CN204046879U - A kind of LED toning control circuit - Google Patents
A kind of LED toning control circuit Download PDFInfo
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- CN204046879U CN204046879U CN201420460139.XU CN201420460139U CN204046879U CN 204046879 U CN204046879 U CN 204046879U CN 201420460139 U CN201420460139 U CN 201420460139U CN 204046879 U CN204046879 U CN 204046879U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a kind of LED toning control circuit, comprise LED light module, LED control module and driver module.LED light module comprises LED group, and LED control module controls LED group according to the state of switch on wall.Driver module is connected with LED light module, by a current output terminal of driver module to its output services electric current.LED control module comprises a control signal output, and driver module comprises a voltage controling end; Control signal output is connected with voltage controling end; When the state variation of switch on wall, control signal output sends a voltage control signal to voltage controling end, the voltage of voltage controling end increases according to voltage control signal or reduces, linearly to increase or to reduce the size of the operating current that driver module exports to described LED light module.Adopt after technique scheme, user, can according to the brightness of service condition and personal like's trace or linear regulation LED when regulating the brightness of LED.
Description
Technical field
The utility model relates to LED lamp control circuit field, particularly relates to a kind of LED toning control circuit.
Background technology
In current domestic and international market, the favor degree of consumer to LED product is more and more higher, and the LED product especially can carrying out light modulation toning obtains the consistent approval of consumers in general, and this product generally all can meet the demand of the different-colour in consumer's focus ring border.In annual seasonal variations, the light of different-colour is different to the comfort level of people.Therefore, the LED product of a lot of light modulation toning is all emerged in domestic and international market.But because its control mode all adopts wireless remote control, infrared remote control etc. carry out light modulation toning, the adjustment for the brightness of LED only has several gear, cannot meet the requirement that the brightness of user's needs to LED is finely tuned.
Therefore, needing a kind ofly to control the LED control circuit of LED luminance by Linear fine tuning, making user when regulating the brightness of LED, can according to the brightness of service condition and personal like's trace or linear regulation LED.
Utility model content
The purpose of this utility model is to provide a kind of LED toning control circuit, and its structure is simple, and cost is low.Utilize switch on wall to the control of wherein LED control module, trace can be carried out to the brightness of LED light module and regulate.Meanwhile, do not affect the adjustment to LED light module colour temperature, two kinds of adjustments can walk abreast, no matter and to colour temperature do which kind of regulate, the overall brightness of LED is consistent.
The utility model discloses a kind of LED toning control circuit, comprise LED light module, LED control module, driver module; Described LED light module comprises LED group, and described LED control module controls described LED group according to the state of switch on wall; Described driver module is connected with described LED light module, and by a current output terminal of described driver module to its output services electric current, described LED control module comprises a control signal output, and described driver module comprises a voltage controling end; Described control signal output is connected with described voltage controling end; When the state variation of described switch on wall, described control signal output sends a voltage control signal to described voltage controling end, the voltage of described voltage controling end increases according to described voltage control signal or reduces, linearly to increase or to reduce the size of the operating current that described driver module exports to described LED light module.
Preferably, described LED control module comprises single-chip microcomputer, and described driver module comprises IC chip; Described control signal output is an I/O port of described single-chip microcomputer; Described voltage controling end is the MULT pin of described IC chip; The current output terminal of described driver module is the FB pin of described IC chip.
Preferably, described LED control module also comprises city's power detection circuit, and it is connected with the vdd terminal of described single-chip microcomputer.
Preferably, the voltage of described MULT pin is 0-1V.
Preferably, described LED control module also comprises a diode D1 and electric capacity C1, is connected to an I/O port of described single-chip microcomputer.
Preferably, described LED toning control circuit also comprises sampling resistor unit, is connected between described driver module and LED light module.
Preferably, described sampling resistor unit comprises the first resistance R1, the second resistance R2, the 3rd resistance R3 and switching tube Q1; Described first resistance R1 and the second resistance R2 is parallel between described driver module and LED light module; Described 3rd resistance R3 is connected to the inter-collector of described driver module and described switching tube Q1; The base stage of described switching tube Q1 is connected with described LED control module; The emitter of described switching tube Q1 is in parallel with described first resistance R1 and the second resistance R2.
Preferably, described first resistance R1 is equal with the resistance of the second resistance R2; The resistance of described 3rd resistance R3 is the resistance of described second resistance R2
when described switching tube Q1 conducting, the resistance of described sampling resistor unit is R; When described switching tube Q1 turns off, the resistance of described sampling resistor unit is R '; Wherein R '=2*R.
Preferably, described LED light module comprises the first LED chip group and the second LED chip group; When described first LED chip group or the luminescence of the second LED chip group, the electric current of described LED light module is I1; When described first LED chip group and the luminescence of the second LED chip group, the electric current of described LED light module is I2; Wherein I2=2*I1.
Preferably, the colour temperature of described first LED chip group is 5700K; The colour temperature of described second LED chip group is 2700K.
Preferably, described LED toning control circuit also comprises voltage-multiplying circuit; Described voltage-multiplying circuit is connected with described driver module, powers to described driver module.
Preferably, between described driver module and described LED illuminating module, be also provided with a metal-oxide-semiconductor, controlled conducting and the cut-off of described metal-oxide-semiconductor by described driver module to the operating current that described LED illuminating module exports.
Preferably, described LED control circuit of mixing colours also comprises and fills out paddy circuit; Described paddy circuit of filling out is connected with described LED control module.
Preferably, described voltage control signal is PWM modulation signal or low and high level signal.
After adopting technique scheme, there is following beneficial effect:
1. utilize switch on wall to the control of wherein LED control module, fine adjustments can be carried out to LED luminance;
2. the adjustment of pair LED luminance and colour temperature can be carried out simultaneously, does not affect the adjustment to LED light module colour temperature;
3. no matter how colour temperature regulates, and overall brightness can ensure.
Accompanying drawing explanation
Fig. 1 is LED toning control circuit schematic diagram in the utility model one preferred embodiment;
Fig. 2 is the LED toning control circuit schematic diagram for great power LED load in the utility model one preferred embodiment;
Fig. 3 is the curve characteristic schematic diagram of the voltage controling end of driver module in the utility model one preferred embodiment;
Fig. 4 is the circuit diagram of the voltage-multiplying circuit after simplifying in the utility model one preferred embodiment;
Fig. 5 is the circuit diagram filling out paddy circuit in the utility model one embodiment.
Reference numeral:
10-LED light emitting module, 11-first LED chip group, 12-second LED chip group, 13-NPN triode;
20-LED control module, 21-single-chip microcomputer, 22-city power detection circuit;
30-driver module, 31-IC chip, 32-MOS manage;
40-sampling resistor unit;
50-voltage-multiplying circuit.
Embodiment
Advantage of the present utility model is set forth further below in conjunction with accompanying drawing and specific embodiment.
Consulting Fig. 1, is LED toning control circuit schematic diagram in the utility model one preferred embodiment.This LED mixes colours in control circuit, the driver module 30 comprising LED light module 10, the LED control module 20 be connected with LED light module 10 and be connected with LED light module 10 and LED control module 20 respectively.LED light module 10 have can emitting led luminous tube group and control respectively each LED group open and turn off NPN triode 13, wherein LED group includes the LED chip group of one or more luminescence.LED control module 20 is connected with LED light module 10, and controls the luminance of the LED group in this LED light module 10 according to the state variation of switch on wall.Particularly, the conducting state of the direct control NPN triode 13 of LED control module 20, when a NPN triode 13 is controlled as conducting, the LED group nature operating illumination of its correspondence, and when a NPN triode 13 is controlled as cut-off, the LED group of its correspondence does not work naturally.In the present embodiment, driver module 30 is connected with LED light module 10 and LED control module 20 respectively, and provides electrical power to above-mentioned two modules.Particularly, driver module 30 has a current output terminal, and this current output terminal is to LED light module 10 output services electric current.In order to reach the purpose of this utility model, be provided with a control signal output at LED control module 20 place, be used as externally to send control command, and at driver module 30 place, be provided with a voltage controling end, the voltage of this voltage controling end can be changed according to the control command received.Particularly, above-mentioned control signal output is connected with voltage controling end, and when user to operate switch on wall thus changes the state of switch on wall, send a control signal by control signal output to the voltage controling end of driver module 30 by LED control module 20 is controlled.Voltage controling end is while receiving this control signal, the order that its voltage is controlled signal increases or reduces, due to the character of driver module 30 itself, when the voltage of this voltage controling end changes, its size of current also corresponding change exported to LED light module 10, therefore, its operating current exported also correspondingly increases reduction with the increase reduction of the voltage of voltage controling end.Meanwhile, the interval that the voltage due to voltage controling end changes is less, and the interval of the change of above-mentioned operating current is also thereupon less, and its changing value is linearly adjustable.Therefore, the size of the electric current that user's LED light module 10 that utilized switch on wall to the operation change of LED control module 20 receives, and this size of current linearly changes, then the brightness of the LED group of LED light module 10 also correspondingly changes, thus user can be finely tuned the brightness of LED group, or Serial regulation.
Because this LED mixes colours in control circuit, in LED group, the colour temperature of one or more LED every is different, therefore, this LED toning control circuit can be applied as the overall colour temperature controlling LED light module 10, after the application of above-mentioned technology, make this LED toning control circuit not only have the effect of the colour temperature controlling LED group, can finely tune the brightness of LED group simultaneously.
In the preferred embodiment, LED control module 20 includes a single-chip microcomputer 21, and driver module 30 then includes IC chip 31.The control signal end of above-mentioned LED control module 20 is an I/O port (being 2 pin of single-chip microcomputer 21 in Fig. 1) of this single-chip microcomputer 21, single-chip microcomputer 21 outwards exports control signal by this I/O port, and this control signal is produced by user's pair control that the switch on wall be connected with this single-chip microcomputer 21 carries out.In order to judge the operation of user to switch on wall like clockwork, LED control module 20 includes city's power detection circuit 22, being connected with the vdd terminal of single-chip microcomputer 21, for detecting the variable condition of switch on wall, carrying out the instruction that each I/O port of control single chip computer 21 sends thus.Consult the driver module 30 in Fig. 1, in this embodiment, driver module 30 includes IC chip 31, the MULT pin (being 3 pin of IC chip 31 in Fig. 1) of this IC chip 31 is above-mentioned voltage controling end, and current output terminal is the FB pin (being 4 pin of IC chip 31 in Fig. 1) of this IC chip 31.The configuration of single-chip microcomputer 21 and IC chip 31, makes both compatibility good, and the control signal that I/O port (being 2 pin of single-chip microcomputer 21 in accompanying drawing) exports is sent to the MULT pin (being 3 pin of IC chip 31 in accompanying drawing) of IC chip 31.Simultaneously, consult Fig. 3, for driver module 30 voltage controling end in the utility model one preferred embodiment, the i.e. curve characteristic schematic diagram of MULT pin, visible according to this schematic diagram, when the voltage of MULT pin changes in the scope of 0-1v, the current output terminal of driver module 30, the i.e. FB pin (being 4 pin in accompanying drawing) of IC chip 31, voltage variety be directly proportional to the voltage variety of MULT pin, namely the voltage of FB pin and the voltage of MULT pin are linear change, when both linear change, change in voltage by FB pin controls the watt level exporting LED group to, thus control the brightness of LED group.
In order to ensure that single-chip microcomputer 21 normally works, LED control module 20 also includes the discharge loop that a diode D1 and electric capacity C1 is formed, and this discharge loop plays the effect of single-chip microcomputer 21 storage battery, closes have no progeny to avoid switch on wall, the phenomenon of the quick power down of single-chip microcomputer 21.The discharge loop consisted of diode D1 and electric capacity C1 can allow this discharge loop power to single-chip microcomputer 21, and to avoid the situation that cannot realize electric power storage state to occur, if this situation occurs, single-chip microcomputer 21 can cannot normal power supply and cutting out due to electricity.
Connection between above-mentioned single-chip microcomputer 21 and IC chip 31 is to control on the basis of the brightness of LED group, and LED toning control circuit also includes a sampling resistor unit 40, and it is connected between driver module 30 and LED light module 10.The resistance of this sampling resistor unit 40 is adjustable, changes the size of operating currents at 4 pin places of current output terminal and IC chip 31.Particularly, sampling resistor unit 40 comprises the first resistance R1, the second resistance R2, the 3rd resistance R3 and switching tube Q1; First resistance R1 and the second resistance R2 is parallel between the FB pin of IC chip 31 and LED light module 10; Described 3rd resistance R3 is connected to the FB pin of IC chip 31 and the inter-collector of switching tube Q1; The base stage of switching tube Q1 is connected with an I/O port (being 7 pin of single-chip microcomputer 21 in accompanying drawing) of single-chip microcomputer 21; The emitter of switching tube Q1 is in parallel with the first resistance R1 and the second resistance R2, thus the 3rd resistance R3 is configured in parallel with the first resistance R1 and the second resistance R2 alternatively.During normal work, the I/O port (7 pin) of single-chip microcomputer 21 sends a command signal to switching tube Q1, with the state of the conducting of control switch pipe Q1 or cut-off.When switching tube Q1 conducting, the resistance of this sampling resistor unit 40
and when switching tube Q1 ends, the resistance of this sampling resistor
and the I/O port that the control signal controlling the conducting of this switching tube Q1 or the state of cut-off triggers single-chip microcomputer 21 by the triggering signal of switch on wall changes, concrete control method will be explained below.
In the preferred embodiment, can be to the resistance size configure of the first resistance R1, the second resistance R2 and the 3rd resistance R3: the first resistance R1 is equal with the resistance of the second resistance R2, and the resistance of the 3rd resistance R3 be the resistance of the second resistance R2 or the first resistance R1
.If make the resistance of the first resistance R1 and the second resistance R2 in the preferred embodiment be 2r, the resistance of the 3rd resistance R3 is r, then when switching tube Q1 conducting, and the resistance of sampling resistor unit 40
and when switching tube Q1 ends, the resistance of sampling resistor unit 40
then R '=2*R, thus when switching tube Q1 is ended, when the total current I ' of inflow LED light module 10 is for switching tube Q1 conducting, flow into 2 times of the total current I of LED light module 10.In one embodiment, LED light module 10 includes the first LED chip group 11 and the second LED chip group 12, and make when the first LED chip group 11 or the second LED chip group 12 select a luminescence, the operating current size that LED light module 10 receives is I1; And order is when the first LED chip group 11 and the second LED chip group 12 are simultaneously luminous, the electric current of LED light module 10 is I2.Now when the first LED chip group 11 or the second LED chip group 12 select a luminescence, controllable switch pipe Q1 turns off, the electric current I 1 then flowing into LED light module 10 is controlled by the resistance R ' of sampling resistor unit 40, when the first LED chip group 11 and the luminescence simultaneously of the second LED chip group 12, controllable switch pipe Q1 conducting, then the electric current I 2 flowing into LED light module 10 is controlled by the resistance R of sampling resistor unit 40, due to R ' as the aforementioned=2*R, therefore, I2=2*I1.Such as, when the colour temperature of the first LED chip group 11 is 5700K, when the colour temperature of the second LED chip group 12 is 2700K, when the first LED chip group 11 and the second LED chip group 12 are simultaneously luminous, the colour temperature of whole LED group is 4000K, and now operating current is 300mA; And when the first LED chip group 11 or the second LED chip group 12 select a luminescence, the colour temperature of whole LED group is 5700K or 2700K, and now operating current is 150mA.Under above-mentioned configuration, when the first LED chip group 11 and the second LED chip group 12 are simultaneously luminous, the brightness of LED illuminating module be the first LED chip group 11 or the second LED chip group 12 select one luminous time twice, now in conjunction with the control of single-chip microcomputer 21 with IC chip 31 pairs of operating current sizes, then user can regulate the brightness of each LED chip group neatly, at random, and the degree of freedom is larger.
In above-mentioned any embodiment, driver module 30 is chosen for and comprises IC chip 31, LED control module 20 is chosen for and comprises single-chip microcomputer 21 and be only a preferably execution mode, it will be understood by those skilled in the art that, the function of IC chip 31 this single-chip microcomputer 21 all alternative of exportable voltage control signal, other have the changeable electronic component of a pin voltage this IC chip 31 as driver module 30 all alternative simultaneously, in this embodiment not to restriction of the present utility model, only do the explanation of preferred embodiment.
In order to give driver module 30 and LED control module 20 continued power, LED toning control circuit also includes a voltage-multiplying circuit 50.This voltage-multiplying circuit 50 is connected with driver module 30, powers to driver module 30.Because the mix colours startup of control circuit of whole LED is powered and to be powered by quick starting resistance, and start at driver module 30 and LED control module 20 and after normal work, just powered by this voltage-multiplying circuit 50.The voltage of this voltage-multiplying circuit 50 power supply is decided by the voltage of output loading and LED light module 10, in order to avoid causing supply power voltage too low due to output voltage conversion in output LED colour temperature handoff procedure, and the phenomenon causing LED to dodge, a voltage-multiplying circuit 50 is designed especially, to guarantee supply to the voltage stabilization of the LED group of LED light module 10 at this.If the voltage of LED group is identical, or excursion is minimum, can Fig. 4 be consulted, make it be reduced to a resistance R4 and diode D2 and connect.
Coordinate with this voltage-multiplying circuit 50, between driver module 30 and LED illuminating module, be also provided with a metal-oxide-semiconductor 32, and control conducting and the cut-off of this metal-oxide-semiconductor 32 to the operating current that LED light module 10 exports by driver module 30.Particularly, in this embodiment, metal-oxide-semiconductor 32 is connected with the GD pin (being 7 pin in accompanying drawing) of IC chip 31, when the change in voltage of the MULT pin (being 3 pin in accompanying drawing) of IC chip 31, the operating frequency response of metal-oxide-semiconductor 32 changes, thus the output valve of adjustment operating current.Simultaneously, due to the change of the operating frequency of metal-oxide-semiconductor 32, if the voltage 1 pin of IC chip 31 (in accompanying drawing for) that voltage-multiplying circuit 50 is provided to driver module 30 and the voltage of the voltage controling end of driver module 30 do not mate when cannot be consistent, metal-oxide-semiconductor 32 controls operating current cannot conducting, until after compensating and being provided to the voltage matches of driver module 30 to the voltage of this voltage controling end and voltage-multiplying circuit 50, metal-oxide-semiconductor 32 just can conducting.
In order to tackle the requirement of great power LED load for power factor, in a preferred embodiment, LED toning control circuit also includes one and fills out paddy circuit, and this is filled out paddy circuit and is connected with LED control module 20.Consult Fig. 2 and Fig. 5, be respectively the LED toning control circuit schematic diagram for great power LED load and the circuit diagram filling out paddy circuit.Particularly, fill out after paddy circuit is arranged on LED control module 20 pairs of current commutates, to improve power factor.
In above-mentioned any embodiment, the control signal that LED control module 20 is sent to driver module 30 can be low and high level signal or PWM modulation signal.PWM modulation signal is according to PWM amplitude modulation, and its degree of regulation is higher.And adjust frequency and the amplitude of low and high level signal, the voltage of the voltage controling end of driver module 30 can be changed equally.
User, for while carrying out brightness change to LED group, also can walk abreast to the adjustment of the colour temperature of LED group and carry out.Specifically, the switch of switch on wall is detected and conducting comes to single-chip microcomputer 21 triggering signal by city's power detection circuit 22, after receiving this triggering signal, this signal is just carried out AD conversion by single-chip microcomputer 21, different low and high level states is exported to make two of single-chip microcomputer 21 I/O ports (being 5,6 pin in accompanying drawing), to reach the effect of the switch controlling the NPN triode 13 be connected with different-colour LED, the effect switching colour temperature so just can be realized.Also control by operation another I/O port (being 7 pin in accompanying drawing) to single-chip microcomputer 21 of switch on wall simultaneously, with the state of the conducting of control switch pipe Q1 or cut-off, thus control the resistance size of sampling resistor unit 40, further the brightness of operating current and even LED light module 10 is regulated.
Should be noted that, embodiment of the present utility model has preferably implementation, and not any type of restriction is done to the utility model, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solutions of the utility model is not departed from, the any amendment done above embodiment according to technical spirit of the present utility model or equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (14)
1. a LED toning control circuit, comprises LED light module, LED control module, driver module;
Described LED light module comprises LED group, and described LED control module controls described LED group according to the state of switch on wall;
Described driver module is connected with described LED light module, by a current output terminal of described driver module to its output services electric current, it is characterized in that:
Described LED control module comprises a control signal output, and described driver module comprises a voltage controling end;
Described control signal output is connected with described voltage controling end;
When the state variation of described switch on wall, described control signal output sends a voltage control signal to described voltage controling end,
The voltage of described voltage controling end increases according to described voltage control signal or reduces, linearly to increase or to reduce the size of the operating current that described driver module exports to described LED light module.
2. LED toning control circuit as claimed in claim 1, is characterized in that:
Described LED control module comprises single-chip microcomputer, and described driver module comprises IC chip;
Described control signal output is an I/O port of described single-chip microcomputer;
Described voltage controling end is the MULT pin of described IC chip;
The current output terminal of described driver module is the FB pin of described IC chip.
3. LED toning control circuit as claimed in claim 2, is characterized in that:
Described LED control module also comprises city's power detection circuit, and it is connected with the vdd terminal of described single-chip microcomputer.
4. LED toning control circuit as claimed in claim 2, is characterized in that:
The voltage of described MULT pin is 0-1V.
5. LED toning control circuit as claimed in claim 2, is characterized in that:
Described LED control module also comprises a diode D1 and electric capacity C1, is connected to an I/O port of described single-chip microcomputer.
6. LED toning control circuit as claimed in claim 1, is characterized in that:
Described LED toning control circuit also comprises sampling resistor unit, is connected between described driver module and LED light module.
7. LED toning control circuit as claimed in claim 6, is characterized in that:
Described sampling resistor unit comprises the first resistance R1, the second resistance R2, the 3rd resistance R3 and switching tube Q1;
Described first resistance R1 and the second resistance R2 is parallel between described driver module and LED light module;
Described 3rd resistance R3 is connected to the inter-collector of described driver module and described switching tube Q1;
The base stage of described switching tube Q1 is connected with described LED control module;
The emitter of described switching tube Q1 is in parallel with described first resistance R1 and the second resistance R2.
8. LED toning control circuit as claimed in claim 7, is characterized in that:
Described first resistance R1 is equal with the resistance of the second resistance R2;
The resistance of described 3rd resistance R3 is the resistance of described second resistance R2
When described switching tube Q1 conducting, the resistance of described sampling resistor unit is R;
When described switching tube Q1 turns off, the resistance of described sampling resistor unit is R ';
Wherein R '=2*R.
9. LED toning control circuit as claimed in claim 8, is characterized in that:
Described LED light module comprises the first LED chip group and the second LED chip group;
When described first LED chip group or the luminescence of the second LED chip group, the electric current of described LED light module is I1;
When described first LED chip group and the luminescence of the second LED chip group, the electric current of described LED light module is I2;
Wherein I2=2*I1.
10. LED toning control circuit as claimed in claim 9, is characterized in that:
The colour temperature of described first LED chip group is 5700K;
The colour temperature of described second LED chip group is 2700K.
11. LED toning control circuits as claimed in claim 1, is characterized in that:
Described LED toning control circuit also comprises voltage-multiplying circuit;
Described voltage-multiplying circuit is connected with described driver module, powers to described driver module.
12. LED light modulation toning circuit as claimed in claim 1, is characterized in that:
Also be provided with a metal-oxide-semiconductor between described driver module and described LED illuminating module, controlled conducting and the cut-off of described metal-oxide-semiconductor by described driver module to the operating current that described LED illuminating module exports.
13. LED light modulation toning circuit as claimed in claim 1, is characterized in that:
Described LED toning control circuit also comprises fills out paddy circuit;
Described paddy circuit of filling out is connected with described LED control module.
14. LED toning control circuits as claimed in claim 1, is characterized in that:
Described voltage control signal is PWM modulation signal or low and high level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460139.XU CN204046879U (en) | 2014-08-14 | 2014-08-14 | A kind of LED toning control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460139.XU CN204046879U (en) | 2014-08-14 | 2014-08-14 | A kind of LED toning control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204046879U true CN204046879U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460139.XU Expired - Fee Related CN204046879U (en) | 2014-08-14 | 2014-08-14 | A kind of LED toning control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104582189A (en) * | 2015-01-15 | 2015-04-29 | 魏泽科 | Intelligent light dimming and color adjusting LED isolation drive circuit |
| CN105338689A (en) * | 2014-08-14 | 2016-02-17 | 欧普照明股份有限公司 | LED color modulation control circuit |
-
2014
- 2014-08-14 CN CN201420460139.XU patent/CN204046879U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338689A (en) * | 2014-08-14 | 2016-02-17 | 欧普照明股份有限公司 | LED color modulation control circuit |
| CN105338689B (en) * | 2014-08-14 | 2018-07-24 | 欧普照明股份有限公司 | A kind of LED tonings control circuit |
| CN104582189A (en) * | 2015-01-15 | 2015-04-29 | 魏泽科 | Intelligent light dimming and color adjusting LED isolation drive circuit |
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