CN104602397A - Phase processing based low-pass filtering LED voltage stabilizing system - Google Patents
Phase processing based low-pass filtering LED voltage stabilizing system Download PDFInfo
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- CN104602397A CN104602397A CN201410693405.8A CN201410693405A CN104602397A CN 104602397 A CN104602397 A CN 104602397A CN 201410693405 A CN201410693405 A CN 201410693405A CN 104602397 A CN104602397 A CN 104602397A
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Abstract
The invention discloses a phase processing based low-pass filtering LED voltage stabilizing system. The phase processing based low-pass filtering LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a phase shifting circuit connected with the two-stage low-pass filtering and amplification circuit, a voltage stabilizing circuit connected with the phase shifting circuit and an output circuit connected with the voltage stabilizing circuit. The phase shifting circuit consists of a phase shifting chip U1, an audion VT4, an audion VT5, a resistor R12, a polar capacitor C13 and the like, wherein one end of the resistor R12 is connected with VCC+ tube pin of the phase shifting chip U1, the other end of the resistor R12 is connected with the IN1 tube pin of the phase shifting chip U1, the negative pole of the polar capacitor C12 is connected with the IN1 tube pin of the phase shifting chip U1 through a resistor 13, the positive pole of the polar capacitor C12 is connected with the IN2 tube pin of the phase shifting chip U1. By means of the phase shifting processing circuit, good stability is well ensured while the output power of the LED drive system can be amplified.
Description
Technical field
The present invention relates to a kind of LED information display system, specifically refer to a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing.
Background technology
LED is called as forth generation lighting source or green light source, has the features such as energy-saving and environmental protection, the life-span is long, volume is little, is widely used in the fields such as various instruction, display, decoration, backlight, general lighting and urban landscape.
In megastore or supermarket, in order to reach better illuminating effect, often use a lot of LED, this just has very high requirement to LED drive system simultaneously.The power that current LED information display system exports is not high, can not meet the needs of some large supermarkets at present.
Summary of the invention
The power that the LED information display system that the object of the invention is to overcome exports is not high, can not meet the defect of the needs of some large supermarkets at present, provide a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing of high-power output.
Object of the present invention is achieved through the following technical solutions: a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing, by transforming circuit, the two-stage low-pass filtering amplifying circuit be connected with transforming circuit, the phase-shift circuit be connected with two-stage low-pass filtering amplifying circuit, the voltage stabilizing circuit be connected with phase-shift circuit, and the output circuit be connected with voltage stabilizing circuit forms, described phase shift treatment circuit is by phase shift chip U1, triode VT4, triode VT5, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R12 that the other end is connected with the IN1 pin of phase shift chip U1, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R13, the polar capacitor C12 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R11, the polar capacitor C10 that negative pole is connected with the collector electrode of triode VT4, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C11 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R10 that the other end is connected with the collector electrode of triode VT5, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT4, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D4 that N pole is connected with the emitter of triode VT5 forms, VCC-pin ground connection, the OUT pin of described phase shift chip U1 are connected with the sliding end of potentiometer R10, the emitter of triode VT4 is connected with the base stage of triode VT5, the collector electrode of triode VT5 is connected with two-stage low-pass filtering amplifying circuit, and the negative pole of electric capacity C12 is connected with voltage stabilizing circuit.
Described transforming circuit is by transformer T1, and the former limit circuit being arranged on the former limit of transformer T1 and the secondary circuit being arranged on transformer T1 secondary form; Described former limit circuit is by triode VT1, the resistance R1 that one end is connected with the base stage of triode VT1, the other end is connected with the non-same polarity of transformer T1 former limit inductance coil L3, the resistance C1 that positive pole is connected with the base stage of triode VT1, negative pole is connected with the collector electrode of triode VT1, the diode D1 that P pole is connected with the positive pole of polar capacitor C1, N pole is then connected with the Same Name of Ends of transformer T1 former limit inductance coil L2, negative pole is connected with the Same Name of Ends of transformer T1 former limit inductance coil L1, positive pole forms as the polar capacitor C2 of system one input; The base stage of described triode VT1 is connected with the Same Name of Ends of inductance coil L3 as another input of system, collector electrode, grounded emitter, and the Same Name of Ends of inductance coil L2 is connected with the non-same polarity of inductance coil L1, its non-same polarity is then connected with the Same Name of Ends of inductance coil L3.
The polar capacitor C3 that described secondary circuit is then in parallel by the inductance coil L4 with transformer T1 secondary, the unidirectional thyristor D2 be all in parallel with polar capacitor C3 and resistance R2 forms; Unidirectional thyristor D2 is all connected with two-stage low-pass filtering amplifying circuit with two common ends of resistance R2, the control pole ground connection of unidirectional thyristor D2.
Described two-stage low-pass filtering amplifying circuit is by amplifier P1, amplifier P2, triode VT2, triode VT3, positive pole is connected with the non-same polarity of transformer T1 secondary inductance coil L4, the polar capacitor C4 of minus earth, one end is connected with the normal phase input end of amplifier P1, the resistance R3 that the other end is connected with the positive pole of polar capacitor C4, positive pole is connected with amplifier P1 inverting input after resistance R4, the polar capacitor C5 that negative pole is connected with the negative pole of polar capacitor C4, positive pole is connected with the inverting input of amplifier P1, the polar capacitor C6 that negative pole is connected with the output of amplifier P1, negative pole is connected with the output of amplifier P1, the polar capacitor C7 that positive pole is connected with the base stage of triode VT2, one end is connected with the collector electrode of triode VT2, the resistance R5 that the other end is connected with the emitter of triode VT3, positive pole is connected with the base stage of triode VT3 after resistance R6, the polar capacitor C8 that negative pole is connected with the negative pole of polar capacitor C6 and the Same Name of Ends of transformer T1 secondary inductance coil L4 simultaneously, one end is connected with the negative pole of polar capacitor C8, the resistance R7 that the other end is connected with the inverting input of amplifier P2, the resistance R8 be in parallel with resistance R7, be serially connected in the polar capacitor C9 between the output of amplifier P2 and inverting input, and the resistance R9 be serially connected between the normal phase input end of amplifier P2 and output forms, the emitter of described triode VT2 is connected with polar capacitor C6 negative pole, the collector electrode of triode VT3 is connected with the normal phase input end of amplifier P2, the output of amplifier P2 is connected with the collector electrode of triode VT5, and the positive pole of electric capacity C8 is also connected with the positive pole of amplifier P2.
Described voltage stabilizing circuit is by three terminal regulator U, base stage is connected with the IN pin of this three terminal regulator U, emitter is as system one output, the triode VT6 that collector electrode is then connected with the negative pole of electric capacity C12, diode D5 between the emitter and collector being serially connected in triode VT6, positive pole is connected with the collector electrode of triode VT6 after resistance R14, the polar capacitor C13 that negative pole is connected with the IN pin of three terminal regulator U after polar capacitor C14, N pole is connected with the positive pole of polar capacitor C13, the diode D6 that P pole is connected with the emitter of triode VT6, positive pole is connected with the OUT pin of three terminal regulator U, the polar capacitor C15 that negative pole is connected with the negative pole of polar capacitor C13 forms, the OUT pin of described three terminal regulator U is connected with the P pole of diode D6, GND pin ground connection, and the negative pole of electric capacity C13 is also connected with the negative pole of electric capacity C12.
Described output circuit is made up of inductance L 5, thyristor D7 and resistance R15, described inductance L 5 one end is connected with the emitter of triode VT6, the other end is connected with the negative pole of polar capacitor C15, and thyristor D7 is in parallel with inductance L 5 after connecting with resistance R15 again.
Described phase shift chip U1 is LM741 integrated chip.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) the present invention adopts phase shift treatment circuit, and it can also protect good stability while LED drive system exports high-power amplification.
(2) the present invention adopts two-stage low-pass filtering amplifying circuit, and it can amplify the power output of LED information display system, the demand making system can meet more LED simultaneously to use.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, low-pass filtering LED voltage-stabilizing system based on Phase Processing of the present invention, by transforming circuit, the two-stage low-pass filtering amplifying circuit be connected with transforming circuit, the phase-shift circuit be connected with two-stage low-pass filtering amplifying circuit, the voltage stabilizing circuit be connected with phase-shift circuit, and the output circuit be connected with voltage stabilizing circuit forms.
Wherein, phase shift treatment circuit is by phase shift chip U1, triode VT4, triode VT5, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R12 that the other end is connected with the IN1 pin of phase shift chip U1, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R13, the polar capacitor C12 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R11, the polar capacitor C10 that negative pole is connected with the collector electrode of triode VT4, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C11 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R10 that the other end is connected with the collector electrode of triode VT5, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT4, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D4 that N pole is connected with the emitter of triode VT5 forms, VCC-pin ground connection, the OUT pin of described phase shift chip U1 are connected with the sliding end of potentiometer R10, the emitter of triode VT4 is connected with the base stage of triode VT5, the collector electrode of triode VT5 is connected with two-stage low-pass filtering amplifying circuit, and the negative pole of electric capacity C12 is connected with voltage stabilizing circuit.The present invention adopts phase shift treatment circuit, and it can also protect good stability while LED drive system exports high-power amplification.In order to better implement the present invention, described phase shift chip U1 is preferably LM741 integrated chip.
Transforming circuit can be transformed into suitable voltage for system the line voltage of 220V.It is by transformer T1, the former limit circuit being arranged on the former limit of transformer T1 and the secondary circuit being arranged on transformer T1 secondary composition; Described former limit circuit is by triode VT1, the resistance R1 that one end is connected with the base stage of triode VT1, the other end is connected with the non-same polarity of transformer T1 former limit inductance coil L3, the resistance C1 that positive pole is connected with the base stage of triode VT1, negative pole is connected with the collector electrode of triode VT1, the diode D1 that P pole is connected with the positive pole of polar capacitor C1, N pole is then connected with the Same Name of Ends of transformer T1 former limit inductance coil L2, negative pole is connected with the Same Name of Ends of transformer T1 former limit inductance coil L1, positive pole forms as the polar capacitor C2 of system one input; The base stage of described triode VT1 is connected with the Same Name of Ends of inductance coil L3 as another input of system, collector electrode, grounded emitter, and the Same Name of Ends of inductance coil L2 is connected with the non-same polarity of inductance coil L1, its non-same polarity is then connected with the Same Name of Ends of inductance coil L3.
The polar capacitor C3 that described secondary circuit is then in parallel by the inductance coil L4 with transformer T1 secondary, the unidirectional thyristor D2 be all in parallel with polar capacitor C3 and resistance R2 forms; Unidirectional thyristor D2 is all connected with two-stage low-pass filtering amplifying circuit with two common ends of resistance R2, the control pole ground connection of unidirectional thyristor D2.
Described two-stage low-pass filtering amplifying circuit is by amplifier P1, amplifier P2, triode VT2, triode VT3, positive pole is connected with the non-same polarity of transformer T1 secondary inductance coil L4, the polar capacitor C4 of minus earth, one end is connected with the normal phase input end of amplifier P1, the resistance R3 that the other end is connected with the positive pole of polar capacitor C4, positive pole is connected with amplifier P1 inverting input after resistance R4, the polar capacitor C5 that negative pole is connected with the negative pole of polar capacitor C4, positive pole is connected with the inverting input of amplifier P1, the polar capacitor C6 that negative pole is connected with the output of amplifier P1, negative pole is connected with the output of amplifier P1, the polar capacitor C7 that positive pole is connected with the base stage of triode VT2, one end is connected with the collector electrode of triode VT2, the resistance R5 that the other end is connected with the emitter of triode VT3, positive pole is connected with the base stage of triode VT3 after resistance R6, the polar capacitor C8 that negative pole is connected with the negative pole of polar capacitor C6 and the Same Name of Ends of transformer T1 secondary inductance coil L4 simultaneously, one end is connected with the negative pole of polar capacitor C8, the resistance R7 that the other end is connected with the inverting input of amplifier P2, the resistance R8 be in parallel with resistance R7, be serially connected in the polar capacitor C9 between the output of amplifier P2 and inverting input, and the resistance R9 be serially connected between the normal phase input end of amplifier P2 and output forms, the emitter of described triode VT2 is connected with polar capacitor C6 negative pole, the collector electrode of triode VT3 is connected with the normal phase input end of amplifier P2, the output of amplifier P2 is connected with the collector electrode of triode VT5, and the positive pole of electric capacity C8 is also connected with the positive pole of amplifier P2.By the effect of two-stage low-pass filtering amplifying circuit, the power output making system is larger, thus can meet more LED and use simultaneously.
The voltage exported to make system is more stable, is provided with voltage stabilizing circuit in system.It is by three terminal regulator U, base stage is connected with the IN pin of this three terminal regulator U, emitter is as system one output, the triode VT6 that collector electrode is then connected with the negative pole of electric capacity C12, diode D5 between the emitter and collector being serially connected in triode VT6, positive pole is connected with the collector electrode of triode VT6 after resistance R14, the polar capacitor C13 that negative pole is connected with the IN pin of three terminal regulator U after polar capacitor C14, N pole is connected with the positive pole of polar capacitor C13, the diode D6 that P pole is connected with the emitter of triode VT6, positive pole is connected with the OUT pin of three terminal regulator U, the polar capacitor C15 that negative pole is connected with the negative pole of polar capacitor C13 forms, the OUT pin of described three terminal regulator U is connected with the P pole of diode D6, GND pin ground connection, and the negative pole of electric capacity C13 is also connected with the negative pole of electric capacity C12.
Described output circuit is made up of inductance L 5, thyristor D7 and resistance R15, described inductance L 5 one end is connected with the emitter of triode VT6, the other end is connected with the negative pole of polar capacitor C15, and thyristor D7 is in parallel with inductance L 5 after connecting with resistance R15 again.
As mentioned above, just well the present invention can be implemented.
Claims (6)
1. the low-pass filtering LED voltage-stabilizing system based on Phase Processing, it is characterized in that: by transforming circuit, the two-stage low-pass filtering amplifying circuit be connected with transforming circuit, the phase-shift circuit be connected with two-stage low-pass filtering amplifying circuit, the voltage stabilizing circuit be connected with phase-shift circuit, and the output circuit be connected with voltage stabilizing circuit forms, described phase shift treatment circuit is by phase shift chip U1, triode VT4, triode VT5, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R12 that the other end is connected with the IN1 pin of phase shift chip U1, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R13, the polar capacitor C12 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R11, the polar capacitor C10 that negative pole is connected with the collector electrode of triode VT4, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C11 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R10 that the other end is connected with the collector electrode of triode VT5, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT4, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D4 that N pole is connected with the emitter of triode VT5 forms, VCC-pin ground connection, the OUT pin of described phase shift chip U1 are connected with the sliding end of potentiometer R10, the emitter of triode VT4 is connected with the base stage of triode VT5, the collector electrode of triode VT5 is connected with two-stage low-pass filtering amplifying circuit, and the negative pole of electric capacity C12 is connected with voltage stabilizing circuit.
2. a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing according to claim 1, it is characterized in that: described transforming circuit is by transformer T1, and the former limit circuit being arranged on the former limit of transformer T1 and the secondary circuit being arranged on transformer T1 secondary form; Described former limit circuit is by triode VT1, the resistance R1 that one end is connected with the base stage of triode VT1, the other end is connected with the non-same polarity of transformer T1 former limit inductance coil L3, the resistance C1 that positive pole is connected with the base stage of triode VT1, negative pole is connected with the collector electrode of triode VT1, the diode D1 that P pole is connected with the positive pole of polar capacitor C1, N pole is then connected with the Same Name of Ends of transformer T1 former limit inductance coil L2, negative pole is connected with the Same Name of Ends of transformer T1 former limit inductance coil L1, positive pole forms as the polar capacitor C2 of system one input; The base stage of described triode VT1 is connected with the Same Name of Ends of inductance coil L3 as another input of system, collector electrode, grounded emitter, and the Same Name of Ends of inductance coil L2 is connected with the non-same polarity of inductance coil L1, its non-same polarity is then connected with the Same Name of Ends of inductance coil L3;
The polar capacitor C3 that described secondary circuit is then in parallel by the inductance coil L4 with transformer T1 secondary, the unidirectional thyristor D2 be all in parallel with polar capacitor C3 and resistance R2 forms; Unidirectional thyristor D2 is all connected with two-stage low-pass filtering amplifying circuit with two common ends of resistance R2, the control pole ground connection of unidirectional thyristor D2.
3. a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing according to claim 2, it is characterized in that: described two-stage low-pass filtering amplifying circuit is by amplifier P1, amplifier P2, triode VT2, triode VT3, positive pole is connected with the non-same polarity of transformer T1 secondary inductance coil L4, the polar capacitor C4 of minus earth, one end is connected with the normal phase input end of amplifier P1, the resistance R3 that the other end is connected with the positive pole of polar capacitor C4, positive pole is connected with amplifier P1 inverting input after resistance R4, the polar capacitor C5 that negative pole is connected with the negative pole of polar capacitor C4, positive pole is connected with the inverting input of amplifier P1, the polar capacitor C6 that negative pole is connected with the output of amplifier P1, negative pole is connected with the output of amplifier P1, the polar capacitor C7 that positive pole is connected with the base stage of triode VT2, one end is connected with the collector electrode of triode VT2, the resistance R5 that the other end is connected with the emitter of triode VT3, positive pole is connected with the base stage of triode VT3 after resistance R6, the polar capacitor C8 that negative pole is connected with the negative pole of polar capacitor C6 and the Same Name of Ends of transformer T1 secondary inductance coil L4 simultaneously, one end is connected with the negative pole of polar capacitor C8, the resistance R7 that the other end is connected with the inverting input of amplifier P2, the resistance R8 be in parallel with resistance R7, be serially connected in the polar capacitor C9 between the output of amplifier P2 and inverting input, and the resistance R9 be serially connected between the normal phase input end of amplifier P2 and output forms, the emitter of described triode VT2 is connected with polar capacitor C6 negative pole, the collector electrode of triode VT3 is connected with the normal phase input end of amplifier P2, the output of amplifier P2 is connected with the collector electrode of triode VT5, and the positive pole of electric capacity C8 is also connected with the positive pole of amplifier P2.
4. a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing according to claim 3, it is characterized in that: described voltage stabilizing circuit is by three terminal regulator U, base stage is connected with the IN pin of this three terminal regulator U, emitter is as system one output, the triode VT6 that collector electrode is then connected with the negative pole of electric capacity C12, diode D5 between the emitter and collector being serially connected in triode VT6, positive pole is connected with the collector electrode of triode VT6 after resistance R14, the polar capacitor C13 that negative pole is connected with the IN pin of three terminal regulator U after polar capacitor C14, N pole is connected with the positive pole of polar capacitor C13, the diode D6 that P pole is connected with the emitter of triode VT6, positive pole is connected with the OUT pin of three terminal regulator U, the polar capacitor C15 that negative pole is connected with the negative pole of polar capacitor C13 forms, the OUT pin of described three terminal regulator U is connected with the P pole of diode D6, GND pin ground connection, and the negative pole of electric capacity C13 is also connected with the negative pole of electric capacity C12.
5. a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing according to claim 4, it is characterized in that: described output circuit is made up of inductance L 5, thyristor D7 and resistance R15, described inductance L 5 one end is connected with the emitter of triode VT6, the other end is connected with the negative pole of polar capacitor C15, and thyristor D7 is in parallel with inductance L 5 after connecting with resistance R15 again.
6. a kind of low-pass filtering LED voltage-stabilizing system based on Phase Processing according to any one of Claims 1 to 5, is characterized in that: described phase shift chip U1 is LM741 integrated chip.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693405.8A CN104602397A (en) | 2014-11-26 | 2014-11-26 | Phase processing based low-pass filtering LED voltage stabilizing system |
| CN201510321130.XA CN104869729A (en) | 2014-11-26 | 2015-06-07 | Broad-pulse triggering lowpass filtering LED voltage stabilizing system based on phase processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410693405.8A CN104602397A (en) | 2014-11-26 | 2014-11-26 | Phase processing based low-pass filtering LED voltage stabilizing system |
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| CN104602397A true CN104602397A (en) | 2015-05-06 |
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| CN201410693405.8A Pending CN104602397A (en) | 2014-11-26 | 2014-11-26 | Phase processing based low-pass filtering LED voltage stabilizing system |
| CN201510321130.XA Pending CN104869729A (en) | 2014-11-26 | 2015-06-07 | Broad-pulse triggering lowpass filtering LED voltage stabilizing system based on phase processing |
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| CN201510321130.XA Pending CN104869729A (en) | 2014-11-26 | 2015-06-07 | Broad-pulse triggering lowpass filtering LED voltage stabilizing system based on phase processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222913A (en) * | 2015-11-09 | 2016-01-06 | 四川华索自动化信息工程有限公司 | A kind of carbon baking furnace three-terminal voltage-stabilizing filter resonance formula temperature alarm system |
| CN105350022A (en) * | 2015-10-30 | 2016-02-24 | 四川华索自动化信息工程有限公司 | Intelligent shell breaking control system for aluminum electrolysis based on direct current stabilized power supply |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352336A (en) * | 2015-11-16 | 2016-02-24 | 四川华索自动化信息工程有限公司 | Carbon baking furnace flue temperature monitoring system based on wireless signal transmission |
| CN105437972A (en) * | 2015-12-21 | 2016-03-30 | 成都尼奥尔电子科技有限公司 | Vibration alarming type remote tracking alcohol content tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201312402Y (en) * | 2008-12-02 | 2009-09-16 | 田冬华 | LED lamp constant current circuit |
| CN102612197B (en) * | 2011-01-20 | 2014-04-02 | 海洋王照明科技股份有限公司 | LED (light emitting diode) driving circuit and LED lamp using same |
| KR101437564B1 (en) * | 2012-01-09 | 2014-09-05 | 김진국 | LED lamp driving device operating connected to the ballast for fluorcent lamp and the LED lamp comprising the driving device. |
| CN203206508U (en) * | 2013-03-25 | 2013-09-18 | 福建省卓珏光电科技有限公司 | Novel LED lamp driving circuit |
-
2014
- 2014-11-26 CN CN201410693405.8A patent/CN104602397A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350022A (en) * | 2015-10-30 | 2016-02-24 | 四川华索自动化信息工程有限公司 | Intelligent shell breaking control system for aluminum electrolysis based on direct current stabilized power supply |
| CN105222913A (en) * | 2015-11-09 | 2016-01-06 | 四川华索自动化信息工程有限公司 | A kind of carbon baking furnace three-terminal voltage-stabilizing filter resonance formula temperature alarm system |
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Application publication date: 20150506 |