig. 2, a kind of touch sensible constant-current dimming controller for LED light source of the present invention, comprise one be connected to light adjusting controller 3 between LED constant current driving power 1 and LED light source 2 and one be connected to light adjusting controller to carry the peripheral control unit 4 of external dimmer control signal to described light adjusting controller, the second terminals P2 that described light adjusting controller 3 has the first terminals P1 for being connected with the output head anode of described LED constant current driving power, be used for being connected with the negative pole of output end of described LED constant current driving power, be used for the 3rd terminals P3 and the control port being used for being connected with described peripheral control unit of being connected with the negative pole of described LED light source, described light adjusting controller 3 comprises power circuit 31, single chip circuit 32, analog to digital conversion circuit 33, touch sensitive circuit 34 and field effect transistor 35, the positive pole input of described power circuit 31 is connected with the first terminals P1, the negative pole of power circuit 31 is connected with the second terminals P2, the positive pole of power circuit 31 exports the input being connected to 5V voltage stabilizing circuit 36, the direct voltage that the positive pole of power circuit exports is 10V, the output of 5V voltage stabilizing circuit 36 is connected to the power connector end of single chip circuit 32, and the direct voltage 10V that power circuit 31 exports by 5V voltage stabilizing circuit 36 is converted into direct voltage 5V and exports, the input of described single chip circuit 32 respectively with analog to digital conversion circuit 33, the output of touch sensitive circuit 34 is connected, the input of analog to digital conversion circuit 33 is connected to described control port 37, the output of described single chip circuit 32 is connected to the grid of field effect transistor 35, the drain electrode of field effect transistor 35 is connected to described 3rd terminals P3, the source electrode of field effect transistor 35 is connected to the negative pole of described power circuit 31, the signal that described single chip circuit 32 pairs of touch sensitive circuit 34 or peripheral control unit 4 are defeated by processes, and export modulating pulse, control impuls duty ratio, thus the size of regulation output continuous current.
Described control port 37 comprise the power cathode for connecting peripheral control unit 4 the 4th terminals P4, be used for the output voltage signal connecting peripheral control unit 4 the 5th terminals P5 and be used for externally controller 4 the 6th terminals P6 of power supply signal be provided, described 4th terminals P4 is connected with the negative pole of power circuit 31, described 5th terminals P5 is connected with analog-digital conversion circuit as described 33, and described 6th terminals P6 exports with the positive pole of described power circuit 31 and is connected.
The positive pole of described power circuit 31 exports and is connected with voltage-stabiliser tube.
Described peripheral control unit 4 is microwave sensor, or light sensor, or adjustable resistance, or microwave sensor, light sensor, in adjustable resistance two or three combination, or the control mode of other patterns, such as, street lamp control system etc.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, be matched in not have the LED constant current driving power of dimming function to use, wherein, first terminals P1 of light adjusting controller 3, second terminals P2, 3rd terminals P3, 4th terminals P4, 5th terminals P5, 6th terminals P6 is connected to the first connecting line, second connecting line, 3rd connecting line, 4th line in succession, 5th connecting line, 6th connecting line, first connecting line achieves the positive pole input being connected to the power circuit 31 of light adjusting controller inside from LED constant current driving power 1 output head anode, the diode input of concrete can be power circuit, second connecting line achieves the negative pole of the power circuit 31 being connected to light adjusting controller inside from LED constant current driving power 1 negative pole of output end, 3rd connecting line achieves the field effect transistor 35 being connected to light adjusting controller inside from the negative pole of LED light source 2, the drain electrode of field effect transistor 35 that concrete is exactly, the negative pole that 4th connecting line achieves peripheral control unit 4 is connected to the negative pole of the power circuit 31 of light adjusting controller inside, the output voltage signal that 5th connecting line achieves peripheral control unit 4 is connected to the input of the analog to digital conversion circuit 33 of light adjusting controller inside, concrete can be connected on the divider resistance of analog to digital conversion circuit, the positive pole that the power access end that 6th connecting line achieves peripheral control unit 4 is connected to the power circuit 31 of light adjusting controller inside exports, namely on 10V accessory power supply.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, light adjusting controller inside includes power circuit 31,5V voltage stabilizing circuit 36, single chip circuit 32, analog to digital conversion circuit 33, touch sensitive circuit 34 and field effect transistor 35, wherein, the effect of power circuit 31 is that external voltage is converted into DC10V, for outside provides the accessory power supply of 10V; The effect of 5V voltage stabilizing circuit 36 is DC5V by DC10 photovoltaic conversion, for electricity consumptions such as single chip circuits; The effect of touch sensitive circuit 34 human body touch induced signal is converted into digital signal flow to single chip circuit 32; Analog to digital conversion circuit 33 i.e. A/D convertor circuit transfers external analog control signal to digital signal to flow to single chip circuit 32; The effect of single chip circuit 32 is analyzing and processing external signal or human body touch induced signal, exports modulating pulse, control impuls duty ratio, thus the size of regulation output continuous current; Field effect transistor 35 adopts speed-sensitive switch power tube, has three pins, connects light source respectively, single-chip microcomputer and power cathode.Peripheral control unit 4 can be microwave sensor or light sensor or street lamp control system, microwave sensor or light sensor etc. produce analog signal according to ambient conditions or street lamp control system produces analog signal, also can simply be made up of an adjustable resistance, object is the voltage signal producing 0-10V.
A kind of touch sensible constant-current dimming controller for LED light source of the present invention, during use, the voltage signal of 0-10V is produced by peripheral control unit 4, by analog to digital conversion circuit 33, become digital signal, single chip circuit 32 is according to the size of digital quantity, and the pulse signal producing duty ratio corresponding controls field effect transistor 35 and works, and the constant current size of output is controlled.Adopt microwave sensor or light sensor or street lamp control system can automatically go to control constant current size, manual mode also can be adopted to control, and as by touch sensitive circuit 34 people for regulating, or adjustable resistance artificially regulates.When adopting light sensor to control, light sensor is by the induction to light intensity, light-sensing signal is transferred to single chip circuit 32, the signal that light sensor is defeated by by single chip circuit 32 and built-in setup parameter compare, when daytime, light was stronger, by regulating constant current size to make the brightness of LED light source 2 dimmed, when evening, light was more weak, by regulating constant current size, the brightness of LED light source 2 is brightened.When adopting microwave sensor to control, microwave sensor constantly detects near LED light source whether have people, when microwave sensor detected people near time, the induced signal having people close is transferred to single chip circuit by microwave sensor, and single chip circuit 32 makes the brightness of LED light source brighten by regulating constant current size.
Above-described embodiment is only used for further illustrating a kind of touch sensible constant-current dimming controller for LED light source of the present invention; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection range of technical solution of the present invention.

Claims (7)

1. for a touch sensible constant-current dimming controller for LED light source, comprise one be connected to light adjusting controller between LED constant current driving power and LED light source and one be connected to light adjusting controller to carry the peripheral control unit of external dimmer control signal to described light adjusting controller; The second terminals that described light adjusting controller has the first terminals for being connected with the output head anode of described LED constant current driving power, be used for being connected with the negative pole of output end of described LED constant current driving power, be used for the 3rd terminals and the control port being used for being connected with described peripheral control unit of being connected with the negative pole of described LED light source; Described light adjusting controller comprises power circuit, single chip circuit, analog to digital conversion circuit, touch sensitive circuit and field effect transistor; The positive pole input of described power circuit is connected with the first terminals, and the negative pole of power circuit is connected with the second terminals, and the positive pole of power circuit exports the power connector end being connected to single chip circuit; The input of described single chip circuit is connected with the output of analog to digital conversion circuit, touch sensitive circuit respectively, the input of analog to digital conversion circuit is connected to described control port, the output of described single chip circuit is connected to the grid of field effect transistor, the drain electrode of field effect transistor is connected to described 3rd terminals, the source electrode of field effect transistor is connected to the negative pole of described power circuit, described single chip circuit processes the signal that touch sensitive circuit or peripheral control unit are defeated by, and export modulating pulse, control impuls duty ratio, thus the size of regulation output continuous current.
2. the touch sensible constant-current dimming controller for LED light source according to claim 1, it is characterized in that: the direct voltage that the positive pole of described power circuit exports is 10V, also be provided with 5V voltage stabilizing circuit between power circuit and the power connector end of single chip circuit, the direct voltage 10V that power circuit exports by 5V voltage stabilizing circuit is converted into direct voltage 5V and exports.
3. the touch sensible constant-current dimming controller for LED light source according to claim 1, it is characterized in that: described control port comprise the power cathode for connecting peripheral control unit the 4th terminals, be used for the output voltage signal connecting peripheral control unit the 5th terminals and be used for externally controller the 6th terminals of power supply signal be provided, described 4th terminals are connected with the negative pole of power circuit, described 5th terminals are connected with analog-digital conversion circuit as described, and described 6th terminals export with the positive pole of described power circuit and are connected.
4. the touch sensible constant-current dimming controller for LED light source according to claim 2, is characterized in that: the positive pole of described power circuit exports and is connected with voltage-stabiliser tube.
5. the touch sensible constant-current dimming controller for LED light source according to claim 1, is characterized in that: described peripheral control unit is microwave sensor.
6. the touch sensible constant-current dimming controller for LED light source according to claim 1, is characterized in that: described peripheral control unit is light sensor
7. the touch sensible constant-current dimming controller for LED light source according to claim 1, is characterized in that: described peripheral control unit is adjustable resistance.
CN201410338563.1A 2014-07-16 2014-07-16 A kind of touch sensible constant-current dimming controller for LED light source Expired - Fee Related CN104981052B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028297A1 (en) * 2016-08-10 2018-02-15 东莞邦达五金有限公司 Omnidirectional sensing and stepless dimming method and device for led light
CN107914636A (en) * 2017-12-19 2018-04-17 车质尚(北京)汽车制造有限公司 Vehicle-mounted light adjusting controller

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US20130093348A1 (en) * 2010-06-22 2013-04-18 Inventronics (Hangzhou), Inc. Method, apparatus and system for controlling light source
CN103124459A (en) * 2013-01-04 2013-05-29 安提亚科技股份有限公司 Color and brightness adjustable light-adjusting method and device and illuminating system
CN103167691A (en) * 2013-03-04 2013-06-19 江南大学 Light emitting diode (LED) driving power supply and dimming system

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US20130093348A1 (en) * 2010-06-22 2013-04-18 Inventronics (Hangzhou), Inc. Method, apparatus and system for controlling light source
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Publication number Priority date Publication date Assignee Title
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