CN103491689B - Controllable silicon light modulation LED driving switch power circuit - Google Patents
Controllable silicon light modulation LED driving switch power circuit Download PDFInfo
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- CN103491689B CN103491689B CN201310449502.8A CN201310449502A CN103491689B CN 103491689 B CN103491689 B CN 103491689B CN 201310449502 A CN201310449502 A CN 201310449502A CN 103491689 B CN103491689 B CN 103491689B
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 26
- 239000010703 silicon Substances 0.000 title claims abstract description 26
- 239000003381 stabilizer Substances 0.000 claims description 20
- 230000001629 suppression Effects 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 11
- 230000009514 concussion Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of controllable silicon light modulation LED driving switch power circuit, comprise Power Entry Module, isolated power modular converter, output rectification filter module, energy supply control module and output no-load limiting module; The output of described Power Entry Module is connected with energy supply control module and isolated power modular converter, the output of described energy supply control module is connected with the input of output no-load limiting module, and the output of described output no-load limiting module is connected with isolated power modular converter; Described energy supply control module, starts power circuit according to input voltage, generates dimming control voltage and sends into output no-load limiting module; Described output no-load limiting module, for when energy supply control module output short-circuit, obtains stable zero load and exports dimmer voltage and send into isolated power modular converter.Structure of the present invention simply can the Miniaturization Design of realizing circuit, and the overall performance of power circuit is better.
Description
Technical field
The present invention relates to LED drive power field, particularly relate to a kind of controllable silicon light modulation LED driving switch power circuit field.
Background technology
Thyristor regulating is the current a kind of dimming mode be generally used in incandescent lamp and electricity-saving lamp application only.Its operation principle be the waveform of input voltage is cut ripple by the angle of flow after, produce a tangential output voltage waveforms.Apply tangential principle, the effective value of output voltage can be reduced, reduce the power of normal load (ohmic load) with this.The advantage of controllable silicon light modulation is that the compatible original illuminating line of dimmer in the past need not change, and regulates brightness as required, reaches comfortable energy-conservation effect.
Existing controllable silicon light modulation power circuit mainly comprises following two kinds of forms:
As Fig. 1, power source special chip drives metal-oxide-semiconductor or triode is adopted to form isolation or non-isolated reverse-blocking tetrode thyristor power supply.Power source special chip drives metal-oxide-semiconductor or triode is adopted to form isolation or non-isolated reverse-blocking tetrode thyristor power supply.The number of the components and parts in circuit is more, and circuit structure is complicated, cost is high, cannot meet the demand of current small size LED lamp built-in power.
As Fig. 2, discrete circuit is adopted to drive triode to form isolation reverse-blocking tetrode thyristor power supply, constant pressure and flow circuit.Adopt discrete device drives triode to form isolation reverse-blocking tetrode thyristor power supply, efficiency is low, and heating is serious, affects LED lamp light efficiency.The efficiency of discrete circuit is low cannot promote power supply and lamp power, and simultaneously EMC is poor, more difficultly passes through certification.
In view of this, be necessary to be further improved above-mentioned controllable silicon light modulation power circuit.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes that a kind of circuit structure is simple, overall performance preferably controllable silicon light modulation LED driving switch power circuit.
The technical scheme that the present invention adopts is: provide a kind of controllable silicon light modulation LED driving switch power circuit, the output rectification filter module comprising Power Entry Module, isolated power modular converter and be connected with isolated power modular converter output, also comprises energy supply control module, output no-load limiting module; The output of described Power Entry Module is connected with energy supply control module and isolated power modular converter, the output of described energy supply control module is connected with the input of output no-load limiting module, and the output of described output no-load limiting module is connected with isolated power modular converter; Described energy supply control module, for starting power circuit according to input voltage, generating dimmer voltage and sending into output no-load limiting module; Described output no-load limiting module, when being provided for energy supply control module output short-circuit, obtaining stable zero load and exports dimmer voltage and send into isolated power modular converter.
Wherein, described energy supply control module comprises power starting circuit, self-oscillation drive circuit, signal feedback circuit and dim signal testing circuit, described power starting circuit is connected with signal feedback circuit and dim signal testing circuit, and described power starting circuit is also connected with self-oscillation drive circuit; Described power starting circuit, for starting power circuit according to input voltage, and exports dimmer voltage; Described self-oscillation drive circuit, for generating dimmer voltage signal and being fed through dim signal testing circuit; Whether described dim signal testing circuit, reach default voltage threshold for detecting the magnitude of voltage raised in dimmer voltage signal, when the magnitude of voltage raised equals voltage threshold, and the magnitude of voltage of detection is fed through signal feedback circuit; Described signal feedback circuit, generates feedback signal for the magnitude of voltage according to dimmer voltage signal and reduces the magnitude of voltage raised in dim signal.
Wherein, described power starting circuit comprises the first resistance, the second resistance, the 9th resistance, the first voltage-stabiliser tube and N-channel MOS pipe; Described first resistance connects the grid of N-channel MOS pipe by the second resistance, the common junction that described first voltage-stabiliser tube is connected with the grid of N-channel MOS pipe with termination second resistance after the 9th resistor coupled in parallel, other end ground connection.
Wherein, described dimming detection circuit is the 6th resistance, the source electrode of a termination N-channel MOS pipe of described 6th resistance, its other end ground connection.
Wherein, described signal feedback circuit comprises the 5th resistance, the second triode and the 4th electric capacity, the collector electrode of described second triode connects the common junction that the second resistance is connected with the grid of N-channel MOS pipe, its grounded emitter, its base stage connects the positive pole of the 6th diode by the 5th resistance, one termination the 5th resistance of described 4th electric capacity and the common junction of the second triode base stage, its other end ground connection.
Wherein, described self-oscillation drive circuit comprises the 3rd electric capacity and the 4th resistance; The common junction that one termination second resistance of described 4th resistance is connected with the grid of N-channel MOS pipe, its another termination the 3rd electric capacity.
Wherein, described output no-load limiting module comprises the 9th diode, the 8th electric capacity, the 5th diode, the 5th electric capacity, the second voltage-stabiliser tube, the one or three resistance, the one or four resistance, the one or five resistance, the 3rd triode and the 4th triode; The collector electrode of described 3rd triode connects the common junction that the second resistance is connected with the grid of N-channel MOS pipe, its grounded emitter, and its base stage connects the common junction that the one or four resistance is connected with the 4th transistor collector; The grounded emitter of described 4th triode, its base stage connects the negative terminal of the second voltage-stabiliser tube by the one or three resistance; The anode of positive termination the 5th diode of described second voltage-stabiliser tube; The common junction that the anode of one termination the 5th diode of described 5th electric capacity is connected with the second voltage-stabiliser tube, one end ground connection; The negative terminal of described 9th diode connects the collector electrode of the 4th triode by the one or four resistance; The common junction that the negative terminal of one termination the 9th diode of described 8th electric capacity is connected with the one or four resistance, its other end ground connection; The common junction that the negative terminal of one termination the 9th diode of described one or five resistance is connected with the one or four resistance, the common junction that the base stage of its another termination the 4th triode is connected with the one or three resistance.
Wherein, described light modulation damping suppression module, processes for carrying out suppression concussion to input voltage and sends into isolated power modular converter and energy supply control module;
Wherein, described light modulation damping suppression module comprises the one one electric capacity, the one or two electric capacity, the one or six resistance and the second diode, described one or two electric capacity connects the one one electric capacity by the one or six resistance, the common junction ground connection that described one or two electric capacity is connected with the one or six resistance, the positive ending grounding of described second diode, its negative terminal connects the common junction that the one one electric capacity is connected with the one or two electric capacity.
Wherein, also comprise surge absoption module, the input of described surge absoption module is connected with light modulation damping suppression module, and its output is connected with isolated power modular converter.
Advantageous Effects of the present invention is: be different from the complicated problem that reverse-blocking tetrode thyristor power circuit efficiency is low and overall performance is low that cannot realize miniaturized problem and adopt discrete circuit driving switch pipe to be formed of circuit structure that controllable silicon light modulation power circuit of the prior art adopts the reverse-blocking tetrode thyristor power circuit of power source special chip drives switching tube formation to bring, the invention provides a kind of controllable silicon light modulation LED driving switch power circuit, energy supply control module is adopted to comprise power starting circuit, self-oscillation drive circuit, dim signal testing circuit and signal feedback circuit, this power starting circuit makes metal M OS pipe lightly conducting according to input voltage, and self-oscillation drive circuit generates dimmer voltage signal and makes the conducting of the metal M OS pipe degree of depth, this dim signal has detected to be exchanged the voltage raised in photoelectric signal and detects, when the magnitude of voltage raised equals voltage threshold, and the magnitude of voltage of detection is fed through signal feedback circuit, and then metal M OS pipe is ended, complete a concussion cycle of power supply, the circuit components of energy supply control module is less, structure is simple, dim signal testing circuit and signal feedback circuit can realize former limit constant current output, circuit cost is lower, and use discrete device to drive metal M OS pipe, the delivery efficiency of power supply can be improved, adopt output no-load limiting module, when making energy supply control module output short-circuit, obtain stable zero load and export, form no-load protection, the overall performance of power supply can be improved.To sum up, structure of the present invention simply can the Miniaturization Design of realizing circuit, and the overall performance of power circuit is better.
Accompanying drawing explanation
Fig. 1 is the reverse-blocking tetrode thyristor power circuit diagram that prior art adopts power source special chip formation;
Fig. 2 is the reverse-blocking tetrode thyristor power circuit diagram that prior art adopts discrete circuit formation;
Fig. 3 is the block diagram of controllable silicon light modulation LED driving switch power circuit of the present invention;
Fig. 4 is the circuit diagram of controllable silicon light modulation LED driving switch power circuit of the present invention.
Label declaration:
A-Power Entry Module, B-light modulation damping suppression module, C-energy supply control module, D-output no-load limiting module, E-isolated power modular converter, F-output rectification filter module, G-surge absoption module.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 3, present embodiments provide a kind of controllable silicon light modulation LED driving switch power circuit, the output rectification filter module F comprising Power Entry Module A, isolated power modular converter E and be connected with isolated power modular converter E output, also comprises energy supply control module C, output no-load limiting module D; The output of described Power Entry Module A is connected with energy supply control module C and isolated power modular converter E, the output of described energy supply control module C is connected with the input of output no-load limiting module D, and the output of described output no-load limiting module D is connected with isolated power modular converter E; Described energy supply control module C, for starting power circuit according to input voltage, generating brightness adjustment control voltage signal and sending into output no-load limiting module D; Described output no-load limiting module D, when being provided for energy supply control module C output short-circuit, obtaining stable zero load and exports dimming control voltage and send into isolated power modular converter E.
Consult Fig. 4, in above-mentioned scheme, energy supply control module C comprises power starting circuit, self-oscillation drive circuit, signal feedback circuit and dim signal testing circuit, described power starting circuit is connected with signal feedback circuit and dim signal testing circuit, and described power starting circuit is also connected with self-oscillation drive circuit.Above-mentioned power starting circuit, for starting power circuit according to input voltage, and exports dimmer voltage.Described power starting circuit comprises the first resistance R1, the second resistance R2, the 9th resistance R9, the first voltage-stabiliser tube ZD1 and N-channel MOS pipe Q1; Described first resistance R1 connects the grid of N-channel MOS pipe Q1 by the second resistance R2, the common junction that described first voltage-stabiliser tube ZD1 is connected with the grid of N-channel MOS pipe Q1 with the termination second resistance R2 after the 9th resistance R9 parallel connection, other end ground connection.Above-mentioned self-oscillation drive circuit, for generating dimmer voltage signal and being fed through dim signal testing circuit; Described self-oscillation drive circuit comprises the 3rd electric capacity C3 and the 4th resistance R4; The common junction that the one termination second resistance R2 of described 4th resistance R4 is connected with the grid of N-channel MOS pipe Q1, its another termination the 3rd electric capacity C3.Whether above-mentioned dim signal testing circuit, reach default voltage threshold for detecting the magnitude of voltage raised in dimmer voltage signal, when the magnitude of voltage raised equals voltage threshold, and the magnitude of voltage of detection is fed through signal feedback circuit; Described dimming detection circuit is the 6th resistance R6, the source electrode of a termination N-channel MOS pipe Q1 of described 6th resistance R6, its other end ground connection.Above-mentioned signal feedback circuit, generates feedback signal for the magnitude of voltage according to dimmer voltage signal and reduces the magnitude of voltage raised in dim signal.Described signal feedback circuit comprises the 5th resistance R5, the second triode Q2 and the 4th electric capacity C4, the collector electrode of described second triode Q2 connects the common junction that the second resistance R2 is connected with the grid of N-channel MOS pipe Q1, its grounded emitter, its base stage connects the positive pole of the 6th diode D6 by the 5th resistance R5, one termination the 5th resistance R5 of described 4th electric capacity C4 and the common junction of the second triode Q2 base stage, its other end ground connection.During energy supply control module work, input voltage is through the first resistance R1, and the second resistance R2, the 9th resistance R9, the first voltage-stabiliser tube ZD1, form the voltage signal being applicable to N ditch metal-oxide-semiconductor Q1 and driving, and now N ditch metal-oxide-semiconductor Q1 begins to enter lightly conducting state, the positive feedback of auxiliary winding is by the 3rd electric capacity C3, 4th resistance R4 is injected into the G pole of N-channel MOS pipe Q1, N-channel MOS pipe Q1 is maintained and is conducting to degree of depth conducting, and then make the electric current forming linear growth between N-channel MOS pipe Q1 to ground, R6 detects the voltage increment caused by linear growth electric current, and during the Q1 conducting of N-channel MOS pipe, 4th electric capacity C4 charges, when the magnitude of voltage (i.e. voltage increment) raised equals voltage threshold, when voltage increases 0.6V, second triode Q2 starts conducting, make N-channel MOS pipe Q1 exit conducting fast and enter cut-off state, complete a concussion cycle of power supply.Be in cut-off state at N-channel MOS pipe Q1, the voltage of the generation on the 4th electric capacity C4 is released through the 6th diode D6 and the 8th resistance R8, for next concussion cycle prepares.The output voltage values of power supply can be adjusted by the resistance changing the 6th resistance R6, and applicable light modulation driving LED voltage can be obtained by isolated power modular converter E.
Consult Fig. 4, in a specific embodiment, above-mentioned output no-load limiting module D comprises the 9th diode D9, the 8th electric capacity C8, the 5th diode D5, the 5th electric capacity C5, the second voltage-stabiliser tube ZD2, the one or three resistance R13, the one or four resistance R14, the one or five resistance R15, the 3rd triode Q3 and the 4th triode Q4; The collector electrode of described 3rd triode Q3 connects the common junction that the second resistance R2 is connected with the grid of N-channel MOS pipe Q1, its grounded emitter, and its base stage connects the common junction that the one or four resistance R14 is connected with the 4th triode Q4 collector electrode; The grounded emitter of described 4th triode Q4, its base stage connects the negative terminal of the second voltage-stabiliser tube ZD2 by the one or three resistance R13; The anode of positive termination the 5th diode D5 of described second voltage-stabiliser tube ZD2; The common junction that one termination the 5th diode D5 anode of described 5th electric capacity C5 is connected with the second voltage-stabiliser tube ZD2, one end ground connection; The negative terminal of described 9th diode D9 connects the collector electrode of the 4th triode Q4 by the one or four resistance R14; The common junction that the negative terminal of one termination the 9th diode D9 of described 8th electric capacity C8 is connected with the one or four resistance R14, its other end ground connection; The common junction that the negative terminal of one termination the 9th diode D9 of described one or five resistance R15 is connected with the one or four resistance R14, the common junction that the base stage of its another termination the 4th triode Q4 is connected with the one or three resistance R13.When power supply normally works time, auxiliary winding obtains a positive voltage by the 9th diode D9 rectification on the 8th electric capacity C8 provides bias voltage to the 3rd triode Q3 and the 4th triode Q4,4th triode Q4 conducting when output connects load, 3rd triode Q3 ends, N-channel MOS is unaffected, and energy supply control module normally works.When power supply output does not connect load time; output no-load limiting module D works; 5th diode D5 rectification negative pressure out; more than the second voltage-stabiliser tube ZD2 voltage stabilizing value; by the base stage of the one or three resistance R13 to the 4th triode Q4; the 4th triode Q4 is made to exit saturation condition; 3rd triode Q3 starts conducting; and then cause N-channel MOS pipe Q1 to end; auxiliary winding diminishes through the negative pressure out of the 5th diode D5, the 4th triode Q4 is ended, to obtain stable idle voltage output; realize no-load protection, improve the overall performance of power circuit.
Consult Fig. 3 and Fig. 4, preferred scheme, also comprise light modulation damping suppression module B, process for carrying out suppression concussion to input voltage and send into isolated power modular converter E and energy supply control module C; Described light modulation damping suppression module B comprises the one one electric capacity C11, the one or two electric capacity C12, the one or six resistance R16 and the second diode D2, described one or two electric capacity C12 meets the one one electric capacity C11 by the one or six resistance R16, the common junction ground connection that described one or two electric capacity C12 is connected with the one or six resistance R16, described second diode D2 positive ending grounding, its negative terminal connects the common junction that the one one electric capacity C11 is connected with the one or two electric capacity C12.Light modulation damping suppression module B can make the alternating voltage waveform of input level and smooth, and then makes the LED of this power circuit of application can obtain the dimming effect do not glimmered.
In preferred scheme, also comprise surge absoption module G, the input of described surge absoption module G is connected with light modulation damping suppression module B, and its output is connected with isolated power modular converter E.This surge absoption module G, for absorbing the surge of dimmer voltage, prevents overvoltage and destroys power supply.
A kind of controllable silicon light modulation LED driving switch power circuit provided by the invention, energy supply control module is adopted to comprise power starting circuit, self-oscillation drive circuit, dim signal testing circuit and signal feedback circuit, this power starting circuit makes metal M OS pipe lightly conducting according to input voltage, and self-oscillation drive circuit generates dimmer voltage signal and makes the conducting of the metal M OS pipe degree of depth, this dim signal has detected to be exchanged the voltage raised in photoelectric signal and detects, when the magnitude of voltage raised equals voltage threshold, and the magnitude of voltage of detection is fed through signal feedback circuit, and then metal M OS pipe is ended, complete a concussion cycle of power supply, the circuit components of energy supply control module is less, structure is simple, dim signal testing circuit and signal feedback circuit can realize former limit constant current output and realize former limit constant current output, circuit cost is lower, and use discrete device to drive metal M OS pipe, the delivery efficiency of power supply can be improved, adopt output no-load limiting module, when making energy supply control module output short-circuit, obtain stable zero load and export, form no-load protection, the overall performance of power supply can be improved.To sum up, structure of the present invention simply can the Miniaturization Design of realizing circuit, and the overall performance of power circuit is better.
It should be noted that and can be connected in series in the front end of Power Entry Module the LED drive power that controllable silicon dimmer carries out light modulation, facilitate the application of current various LED controllable silicon light modulation light fixture.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a controllable silicon light modulation LED driving switch power circuit, the output rectification filter module comprising Power Entry Module, isolated power modular converter and be connected with isolated power modular converter output, it is characterized in that, also comprise energy supply control module, output no-load limiting module; The output of described Power Entry Module is connected with energy supply control module and isolated power modular converter, the output of described energy supply control module is connected with the input of output no-load limiting module, and the output of described output no-load limiting module is connected with isolated power modular converter;
Described energy supply control module, for starting power circuit according to input voltage, generate dimmer voltage and send into output no-load limiting module, specifically comprise power starting circuit, self-oscillation drive circuit, signal feedback circuit and dim signal testing circuit, described power starting circuit is connected with signal feedback circuit and dim signal testing circuit, and described power starting circuit is also connected with self-oscillation drive circuit;
Described power starting circuit, for starting power circuit according to input voltage, and exports dimmer voltage;
Described self-oscillation drive circuit, for generating dimmer voltage signal and being fed through dim signal testing circuit;
Whether described dim signal testing circuit, reach default voltage threshold for detecting the magnitude of voltage raised in dimmer voltage signal, when the magnitude of voltage raised equals voltage threshold, and the magnitude of voltage of detection is fed through signal feedback circuit;
Described signal feedback circuit, generates feedback signal for the magnitude of voltage according to dimmer voltage signal and reduces the magnitude of voltage raised in dim signal;
Described output no-load limiting module, when being provided for energy supply control module output short-circuit, obtaining stable zero load and exports dimmer voltage and send into isolated power modular converter.
2. controllable silicon light modulation LED driving switch power circuit according to claim 1, is characterized in that, described power starting circuit comprises the first resistance, the second resistance, the 9th resistance, the first voltage-stabiliser tube and N-channel MOS pipe; Described first resistance connects the grid of N-channel MOS pipe by the second resistance, the common junction that described first voltage-stabiliser tube is connected with the grid of N-channel MOS pipe with termination second resistance after the 9th resistor coupled in parallel, other end ground connection.
3. controllable silicon light modulation LED driving switch power circuit according to claim 2, is characterized in that, described dim signal testing circuit is the 6th resistance, the source electrode of a termination N-channel MOS pipe of described 6th resistance, its other end ground connection.
4. controllable silicon light modulation LED driving switch power circuit according to claim 2, it is characterized in that, described signal feedback circuit comprises the 5th resistance, the second triode and the 4th electric capacity, the collector electrode of described second triode connects the common junction that the second resistance is connected with the grid of N-channel MOS pipe, its grounded emitter, its base stage connects the positive pole of the 6th diode by the 5th resistance, a termination the 5th resistance of described 4th electric capacity and the common junction of the second triode base stage, its other end ground connection.
5. controllable silicon light modulation LED driving switch power circuit according to claim 2, is characterized in that, described self-oscillation drive circuit comprises the 3rd electric capacity and the 4th resistance; The common junction that one termination second resistance of described 4th resistance is connected with the grid of N-channel MOS pipe, its another termination the 3rd electric capacity.
6. controllable silicon light modulation LED driving switch power circuit according to claim 5, it is characterized in that, described output no-load limiting module comprises the 9th diode, the 8th electric capacity, the 5th diode, the 5th electric capacity, the second voltage-stabiliser tube, the one or three resistance, the one or four resistance, the one or five resistance, the 3rd triode and the 4th triode; The collector electrode of described 3rd triode connects the common junction that the second resistance is connected with the grid of N-channel MOS pipe, its grounded emitter, and its base stage connects the common junction that the one or four resistance is connected with the 4th transistor collector; The grounded emitter of described 4th triode, its base stage connects the negative terminal of the second voltage-stabiliser tube by the one or three resistance; The anode of positive termination the 5th diode of described second voltage-stabiliser tube; The common junction that the anode of one termination the 5th diode of described 5th electric capacity is connected with the second voltage-stabiliser tube, one end ground connection; The negative terminal of described 9th diode connects the collector electrode of the 4th triode by the one or four resistance; The common junction that the negative terminal of one termination the 9th diode of described 8th electric capacity is connected with the one or four resistance, its other end ground connection; The common junction that the negative terminal of one termination the 9th diode of described one or five resistance is connected with the one or four resistance, the common junction that the base stage of its another termination the 4th triode is connected with the one or three resistance.
7. the controllable silicon light modulation LED driving switch power circuit according to any one of claim 1-6, it is characterized in that, also comprise light modulation damping suppression module, process for carrying out suppression concussion to input voltage and send into isolated power modular converter and energy supply control module.
8. controllable silicon light modulation LED driving switch power circuit according to claim 7, it is characterized in that, described light modulation damping suppression module comprises the one one electric capacity, the one or two electric capacity, the one or six resistance and the second diode, described one or two electric capacity connects the one one electric capacity by the one or six resistance, the common junction ground connection that described one or two electric capacity is connected with the one or six resistance, the positive ending grounding of described second diode, its negative terminal connects the common junction that the one one electric capacity is connected with the one or two electric capacity.
9. controllable silicon light modulation LED driving switch power circuit according to claim 8, it is characterized in that, also comprise surge absoption module, the input of described surge absoption module is connected with light modulation damping suppression module, and its output is connected with isolated power modular converter.
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| CN104619083B (en) * | 2015-01-15 | 2017-10-20 | 生迪光电科技股份有限公司 | Compatible silicon controlled constant voltage circuit, LED light adjusting circuits and LED illumination device |
| CN106304502B (en) * | 2016-09-28 | 2017-12-08 | 东莞铭普光磁股份有限公司 | The power control circuit and system of a kind of lighting device |
| CN111081002A (en) * | 2020-01-16 | 2020-04-28 | 惠州高盛达智联科技有限公司 | Remote controller circuit |
| CN114333636B (en) * | 2021-12-03 | 2023-03-24 | 江苏航天大为科技股份有限公司 | Full-transparent type luminous label controller |
| CN115320675A (en) * | 2022-10-17 | 2022-11-11 | 北京城建智控科技股份有限公司 | Signal circuit control device for rail transit control |
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|---|---|
| CN103491689A (en) | 2014-01-01 |
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