CN204350379U - A kind of control device of color temperature LED light source - Google Patents
A kind of control device of color temperature LED light source Download PDFInfo
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- CN204350379U CN204350379U CN201420865010.7U CN201420865010U CN204350379U CN 204350379 U CN204350379 U CN 204350379U CN 201420865010 U CN201420865010 U CN 201420865010U CN 204350379 U CN204350379 U CN 204350379U
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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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- 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
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Abstract
The utility model relates to a kind of control device of color temperature LED light source, disclose a kind of control device of color temperature LED light source, comprise cool colour temperature LED light source, warm colour temperature LED light source, AC power, the stabilized switch module be connected with AC power, the constant-current driven module for the current signal of stable output, the switching signal for stable output photoelectric coupling module, for exporting signal processing module and the reversal module of control signal.The control device of a kind of color temperature LED light source that the utility model provides, rational in infrastructure, two kinds of LED and microcontroller is adopted to cooperatively interact, make two kinds of different-colour LED alternate energisations luminous, realize the adjustable color of LED lamp, additionally use the core of driving chip as constant-current voltage-stabilizing module simultaneously, make circuit can export variable pwm pulse, thus make LED can at the 10%-100% operated within range of rated power, the function of light modulation can not only be realized, also be applicable to multiple occasion, substantially increase the result of use of color temperature LED.
Description
[technical field]
The utility model relates to a kind of control device of color temperature LED light source.
[background technology]
At present, LED flat lamp is widely used in various illumination occasion as a kind of lighting, due to different occasion, different client has different requirements to LED illumination colour temperature, existing light modulation color-temperature regulating adopts segmented and two kinds of LED lamp bead colour temperature mixing, then realizes light modulation colour temperature by adding different electric currents to two kinds of LED lamp bead.But it still has shortcoming: complex structure, procedure of processing is loaded down with trivial details, and production cost is high, and is difficult to realize in flat illuminating lamp.
[utility model content]
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of control device of color temperature LED light source, and it is intended to solve the technical problem that color temperature LED structure of the prior art is complicated, rate-determining steps is loaded down with trivial details.
For achieving the above object, the utility model proposes a kind of control device of color temperature LED light source, comprise cool colour temperature LED light source, warm colour temperature LED light source, AC power, the stabilized switch module be connected with AC power, for the constant-current driven module of the current signal of stable output, for the photoelectric coupling module of the switching signal of stable output, for exporting signal processing module and the reversal module of control signal, described stabilized switch module is all connected with photoelectric coupling module with constant-current driven module, described constant-current driven module is connected with reversal module, described photoelectric coupling module is connected with signal processing module, described signal processing module is also connected with reversal module, described reversal module comprises symmetrical left-half and right half part, described left-half and right half part connection parallel with one another, described left-half is connected with cool colour temperature LED light source, described right half part is connected with warm colour temperature LED light source,
Described stabilized switch module comprises two relay K 1 and K2 that level positive with AC power be respectively connected with negative level, described photoelectric coupling module comprises photoelectrical coupler U1, the input of described photoelectrical coupler U1 is connected with K2 with relay K 1, output is connected with signal processing module, described signal processing module comprises microcontroller U2, described microcontroller is provided with input Test, first output out1 and the second output out2, described input Test is connected with the output of photoelectrical coupler U1, the first described output out1 is connected with right half part with the left-half of reversal module respectively with the second output out2.
As preferably, described stabilized switch module also comprises coil L1, coil L1, electric capacity C1, polar capacitor C2, diode D1, diode D2, diode D3 and diode D4, coil L1 is connected with relay K 1 and relay K 2 respectively with coil L2, diode D1, diode D2, diode D3 and diode D4 forms rectifier bridge jointly, the anode of diode D1 is connected with coil L1, the anode of diode D4 is connected with coil L2, be connected with earth terminal together after the anode of diode D2 is connected with the anode of diode D3, be connected with constant-current driven module together after the negative electrode of diode D1 is connected with the negative electrode of diode D4, electric capacity C1 and rectifier bridge are connected in parallel, the positive pole of polar capacitor C2 is connected with the negative electrode of diode D1, negative pole is connected with earth terminal.
As preferably, described constant-current driven module comprises driving chip U3, polar capacitor C3, electric capacity C4, electric capacity C5, polar capacitor C6, electric capacity C7, coil L3, transformer L4, diode D5, diode D6, diode D7, field effect transistor Q1, transformation coil resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9 and parallel resistance group, driving chip U3 comprises voltage end VDD, relatively output COM, relatively input INV, earth terminal GND, door input GA and current input terminal CS, resistance R1 one end is connected with stabilized switch module, the other end is connected with voltage end VDD, and one end of polar capacitor C3 is also connected with resistance R1, the other end by electric capacity C4 with compare output COM and be connected, also direct ground connection after resistance R2 and polar capacitor C3 is connected in parallel, diode D5, resistance R3 after being connected in series with resistance R4 together with compare input INV and be connected, the negative electrode of diode D5 is connected with resistance R1, and one end of resistance R5 is connected with resistance R4, the other end is connected with earth terminal, earth terminal GND is connected with earth terminal, current input terminal CS is connected with resistance R1 with resistance R7 by the resistance R6 be mutually connected in series, the positive pole of polar capacitor C6 is connected with stabilized switch module, be connected with current input terminal CS together with after the other end connects with resistance R7, the grid level of field effect transistor Q1 is connected with door input GA, source electrode is connected with current input terminal CS after being connected with resistance R8 by the electric capacity C5 of connection parallel with one another, drain electrode is by coil L3 and stabilized switch model calling, and electric capacity C7 and resistance R9 is connected in parallel rear one end and stabilized switch model calling, the other end is connected with the negative electrode of diode D6, and the anode of diode D6 is connected with the drain electrode of field effect transistor Q1, and the source class of field effect transistor Q1 is also connected with earth terminal by parallel resistance group, and primary coil one end of transformer L4 is connected with resistance R3, the other end is connected with earth terminal, and secondary coil one end of transformer L4 is connected with the negative electrode of diode D7, the direct ground connection of the other end, the anode of diode D7 is connected with polarity transformation circuits.
As preferably, described photoelectric coupling module also comprises diode D8, resistance R10 and polar capacitor C9, input one tunnel of photoelectrical coupler U1 is directly connected with relay K 1, the diode D8 that is connected in series and resistance R10 of separately leading up to is connected with relay K 2, the anode of diode D8 is connected with relay K 2, output one tunnel of photoelectrical coupler U1 is directly connected with signal processing module, another road is connected with earth terminal, and the positive pole of polar capacitor C9 is connected with signal processing module, negative pole is connected with earth terminal.
As preferably, described signal processing module also comprises electromagnetically operated valve U4, polar capacitor C10 and extraneous burning voltage, microcontroller U2 also comprises power end VDD and negative pole end VSS, battery valve U4 comprises input Vin, output end vo ut and earth terminal GND, input Vin is connected with extraneous burning voltage, output end vo ut is connected with power end VDD, the direct ground connection of earth terminal GND, the positive pole of polar capacitor C10 is connected with output end vo ut, the direct ground connection of negative pole, the direct ground connection of negative pole end VSS of microcontroller U2.
As preferably, the left-half of described reversal module comprises resistance R10, resistance R11, resistance R12, resistance R13, field effect transistor Q2, field effect transistor Q3 and field effect R4, the grid level of field effect transistor Q2 is connected with the first output out1 of microcontroller U2, the direct ground connection of source class, drain electrode is connected with the source class of field effect transistor Q3 by resistance R10, the grid level of field effect transistor Q2 is also connected with the source class of self by resistance R11, the drain electrode of field effect transistor Q3 is connected with constant-current voltage-stabilizing module, the grid level of field effect transistor Q3 is connected with the drain electrode of self by resistance R12, be connected with cool colour temperature LED together with after the source class of field effect transistor Q3 connects with the drain electrode of field effect transistor Q4, the grid level of field effect transistor Q4 is also connected with constant-current voltage-stabilizing module, the direct ground connection of source class, the grid level of field effect transistor Q4 is also connected with the source class of self by resistance R13,
The right half part of described polarity transformation circuits is identical with left-half structure, and described left-half is connected with right half part with the source class of field effect transistor Q4 by the drain electrode of field effect transistor Q3.
The beneficial effects of the utility model: compared with prior art, the control device of a kind of color temperature LED light source that the utility model provides, rational in infrastructure, two kinds of LED and microcontroller is adopted to cooperatively interact, make two kinds of different-colour LED alternate energisations luminous, realize the adjustable color of LED lamp, additionally use the core of driving chip as constant-current voltage-stabilizing module simultaneously, make circuit can export variable pwm pulse, thus make LED can at the 10%-100% operated within range of rated power, the function of light modulation can not only be realized, also be applicable to multiple occasion, substantially increase the result of use of color temperature LED.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the syndeton schematic diagram of the utility model embodiment.
[embodiment]
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by accompanying drawing and embodiment, the utility model is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the utility model, is not limited to scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
Consult Fig. 1, the utility model embodiment provides a kind of control device of color temperature LED light source, comprise cool colour temperature LED light source, warm colour temperature LED light source, AC power, the stabilized switch module be connected with AC power, for the constant-current driven module of the current signal of stable output, for the photoelectric coupling module of the switching signal of stable output, for exporting signal processing module and the reversal module of control signal, stabilized switch module is all connected with photoelectric coupling module with constant-current driven module, constant-current driven module is connected with reversal module, photoelectric coupling module is connected with signal processing module, signal processing module is also connected with reversal module, reversal module comprises symmetrical left-half and right half part, left-half and right half part connection parallel with one another, left-half is connected with cool colour temperature LED light source, right half part is connected with warm colour temperature LED light source.
In the utility model embodiment, left-half is identical with the structure of right half part, its voltage all exported using constant-current voltage-stabilizing module as driving voltage, and after being interconnected direct ground connection together.
Particularly, stabilized switch module comprises two relay K 1 and K2 that level positive with AC power be respectively connected with negative level, photoelectric coupling module comprises photoelectrical coupler U1, the input of photoelectrical coupler U1 is connected with K2 with relay K 1, output is connected with signal processing module, signal processing module comprises microcontroller U2, microcontroller is provided with input Test, first output out1 and the second output out2, input Test is connected with the output of photoelectrical coupler U1, first output out1 is connected with right half part with the left-half of reversal module respectively with the second output out2.
Further, stabilized switch module also comprises coil L1, coil L1, electric capacity C1, polar capacitor C2, diode D1, diode D2, diode D3 and diode D4, coil L1 is connected with relay K 1 and relay K 2 respectively with coil L2, diode D1, diode D2, diode D3 and diode D4 forms rectifier bridge jointly, the anode of diode D1 is connected with coil L1, the anode of diode D4 is connected with coil L2, be connected with earth terminal together after the anode of diode D2 is connected with the anode of diode D3, be connected with constant-current driven module together after the negative electrode of diode D1 is connected with the negative electrode of diode D4, electric capacity C1 and rectifier bridge are connected in parallel, the positive pole of polar capacitor C2 is connected with the negative electrode of diode D1, negative pole is connected with earth terminal.
Particularly, constant-current driven module comprises driving chip U3, polar capacitor C3, electric capacity C4, electric capacity C5, polar capacitor C6, electric capacity C7, coil L3, transformer L4, diode D5, diode D6, diode D7, field effect transistor Q1, transformation coil resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9 and parallel resistance group, driving chip U3 comprises voltage end VDD, relatively output COM, relatively input INV, earth terminal GND, door input GA and current input terminal CS, resistance R1 one end is connected with stabilized switch module, the other end is connected with voltage end VDD, and one end of polar capacitor C3 is also connected with resistance R1, the other end by electric capacity C4 with compare output COM and be connected, also direct ground connection after resistance R2 and polar capacitor C3 is connected in parallel, diode D5, resistance R3 after being connected in series with resistance R4 together with compare input INV and be connected, the negative electrode of diode D5 is connected with resistance R1, and one end of resistance R5 is connected with resistance R4, the other end is connected with earth terminal, earth terminal GND is connected with earth terminal, current input terminal CS is connected with resistance R1 with resistance R7 by the resistance R6 be mutually connected in series, the positive pole of polar capacitor C6 is connected with stabilized switch module, be connected with current input terminal CS together with after the other end connects with resistance R7, the grid level of field effect transistor Q1 is connected with door input GA, source electrode is connected with current input terminal CS after being connected with resistance R8 by the electric capacity C5 of connection parallel with one another, drain electrode is by coil L3 and stabilized switch model calling, and electric capacity C7 and resistance R9 is connected in parallel rear one end and stabilized switch model calling, the other end is connected with the negative electrode of diode D6, and the anode of diode D6 is connected with the drain electrode of field effect transistor Q1, and the source class of field effect transistor Q1 is also connected with earth terminal by parallel resistance group, and primary coil one end of transformer L4 is connected with resistance R3, the other end is connected with earth terminal, and secondary coil one end of transformer L4 is connected with the negative electrode of diode D7, the direct ground connection of the other end, the anode of diode D7 is connected with polarity transformation circuits.
Particularly, photoelectric coupling module also comprises diode D8, resistance R10 and polar capacitor C9, input one tunnel of photoelectrical coupler U1 is directly connected with relay K 1, the diode D8 that is connected in series and resistance R10 of separately leading up to is connected with relay K 2, the anode of diode D8 is connected with relay K 2, output one tunnel of photoelectrical coupler U1 is directly connected with signal processing module, another road is connected with earth terminal, and the positive pole of polar capacitor C9 is connected with signal processing module, negative pole is connected with earth terminal.
Particularly, signal processing module also comprises electromagnetically operated valve U4, polar capacitor C10 and extraneous burning voltage, microcontroller U2 also comprises power end VDD and negative pole end VSS, battery valve U4 comprises input Vin, output end vo ut and earth terminal GND, input Vin is connected with extraneous burning voltage, and output end vo ut is connected with power end VDD, the direct ground connection of earth terminal GND, the positive pole of polar capacitor C10 is connected with output end vo ut, the direct ground connection of negative pole, the direct ground connection of negative pole end VSS of microcontroller U2.
Particularly, the left-half of reversal module comprises resistance R10, resistance R11, resistance R12, resistance R13, field effect transistor Q2, field effect transistor Q3 and field effect R4, the grid level of field effect transistor Q2 is connected with the first output out1 of microcontroller U2, the direct ground connection of source class, drain electrode is connected with the source class of field effect transistor Q3 by resistance R10, the grid level of field effect transistor Q2 is also connected with the source class of self by resistance R11, the drain electrode of field effect transistor Q3 is connected with constant-current voltage-stabilizing module, the grid level of field effect transistor Q3 is connected with the drain electrode of self by resistance R12, be connected with cool colour temperature LED together with after the source class of field effect transistor Q3 connects with the drain electrode of field effect transistor Q4, the grid level of field effect transistor Q4 is also connected with constant-current voltage-stabilizing module, the direct ground connection of source class, the grid level of field effect transistor Q4 is also connected with the source class of self by resistance R13.
Further, the right half part of polarity transformation circuits is identical with left-half structure, and left-half is connected with right half part with the source class of field effect transistor Q4 by the drain electrode of field effect transistor Q3.
Specific works process of the present utility model is as follows: after relay switch K1 and K2 opens, constant-current driven module is started working, and burning voltage is supplied to signal processing module, and dipole inversion module is as the out-put supply of cool colour temperature LED and warm colour temperature LED.When signal processing module receives the first time switching signal of photoelectric coupling module transfer, control dipole inversion module and cool colour temperature LED is lighted, now LED light source is cool colour temperature operating state.Open again after relay switch K1 and K2 closes, after microcontroller U2 receives the second time switching signal of photoelectric coupling module, control the reversion of dipole inversion module, after dipole inversion, cool colour temperature LED does not work because of voltage reversal, contrary warm colour temperature LED adds forward voltage and is lit, and now LED light source is warm colour temperature operating state.
Wherein, cool colour temperature state is: when relay switch K1 and K2 opens, driving chip U3 starts working, and give signal processing module and dipole inversion module for power supply, simultaneously, photoelectric coupling module will detect that switching signal gives microcontroller U2, after microcontroller U2 detects after analysis is first signal, control polarity control module and cool colour temperature LED forward is lighted, warm colour temperature LED does not then work because adding reverse voltage, and now LED light source is operated in cool colour temperature state.
Warm colour temperature state is: when opening in 5s after relay switch K1 and K2 closes, namely when second time is started shooting, photoelectric coupling module detects that second time switching signal gives microcontroller U2, after microcontroller U2 is identified as second start signal, control polarity switch exports, warm colour LED light source forward is lighted, and " cool colour LED light source " two ends do not work because adding reverse voltage, and now LED is operated in cool colour state.
Memory function: under any one state of above-mentioned two kinds, colour temperature state switch waits more than 5 seconds single-chip microcomputers to preserve also last shutdown after cutting out before.The colour temperature state before shutdown last time is recovered voluntarily when next time starts shooting.
Colour temperature synchronous correction function: when a lamps common switch control rule, when may occur that several lamp changes in temperature warm colour is inconsistent, available colour temperature synchronous correction function corrects.Method is; After switch open, as inconsistent in several lamp color temperature, can shut down, three times colour temperature is synchronous automatically afterwards to wait for more than 5 seconds rear switches at once.
Dimming function: when electric power starting continuously by 4 times mains switches, LED intelligent control device is by the power of output 10%, and LED is operated in battery saving mode.
Wherein, the shape of color temperature LED control device shell can according to LED down, LED Ceiling light, and the difference such as LED flat lamp requires and designs.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. the control device of a color temperature LED light source, it is characterized in that: comprise cool colour temperature LED light source, warm colour temperature LED light source, AC power, the stabilized switch module be connected with AC power, for the constant-current driven module of the current signal of stable output, for the photoelectric coupling module of the switching signal of stable output, for exporting signal processing module and the reversal module of control signal, described stabilized switch module is all connected with photoelectric coupling module with constant-current driven module, described constant-current driven module is connected with reversal module, described photoelectric coupling module is connected with signal processing module, described signal processing module is also connected with reversal module, described reversal module comprises symmetrical left-half and right half part, described left-half and right half part connection parallel with one another, described left-half is connected with cool colour temperature LED light source, described right half part is connected with warm colour temperature LED light source,
Described stabilized switch module comprises two relay K 1 and K2 that level positive with AC power be respectively connected with negative level, described photoelectric coupling module comprises photoelectrical coupler U1, the input of described photoelectrical coupler U1 is connected with K2 with relay K 1, output is connected with signal processing module, described signal processing module comprises microcontroller U2, described microcontroller is provided with input Test, first output out1 and the second output out2, described input Test is connected with the output of photoelectrical coupler U1, the first described output out1 is connected with right half part with the left-half of reversal module respectively with the second output out2.
2. the control device of a kind of color temperature LED light source as claimed in claim 1, it is characterized in that: described stabilized switch module also comprises coil L1, coil L2, electric capacity C1, polar capacitor C2, diode D1, diode D2, diode D3 and diode D4, coil L1 is connected with relay K 1 and relay K 2 respectively with coil L2, diode D1, diode D2, diode D3 and diode D4 forms rectifier bridge jointly, the anode of diode D1 is connected with coil L1, the anode of diode D4 is connected with coil L2, be connected with earth terminal together after the anode of diode D2 is connected with the anode of diode D3, be connected with constant-current driven module together after the negative electrode of diode D1 is connected with the negative electrode of diode D4, electric capacity C1 and rectifier bridge are connected in parallel, the positive pole of polar capacitor C2 is connected with the negative electrode of diode D1, negative pole is connected with earth terminal.
3. the control device of a kind of color temperature LED light source as claimed in claim 1, is characterized in that: described constant-current driven module comprises driving chip U3, polar capacitor C3, electric capacity C4, electric capacity C5, polar capacitor C6, electric capacity C7, coil L3, transformer L4, diode D5, diode D6, diode D7, field effect transistor Q1, transformation coil resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9 and parallel resistance group, driving chip U3 comprises voltage end VDD, relatively output COM, relatively input INV, earth terminal GND, door input GA and current input terminal CS, resistance R1 one end is connected with stabilized switch module, the other end is connected with voltage end VDD, and one end of polar capacitor C3 is also connected with resistance R1, the other end by electric capacity C4 with compare output COM and be connected, also direct ground connection after resistance R2 and polar capacitor C3 is connected in parallel, diode D5, resistance R3 after being connected in series with resistance R4 together with compare input INV and be connected, the negative electrode of diode D5 is connected with resistance R1, and one end of resistance R5 is connected with resistance R4, the other end is connected with earth terminal, earth terminal GND is connected with earth terminal, current input terminal CS is connected with resistance R1 with resistance R7 by the resistance R6 be mutually connected in series, the positive pole of polar capacitor C6 is connected with stabilized switch module, be connected with current input terminal CS together with after the other end connects with resistance R7, the grid level of field effect transistor Q1 is connected with door input GA, source electrode is connected with current input terminal CS after being connected with resistance R8 by the electric capacity C5 of connection parallel with one another, drain electrode is by coil L3 and stabilized switch model calling, and electric capacity C7 and resistance R9 is connected in parallel rear one end and stabilized switch model calling, the other end is connected with the negative electrode of diode D6, and the anode of diode D6 is connected with the drain electrode of field effect transistor Q1, and the source class of field effect transistor Q1 is also connected with earth terminal by parallel resistance group, and primary coil one end of transformer L4 is connected with resistance R3, the other end is connected with earth terminal, and secondary coil one end of transformer L4 is connected with the negative electrode of diode D7, the direct ground connection of the other end, the anode of diode D7 is connected with polarity transformation circuits.
4. the control device of a kind of color temperature LED light source as claimed in claim 1, it is characterized in that: described photoelectric coupling module also comprises diode D8, resistance R10 and polar capacitor C9, input one tunnel of photoelectrical coupler U1 is directly connected with relay K 1, the diode D8 be connected in series of separately leading up to is connected with relay K 2 with resistance R10, the anode of diode D8 is connected with relay K 2, output one tunnel of photoelectrical coupler U1 is directly connected with signal processing module, another road is connected with earth terminal, the positive pole of polar capacitor C9 is connected with signal processing module, negative pole is connected with earth terminal.
5. the control device of a kind of color temperature LED light source as claimed in claim 1, it is characterized in that: described signal processing module also comprises electromagnetically operated valve U4, polar capacitor C10 and extraneous burning voltage, microcontroller U2 also comprises power end VDD and negative pole end VSS, battery valve U4 comprises input Vin, output end vo ut and earth terminal GND, input Vin is connected with extraneous burning voltage, output end vo ut is connected with power end VDD, the direct ground connection of earth terminal GND, the positive pole of polar capacitor C10 is connected with output end vo ut, the direct ground connection of negative pole, the direct ground connection of negative pole end VSS of microcontroller U2.
6. the control device of a kind of color temperature LED light source according to any one of claim 1 to 5, it is characterized in that: the left-half of described reversal module comprises resistance R10, resistance R11, resistance R12, resistance R13, field effect transistor Q2, field effect transistor Q3 and field effect R4, the grid level of field effect transistor Q2 is connected with the first output out1 of microcontroller U2, the direct ground connection of source class, drain electrode is connected with the source class of field effect transistor Q3 by resistance R10, the grid level of field effect transistor Q2 is also connected with the source class of self by resistance R11, the drain electrode of field effect transistor Q3 is connected with constant-current voltage-stabilizing module, the grid level of field effect transistor Q3 is connected with the drain electrode of self by resistance R12, be connected with cool colour temperature LED together with after the source class of field effect transistor Q3 connects with the drain electrode of field effect transistor Q4, the grid level of field effect transistor Q4 is also connected with constant-current voltage-stabilizing module, the direct ground connection of source class, the grid level of field effect transistor Q4 is also connected with the source class of self by resistance R13,
The right half part of described polarity transformation circuits is identical with left-half structure, and described left-half is connected with right half part with the source class of field effect transistor Q4 by the drain electrode of field effect transistor Q3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865010.7U CN204350379U (en) | 2014-12-29 | 2014-12-29 | A kind of control device of color temperature LED light source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865010.7U CN204350379U (en) | 2014-12-29 | 2014-12-29 | A kind of control device of color temperature LED light source |
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| CN204350379U true CN204350379U (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582169A (en) * | 2014-12-29 | 2015-04-29 | 浙江欧易新能源有限公司 | Control device of color-temperature-changing LED light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582169A (en) * | 2014-12-29 | 2015-04-29 | 浙江欧易新能源有限公司 | Control device of color-temperature-changing LED light source |
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