CN203120222U - Current adjusting control capacitance-resistance driving LED lamp circuit - Google Patents
Current adjusting control capacitance-resistance driving LED lamp circuit Download PDFInfo
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- CN203120222U CN203120222U CN 201220723942 CN201220723942U CN203120222U CN 203120222 U CN203120222 U CN 203120222U CN 201220723942 CN201220723942 CN 201220723942 CN 201220723942 U CN201220723942 U CN 201220723942U CN 203120222 U CN203120222 U CN 203120222U
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Abstract
The utility model relates to a current adjusting control capacitance-resistance driving LED lamp circuit. The current adjusting control capacitance-resistance driving LED lamp circuit comprises an LED lamp circuit unit and a capacitance-resistance pressure reduction driving circuit unit which is connected with alternating current and generates direct current voltage demanded by the LED lamp circuit unit, and further comprises a current adjusting control branch circuit, wherein the LED lamp circuit unit is connected with an output end of the capacitance-resistance pressure reduction driving circuit unit, the current adjusting control branch circuit is connected in parallel with the LED lamp circuit unit. When input alternating current voltage rises to a certain value, the current adjusting control branch circuit is controlled for conduction shunting. The current adjusting control capacitance-resistance driving LED lamp circuit has properties of simple structure, low cost and high electric efficiency, has stability and reliability respectively meeting practical requirements according to practical continuous switch tests and high low voltage application experiments, can be applied to various types of lamps and is applicable to various types of small power LED lamps such as ceiling lamps, cylinder lamps, bulbs, small night lamps, small bench lamps, mirror-front lamps and cabinet lamps.
Description
Technical field
The utility model relates to electronic circuit, and particularly a kind of current regulation control capacitance-resistance driving LED circuit for lamp, this circuit adopt common capacitance-resistance drive circuit parallel-current to regulate the current regulation control capacitance-resistance driving LED circuit for lamp that the control branch road forms a kind of current stabilization.
Background technology
In the LED lighting technical field, at present, led drive circuit mainly contains two kinds, and a kind of is the constant current switch power supply, and another kind is the resistance-capacitance depressurization drive circuit.
Led drive circuit adopts the constant current switch power supply, can guarantee that LED does not shorten and damages because current overload causes the LED life-span.The LED Driving technique of constant current switch power supply is comparative maturity, be used for the constant current switch power supply the IC circuit application also more and more widely.But, since the circuit more complicated of constant current switch power supply, constant current IC circuit having relatively high expectations to operational environment, and be operated in the high-frequency impulse state, its stability and reliability are all unlike LED element itself, and therefore, the long-life advantage of LED is had a greatly reduced quality in this link of constant current switch power supply.The fault majority of LED product is because the cause for quality of constant current switch power supply causes at present.Secondly, the load of constant current switch power supply can only be single led series arm, to the LED circuit for lamp of multiple branch circuit parallel connection, require every branch road all to design independent constant current switch power supply, otherwise, when one or more branch road in the multiple branch circuit LED circuit for lamp is opened a way, the corresponding increase of electric current meeting of residue branch road forms avalanche effect, and the whole LED circuit for lamp can accelerate to damage, and adopt a plurality of constant current switch power drives multiple branch circuit LED circuit for lamp certainly will increase cost, also bring difficulty to structural design simultaneously.
Traditional resistance-capacitance depressurization drive circuit itself does not possess voltage stabilizing and constant current function, and simple application is easy to cause LED overvoltage, overcurrent in the LED load and causes the LED lost of life even damage; Secondly, the resistance-capacitance depressurization drive circuit is frequent when switch activated, life-span even the damage of LED seriously shortened in the spike meeting that produces because of capacitor charge and discharge, above-mentioned resistance-capacitance depressurization drive circuit defective, more outstanding in the low-voltage load situation, directly influence it in popularization and the application of LED applied technical field.
From advantage, the resistance-capacitance depressurization drive circuit can drive the LED series circuit of long string, and the LED series circuit operating current of long string is little, can effectively improve circuit reliability and stability, reduce circuit power consumption and cost, secondly, resistance-capacitance depressurization drive circuit load characteristic is capacitive, play the power factor compensation effect at network transformer load end, can alleviate the compensation intensity of capacitor box, reduce the power network line loss.How bringing into play resistance-capacitance depressurization drive circuit advantage, overcome its unfavorable factor, maximize favourable factors and minimize unfavourable ones, is exploitation resistance-capacitance depressurization drive circuit key in application.The inventor is research and the advocate of resistance-capacitance depressurization led drive circuit, and application once or tissue were applied for multinomial relevant patent, and were used widely in practice.
The utility model is attempted further expanding the resistance-capacitance depressurization drive circuit in the range of application of LED lighting field, to solve the over-voltage and over-current problem of resistance-capacitance depressurization drive circuit in the LED application circuit, improve its anti-switch spike pulse pressure impact characteristics, be expected to popularize in the LED application.
The utility model content
The utility model technical issues that need to address are, how to bring into play resistance-capacitance depressurization drive circuit advantage, overcome its unfavorable factor, particularly when low-voltage load, a kind of simple in structure, cost is low, reliability is better, relative efficiency is higher resistance-capacitance depressurization led drive circuit is provided, can especially in the low-power LED product, effectively replaces the constant current switch power drives at the LED product.
Technical solution of the present utility model is: make up a kind of current regulation control capacitance-resistance driving LED circuit for lamp, comprise LED circuit for lamp unit, link to each other with alternating current and to produce the resistance-capacitance depressurization drive circuit unit of the required direct voltage in described LED circuit for lamp unit, described LED circuit for lamp unit inserts the output of described resistance-capacitance depressurization drive circuit unit, also comprise the current regulation control branch road, described current regulation control branch road is in parallel with described LED circuit for lamp unit, when input ac voltage is elevated to certain value, the controlled conducting shunting of described current regulation control branch road.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: also comprise current-limiting resistance R3, described current-limiting resistance R3 is connected between the negative pole of described LED circuit for lamp unit and resistance-capacitance depressurization drive circuit unit.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: described current regulation control branch road comprises shunting load resistance R5 and current-limiting resistance R3, R4, flow-dividing control switch triode VT1, described shunting load resistance R5 is connected between the positive pole of the collector electrode of described flow-dividing control switch triode VT1 and described resistance-capacitance depressurization drive circuit unit, the grounded emitter of flow-dividing control switch triode VT1, base stage connects current-limiting resistance R3 and junction, described LED circuit for lamp unit by current-limiting resistance R4.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: described current regulation control branch road comprises shunting load resistance R5, current-limiting resistance R4 and divider resistance R6, R7 and flow-dividing control switch triode VT1, described divider resistance R6 and divider resistance R7 just are being connected described resistance-capacitance depressurization drive circuit unit, between the negative pole, described shunting load resistance R5 is connected between the positive pole of the collector electrode of described flow-dividing control switch triode VT1 and described resistance-capacitance depressurization drive circuit unit, the grounded emitter of flow-dividing control switch triode VT1, base stage connects in the middle of described divider resistance R6 and the divider resistance R7 polyphone connecting circuit by current-limiting resistance R4.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: described current regulation control branch road comprises current-limiting resistance R4, divider resistance R6, R7 and controllable silicon SCR 1, described divider resistance R6 and R7 just are being connected described resistance-capacitance depressurization drive circuit unit, negative pole, described controllable silicon SCR 1 anode and negative electrode are just connecing described resistance-capacitance depressurization drive circuit unit respectively, negative pole, the control utmost point of described controllable silicon SCR 1 connects in the middle of described divider resistance R6 and the circuit that divider resistance R7 is connected by described shunting load resistance R5.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: described divider resistance R6 is photo resistance.
The current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model: also comprise voltage stabilizing didoe VS1, described voltage stabilizing didoe VS1 is in parallel with described LED circuit for lamp unit.
The described resistance-capacitance depressurization drive circuit unit of current regulation control capacitance-resistance driving LED circuit for lamp that provides according to the utility model comprises reduction voltage circuit, rectification circuit and filter circuit;
Described reduction voltage circuit is connected between alternating current and the rectification circuit, comprises dropping resistor R1 and decompression capacitor C1 in parallel;
Described rectification circuit is connected between reduction voltage circuit and the filter circuit, comprises the bridge rectifier of being made up of rectifier diode VD1, VD2, VD3, VD4;
Described filter circuit is arranged between rectification circuit and the power output end, comprises commutation capacitor C2 and dead resistance R2 in parallel.
The current regulation control capacitance-resistance driving LED circuit for lamp that the utility model is above, its beneficial effect is: the current regulation control branch road is provided, by adopting the high pressure shunting and eliminating the spike impact technology, make the resistance-capacitance depressurization drive circuit unit can be applied in low-voltage, low-power LED circuit for lamp effectively, current stability with effective raising led circuit, reduce circuit cost, for the LED application technology is introduced convenient reliable, the economically viable technical scheme of a cover.
Description of drawings
Further the utility model is elaborated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the basic electric theory diagram of the utility model optimal technical scheme;
Fig. 2 is embodiment 1 circuit theory diagrams of the utility model optimal technical scheme;
Fig. 3 is embodiment 2 circuit theory diagrams of the utility model optimal technical scheme;
Fig. 4 is preferred embodiment 3 circuit theory diagrams of technical solutions of the utility model;
The component names of figure notation representative is as follows in the accompanying drawing:
01---the resistance-capacitance depressurization drive circuit unit
02---LED circuit for lamp unit
03---the current regulation control branch road
AC---AC power
Ctrl in---the control input end of current regulation control branch road
Embodiment
As shown in Figure 1, the utility model circuit comprises resistance-capacitance depressurization drive circuit unit 01 and the LED circuit for lamp unit 02 of mutual series connection, and the current regulation control branch road 03 in parallel with LED circuit for lamp unit 02.
Current regulation control branch road 03 is the key technology of the utility model innovation, one of its effect is, when circuit input ac power AC voltage is elevated to certain value (reaching more than the 15V such as surpassing 220V), control input end Ctrl in sampling control current regulation control branch road 03 conducting shunting by this circuit, to increase the load current of resistance-capacitance depressurization drive circuit unit 01, and then the resistance-capacitance depressurization value is raise, sharing more power supply boosts, to reduce the voltage and current of LED circuit for lamp unit 02, reach the purpose of adjusting and stable LED electric current.Same principle can draw, and another effect of current regulation control branch road 03 is, can effectively eliminate or weaken because the frequent switch of power supply causes the spike shock pulse that capacitor charge and discharge produces, with effective protection LED.
When the light-operated grade of the control input end of above-mentioned current regulation control branch road 03 Ctrl in connection intelligence control circuit, the current regulation control branch road can be according to the needs of Based Intelligent Control (when daytime, ambient light illumination be strong, the LED lamp is extinguished) LED circuit for lamp unit 02 voltage is reduced even short circuit, with the unit 02 not conducting of control LED circuit for lamp, reach the Based Intelligent Control purpose, and as long as resistance-capacitance depressurization drive circuit unit 01 withstand voltage enough, even LED circuit for lamp unit 02 is by short circuit, voltage is all born by resistance-capacitance depressurization drive circuit unit 01, meritorious power consumption also can be very little, and because the capacitive reactances characteristic of resistance-capacitance depressurization drive circuit unit 01, in electrical network, can share the power factor compensation effect of capacitor box, kill two birds with one stone.
In addition, LED circuit for lamp of the present utility model unit 02 can be any LED unit on the present market, what use was more at present is the LED circuit for lamp unit of a kind of N * M, be exactly by N LED lamp polyphone, then the LED lamp of M such polyphone is formed the unit of a N * M LED lamp, the resistance-capacitance depressurization drive circuit unit adopts more common, simple resistance-capacitance depressurization drive circuit.This circuit mainly is made up of reduction voltage circuit, rectification circuit and three parts of filter circuit, output dc voltage conforms to just passable with the LED lamp required voltage N * 3.5V of N polyphone, be that a simple resistance-capacitance depressurization drive circuit comprises reduction voltage circuit, rectification circuit and filter circuit as shown in fig. 1;
Reduction voltage circuit is connected between alternating current and the rectification circuit, comprises dropping resistor R1 and decompression capacitor C1 in parallel;
Rectification circuit is connected between reduction voltage circuit and the filter circuit, comprises the bridge rectifier of being made up of rectifier diode VD1, VD2, VD3, VD4;
Filter circuit is arranged between rectification circuit and the power output end, comprises commutation capacitor C2 and dead resistance R2 in parallel.
The protective circuit that can also add other LED in drive circuit of the present utility model is as polyphone current-limiting resistance R3, parallel voltage-stabilizing diode VS1 in the LED unit.
Particularly, for ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing and preferred embodiment scheme principle of the present utility model and design feature are described further.
One, embodiment 1:
Be the embodiment circuit theory diagrams of the utility model optimal technical scheme as shown in Figure 2.
In Fig. 2, C1 and R1 form the resistance-capacitance depressurization circuit, and VD1-4 forms bridge rectifier, and C2 and R2 form filter circuit, more than are combined to form resistance-capacitance depressurization drive circuit unit 01, just a resistance-capacitance depressurization drive circuit unit; N LED (VL1-VLN) lamp string is in parallel with above-mentioned filter circuit as the drive circuit load, voltage stabilizing didoe VS1 and the connection in series-parallel of LED lamp, play voltage stabilizing and metering function (voltage stabilizing value and the power of considering voltage stabilizing didoe are all smaller, and is in parallel with single voltage stabilizing didoe respectively again after LED lamp string can being divided into groups); Current-limiting resistance R4, shunting load resistance R5 and flow-dividing control switch triode VT1 form current regulation control branch road 03.Current-limiting resistance R3 is on the one hand as the current-limiting resistance of LED lamp string, on the other hand as the sample resistance of Ctrl in control input end in the current regulation control branch road.
The circuit working process of present embodiment is as follows:
In Fig. 2, when AC power is imported AC voltage in normal value (not being higher than 235V as civil power), select suitable R 3, R4, it is zero that the R5 resistance makes the average current myopia that flows through R5, when input AC voltage is elevated to certain value (reaching more than the 15V as surpassing 220V), the electric current that flows through LED increases, voltage on the R3 raises, VT1 begins conducting, the average current that flows through R5 progressively strengthens along with AC voltage raises, and flows through the electric current of decompression capacitor C1 also along with increase, and the voltage U c=I/2 π fC at C1 two ends is also along with increase, the corresponding reduction of voltage at LED lamp string two ends, voltage on the R3 reduces, and regulates through VT1, finally makes the electric current that flows through LED reach balance.
In the present embodiment, though that the electric current of LED can not be accomplished is very constant, as long as each component parameters of design makes circuit input AC voltage when 250V is following, the average current of LED just can guarantee the normal useful life of LED within its safe range.
Two, embodiment 2:
As shown in Figure 3, its operation principle and embodiment 1 are identical, and unique difference is, in the present embodiment, control input end in the current regulation control branch road (Ctrl in) is connected with the resistor voltage divider circuit that divider resistance R6, R7 form, and its circuit theory is apparent, no longer repeats at this.
Three, embodiment 3:
Fig. 4 is the utility model embodiment 3 circuit theory diagrams.Compare with embodiment 2 with embodiment 1; the main distinction is the current regulation control branch road; the current regulation control branch road of present embodiment not only can be regulated the electric current of LED circuit for lamp unit 02; LED in the LED circuit for lamp unit 02 is carried out current-limiting protection; whether the LED lamp that can control automatically in the LED circuit for lamp unit 02 simultaneously brightens, and is a kind of intelligent light-controlled LED circuit for lamp.
Fig. 4 is after some functional changes are done on the basis of embodiment 3, becomes a simple intelligent light-controlled LED circuit for lamp.Adopt photo resistance RL1 to replace divider resistance R6, adopt controllable silicon SCR 1 place of switches triode VT1, omitted the current-limiting resistance R5 as collector resistance.
As shown in Figure 4, divider resistance R7 and photo resistance RL1 composition bleeder circuit provides biasing for the control utmost point of controllable silicon SCR 1.When ambient light illumination was dark, photo resistance RL1 presented big resistance, and the controllable silicon SCR 1 control utmost point is in and ends because can not get enough gate voltages, and the LED lamp is normally lighted; When ambient light illumination brightens, photo resistance RL1 presents less resistance, controllable silicon SCR 1 conducting, the LED lamp does not work because of short circuit, and at this moment, circuit input AC voltage all is added on resistance-capacitance depressurization (C1, R1) and the bridge rectifier VD1-4 circuit, because the capacitive reactances characteristic of dividing potential drop C1, this moment, the meritorious power consumption of entire circuit was very little, and capacitive load can also share the power factor compensation effect of capacitor box in electrical network, kill two birds with one stone.
In the present embodiment, select suitable R 7 parameters, can control the light sensation intensity of light-operated switch and provide controllable silicon SCR 1 to be transferred to by required zero passage gate voltage by conducting.
Four, embodiment 4
Present embodiment is a kind of current regulation control capacitance-resistance driving LED circuit for lamp of a kind of embodiment of combination 1 and embodiment 3, the main circuit structure comprises resistance-capacitance depressurization drive circuit unit 01 and the LED circuit for lamp unit 02 of mutual series connection, and the current regulation control branch road 03 in parallel with LED circuit for lamp unit 02, wherein, current regulation control branch road 03, formed by two parts, wherein a part is the current regulation control branch road among the embodiment 1, another part is the Current Control branch road of embodiment 3, and two branch roads compose in parallel new current regulation control branch road 03.
Need to prove that protection range of the present utility model is not limited to described embodiment; do not breaking away under the utility model design concept prerequisite; small change on any apparent replacement or the circuit (as changing transistor into positive-negative-positive by the NPN type or replacing with other switch element such as controllable silicon) or change and modify according to the equalization that the utility model claim scope is done all belongs within the utility model protection range.
Claims (10)
1. current regulation control capacitance-resistance driving LED circuit for lamp, comprise LED circuit for lamp unit, linking to each other with alternating current produces the resistance-capacitance depressurization drive circuit unit of the required direct voltage in described LED circuit for lamp unit, described LED circuit for lamp unit inserts the output of described resistance-capacitance depressurization drive circuit unit, it is characterized in that: also comprise the current regulation control branch road, described current regulation control branch road is in parallel with described LED circuit for lamp unit, when input ac voltage is elevated to certain value, the controlled conducting shunting of described current regulation control branch road.
2. according to the described current regulation control capacitance-resistance of claim 1 driving LED circuit for lamp, it is characterized in that: also comprise current-limiting resistance R3, described current-limiting resistance R3 is connected between the negative pole of described LED circuit for lamp unit and resistance-capacitance depressurization drive circuit unit.
3. according to the described current regulation control capacitance-resistance of claim 2 driving LED circuit for lamp, it is characterized in that: described current regulation control branch road comprises shunting load resistance R5 and current-limiting resistance R3, R4, flow-dividing control switch triode VT1, described shunting load resistance R5 is connected between the positive pole of the collector electrode of described flow-dividing control switch triode VT1 and described resistance-capacitance depressurization drive circuit unit, the grounded emitter of flow-dividing control switch triode VT1, base stage connects current-limiting resistance R3 and junction, described LED circuit for lamp unit by current-limiting resistance R4.
4. according to the described current regulation control capacitance-resistance of claim 1 driving LED circuit for lamp, it is characterized in that: described current regulation control branch road comprises shunting load resistance R5, current-limiting resistance R4 and divider resistance R6, R7 and flow-dividing control switch triode VT1, described divider resistance R6 and divider resistance R7 just are being connected described resistance-capacitance depressurization drive circuit unit, between the negative pole, described shunting load resistance R5 is connected between the positive pole of the collector electrode of described flow-dividing control switch triode VT1 and described resistance-capacitance depressurization drive circuit unit, the grounded emitter of flow-dividing control switch triode VT1, base stage connects in the middle of described divider resistance R6 and the divider resistance R7 polyphone connecting circuit by current-limiting resistance R4.
5. according to the described current regulation control capacitance-resistance of claim 3 driving LED circuit for lamp, it is characterized in that: described current regulation control branch road comprises current-limiting resistance R4, divider resistance R6, R7 and controllable silicon SCR 1, described divider resistance R6 and R7 just are being connected described resistance-capacitance depressurization drive circuit unit, negative pole, described controllable silicon SCR 1 anode and negative electrode are just connecing described resistance-capacitance depressurization drive circuit unit respectively, negative pole, the control utmost point of described controllable silicon SCR 1 connects in the middle of described divider resistance R6 and the circuit that divider resistance R7 is connected by described shunting load resistance R5.
6. according to claim 4 or 5 described current regulation control capacitance-resistance driving LED circuit for lamp, it is characterized in that: described divider resistance R6 is photo resistance.
7. according to the arbitrary described current regulation control capacitance-resistance driving LED circuit for lamp of claim 1 to 5, it is characterized in that: also comprise voltage stabilizing didoe VS1, described voltage stabilizing didoe VS1 is in parallel with described LED circuit for lamp unit.
8. according to the described current regulation control capacitance-resistance of claim 6 driving LED circuit for lamp, it is characterized in that: also comprise voltage stabilizing didoe VS1, described voltage stabilizing didoe VS1 is in parallel with described LED circuit for lamp unit.
9. according to the described current regulation control capacitance-resistance of claim 7 driving LED circuit for lamp, it is characterized in that: described resistance-capacitance depressurization drive circuit unit comprises reduction voltage circuit, rectification circuit and filter circuit;
Described reduction voltage circuit is connected between alternating current and the rectification circuit, comprises dropping resistor R1 and decompression capacitor C1 in parallel;
Described rectification circuit is connected between reduction voltage circuit and the filter circuit, comprises the bridge rectifier of being made up of rectifier diode VD1, VD2, VD3, VD4;
Described filter circuit is arranged between rectification circuit and the power output end, comprises commutation capacitor C2 and dead resistance R2 in parallel.
10. described current regulation control capacitance-resistance driving LED circuit for lamp according to Claim 8, it is characterized in that: described resistance-capacitance depressurization drive circuit unit comprises reduction voltage circuit, rectification circuit and filter circuit;
Described reduction voltage circuit is connected between alternating current and the rectification circuit, comprises dropping resistor R1 and decompression capacitor C1 in parallel;
Described rectification circuit is connected between reduction voltage circuit and the filter circuit, comprises the bridge rectifier of being made up of rectifier diode VD1, VD2, VD3, VD4;
Described filter circuit is arranged between rectification circuit and the power output end, comprises commutation capacitor C2 and dead resistance R2 in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723942 CN203120222U (en) | 2012-12-25 | 2012-12-25 | Current adjusting control capacitance-resistance driving LED lamp circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723942 CN203120222U (en) | 2012-12-25 | 2012-12-25 | Current adjusting control capacitance-resistance driving LED lamp circuit |
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| CN203120222U true CN203120222U (en) | 2013-08-07 |
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| CN 201220723942 Expired - Fee Related CN203120222U (en) | 2012-12-25 | 2012-12-25 | Current adjusting control capacitance-resistance driving LED lamp circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427696A (en) * | 2013-08-28 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Driver heat radiation controller and illumination device |
| CN104582146A (en) * | 2014-12-17 | 2015-04-29 | 深圳市众明半导体照明有限公司 | Led drive circuit |
| CN105407573A (en) * | 2015-12-01 | 2016-03-16 | 上海新进芯微电子有限公司 | Light emitting diode (LED) output control circuit and method, and LED lighting system |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
| CN107396494A (en) * | 2017-07-21 | 2017-11-24 | 佛山杰致信息科技有限公司 | LED stabilized driving circuits |
-
2012
- 2012-12-25 CN CN 201220723942 patent/CN203120222U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427696A (en) * | 2013-08-28 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Driver heat radiation controller and illumination device |
| CN104582146A (en) * | 2014-12-17 | 2015-04-29 | 深圳市众明半导体照明有限公司 | Led drive circuit |
| CN105407573A (en) * | 2015-12-01 | 2016-03-16 | 上海新进芯微电子有限公司 | Light emitting diode (LED) output control circuit and method, and LED lighting system |
| CN105407573B (en) * | 2015-12-01 | 2017-12-12 | 上海新进芯微电子有限公司 | A kind of LED output control circuits, method and LED illumination System |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
| CN107396494A (en) * | 2017-07-21 | 2017-11-24 | 佛山杰致信息科技有限公司 | LED stabilized driving circuits |
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Granted publication date: 20130807 Termination date: 20151225 |
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