CN106937451B - The LED drive circuit of compatible silicon controlled light modulator - Google Patents
The LED drive circuit of compatible silicon controlled light modulator Download PDFInfo
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- CN106937451B CN106937451B CN201710297494.8A CN201710297494A CN106937451B CN 106937451 B CN106937451 B CN 106937451B CN 201710297494 A CN201710297494 A CN 201710297494A CN 106937451 B CN106937451 B CN 106937451B
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 48
- 239000010703 silicon Substances 0.000 title claims abstract description 48
- 230000005611 electricity Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
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Abstract
The present invention relates to a kind of LED drive circuits of compatible silicon controlled light modulator, which is characterized in that driving circuit includes sequentially connected input circuit, rectification circuit, compensating module, ripple control module and LED load module；The LED drive circuit of the compatible silicon controlled light modulator further includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and adjusting chip U1；The compensating module is equipped with the first input adjustment end, the second input adjustment end, the first output adjustment end and the second output adjustment end；The rectification circuit is equipped with direct-flow positive pole and direct current cathode.The LED drive circuit of the compatible silicon controlled light modulator of the present invention is by being arranged compensating module, enable has sufficient maintenance electric current with the controllable silicon dimmer of LED drive circuit, avoiding the controllable silicon dimmer leads to the flicker of the LED load module because maintaining electric current insufficient, to solve the compatibling problem between controllable silicon dimmer and LED light.
Description
Technical field
The present invention relates to electronic circuit, the LED drive circuit of espespecially a kind of compatible silicon controlled light modulator.
Background technology
LED light is widely used in the various lamplit occasions of needs, and LED drive circuit is the important composition of LED light
Component, major function are to adjust the working condition of internal LED lamp bead.General LED drive circuit can not be with controllable silicon light modulation
Device is compatible with, when its directly and controllable silicon dimmer, LED light will appear stroboscopic phenomenon；And general LED drive circuit defines
LED lamp bead by electric current, enable the brightness of LED light light fix, make LED light that can not coordinate with external controllable silicon dimmer with
Realize the adjustment of light luminance.
Invention content
Based on this, the present invention provides a kind of LED drive circuit of compatible silicon controlled light modulator.
In order to achieve the object of the present invention, the present invention uses following technical scheme：
A kind of LED drive circuit of compatible silicon controlled light modulator, which is characterized in that driving circuit includes sequentially connected defeated
Enter circuit, rectification circuit, compensating module, ripple control module and LED load module；The LED of the compatible silicon controlled light modulator
Driving circuit further includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and adjusting core
Piece U1；The compensating module is equipped with the first input adjustment end, the second input adjustment end, the first output adjustment end and the second output and adjusts
Whole end；The rectification circuit is equipped with direct-flow positive pole and direct current cathode.
The LED drive circuit of the compatible silicon controlled light modulator of the present invention is by being arranged compensating module, order and LED drive circuit
Controllable silicon dimmer there is sufficient maintenance electric current, avoid the controllable silicon dimmer leads to institute because maintaining electric current insufficient
The flicker for stating LED load module, to solve the compatibling problem between controllable silicon dimmer and LED light.
One end of the parallel resistance array RP1 is as the first defeated of the compensating module in one of the embodiments,
Enter adjustment end and the first output adjustment end；One end of the parallel resistance array RP1 connects the direct-flow positive pole of the rectification circuit；
One end of the resistance R4 inputs adjustment end as the second of the compensating module, and one end of the resistance R4 connects the rectification
The direct current cathode of circuit；Second output adjustment end of the other end of the resistance R4 as the compensating module；The adjusting core
Piece U1 is equipped with power input pin, grounding pin and adjustment pin；The other end of the parallel resistance array RP1 connects the tune
Save the power input pin of chip U1；The grounding pin for adjusting chip U1 passes through the another of the resistance R5 and resistance R4
One end connects；The adjustment pin for adjusting chip U1 is connect by parallel resistance array RP2 with the other end of the resistance R4.
The parallel resistance array RP1 includes resistance R1, R2 and R3 parallel with one another in one of the embodiments,；Institute
State resistance R6 and R7 that parallel resistance array RP2 includes parallel with one another.
The ripple control module includes diode D1, D2 in one of the embodiments, parallel resistance array RP3,
RP4, RP5, resistance R11, R14, R15, capacitance C2, C3, C4, C5 and main control chip U2；The ripple control module is equipped with anode
Connecting pin, cathode connecting pin, positive supply side and negative supply side；The positive supply side and negative supply side of the ripple control module and institute
State the connection of LED load module.
Anode connection of the anode of the diode D1 as the ripple control module in one of the embodiments,
End；The anode of the diode D1 is connect with the compensating module；The cathode of the diode D1 passes through the parallel resistance battle array
Row RP3 is connect with one end of the capacitance C2；Positive supply side of the one end of the capacitance C2 as the ripple control module；Institute
State cathode connecting pin of the other end of capacitance C2 as the ripple control module；The resistance R11 is in parallel with the capacitance C2；
The main control chip U2 be equipped with protection pin, source lead, drain lead, energization pins, ripple adjustment pin, grounding pin and
Gate lead；The protection pin of the main control chip U2 is connect with one end of the resistance R14；The other end of the resistance R14
Negative supply side as the ripple control circuit；The source lead of the main control chip U2 passes through the parallel resistance array
RP4 is connect with the other end of the capacitance C2；The drain lead of the main control chip U2 and the other end of the resistance R14 connect
It connects；The energization pins of the main control chip U2 are connect by resistance R15 with one end of the capacitance C2；The main control chip U2's
Energization pins also adjust pin with ripple by the capacitance C3 and connect；The ripple adjustment pin of the main control chip U2 also passes through
The capacitance C4 ground connection；The grounding pin of the main control chip U2 is grounded；The gate lead of the main control chip U2 passes through capacitance
C5 is grounded；The cathode of the diode D2 is connect with one end of the capacitance C2；The anode of the diode D2 and the resistance
The other end of R14 connects；The other end of the capacitance R14 also passes through the another of the parallel resistance array RP5 and capacitance C2
One end connects.
The capacitance C2 is electrolytic capacitor in one of the embodiments,；The anode of the capacitance C2 and the electricity in parallel
Hinder array RP3 connections；The cathode of the capacitance C2 is connect with the parallel resistance array RP5；The parallel resistance array RP3 packets
Include resistance R8, R9 and R10 parallel with one another；The parallel resistance RP4 includes resistance R12, R13 parallel with one another；The parallel connection
Resistance RP5 includes resistance R16, R17 parallel with one another.
The constant flow module includes several shunting modules parallel with one another in one of the embodiments,；The divergent die
Group is equipped with constant current input terminal and current output terminal；The constant current input terminal of the shunting module is connect with the ripple control module；
The current output terminal of the shunting module is connect with the compensating module.
The shunting module includes constant current chip U3 and resistance R18, R19, R20 in one of the embodiments,；The perseverance
It flows chip U3 and is equipped with power input pin, grounding pin and adjustment pin；The power input pin conduct of the constant current chip U3
The constant current input terminal of the shunting module；Electric current output of the grounding pin of the constant current chip U3 as the shunting module
End；The grounding pin of the constant current chip U3 connects the compensating module；The power input pin of the constant current chip U3 also with
One end of the resistance R19 connects；The adjustment pin of the constant current chip U3 is connect with one end of the resistance R18；The electricity
The other end of resistance R18 is connect with the other end of the resistance R19；The other end of the resistance R18 also by resistance R20 with it is described
The grounding pin of constant current chip U3 connects.
The input circuit includes protective tube F1 and varistor RV1 in one of the embodiments,；The rectification circuit
Including rectifier bridge BD1 and capacitance C1.
Description of the drawings
Fig. 1 is the structural schematic diagram of the LED drive circuit of the compatible silicon controlled light modulator of the preferred embodiment of the present invention；
Fig. 2 is the circuit diagram of the LED drive circuit of the compatible silicon controlled light modulator of the present invention；
Fig. 3 is the circuit diagram of the diverter module in the LED drive circuit of the compatible silicon controlled light modulator of the present invention.
Specific implementation mode
It to facilitate the understanding of the present invention, below will be to invention is more fully described.But the present invention can be to be permitted
Mostly different form is realized, however it is not limited to embodiment described herein.Make on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to the understanding of the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
It please refers to Fig.1 to Fig.3, the present invention proposes a kind of LED drive circuit of compatible silicon controlled light modulator, in LED
Electric energy conversion is carried out in lamps and lanterns and generates light source, which can connect with controllable silicon dimmer is followed by obtaining into alternating current
Power supply.The LED drive circuit of the compatible silicon controlled light modulator includes sequentially connected input circuit 10, rectification circuit 20, mends
Repay module 30, ripple control module 40 and LED load module 50；The LED drive circuit of the compatible silicon controlled light modulator also wraps
Include the constant flow module 60 for connecting the LED load module 50；The compensating module 30 is for adjusting the compatible silicon controlled light modulation
The input current of the LED drive circuit of device；The constant flow module 60 is for enabling being kept by electric current for the LED load module 50
Steadily.
The input circuit 10 includes protective tube F1 and varistor RV1；One end of the protective tube F1 and external power supply
Or external devices connection.
The rectification circuit 20 includes rectifier bridge BD1 and capacitance C1；An ac input end of the rectifier bridge BD1 with it is described
The other end of protective tube F1 connects；Another ac input end of the rectifier bridge BD1 and one end of the varistor RV1 connect
It connects；The rectification circuit 20 is equipped with direct-flow positive pole and direct current cathode；The positive output end of the rectifier bridge BD1 is as the rectified current
The direct-flow positive pole on road 20；Direct current cathode of the negative output terminal of the rectifier bridge BD1 as the rectification circuit 20.
Specifically, to reinforce filter effect, the capacitance C1 is electrolytic capacitor；Anode and the rectification of the capacitance C1
The positive output end of bridge BD1 connects；The cathode of the capacitance C1 is connect with the negative output terminal of the rectifier bridge BD1.
The compensating module 30 includes parallel resistance array RP1, RP2, resistance R4, R5 and adjusting chip U1；The compensation
Module 30 is equipped with the first input adjustment end, the second input adjustment end, the first output adjustment end and the second output adjustment end；It is described simultaneously
The one end for joining electric resistance array RP1 inputs adjustment end and the first output adjustment end as the first of the compensating module 30；It is described simultaneously
One end of connection electric resistance array RP1 connects the direct-flow positive pole of the rectification circuit 20；One end of the resistance R4 is as the compensation
Second input adjustment end of module 30, one end of the resistance R4 connects the direct current cathode of the rectification circuit 20；The resistance
Second output adjustment end of the other end of R4 as the compensating module 30；The adjusting chip U1 be equipped with power input pin,
Grounding pin and adjustment pin；The power input that the other end of the parallel resistance array RP1 connects the adjusting chip U1 is drawn
Foot；The grounding pin for adjusting chip U1 is connect by the resistance R5 with the other end of the resistance R4；The adjusting core
The adjustment pin of piece U1 is connect by parallel resistance array RP2 with the other end of the resistance R4.
Specifically, the parallel resistance array RP1 includes resistance R1, R2 and R3 parallel with one another；The parallel resistance battle array
Arrange resistance R6 and R7 that RP2 includes parallel with one another.
The ripple control module 40 includes diode D1, D2, parallel resistance array RP3, RP4, RP5, resistance R11,
R14, R15, capacitance C2, C3, C4, C5 and main control chip U2；The ripple control module 40 is equipped with anode connection terminal, cathode connects
End, positive supply side and negative supply side；Anode connection terminal of the anode of the diode D1 as the ripple control module 40；Institute
The anode for stating diode D1 is connect with the first output adjustment end of the compensating module 30；The cathode of the diode D1 passes through institute
Parallel resistance array RP3 is stated to connect with one end of the capacitance C2；One end of the capacitance C2 is as the ripple control module
40 positive supply side；Cathode connecting pin of the other end of the capacitance C2 as the ripple control module 40；The resistance R11
It is in parallel with the capacitance C2；The main control chip U2 is equipped with protection pin, source lead, drain lead, energization pins, ripple tune
Whole pin, grounding pin and gate lead；The protection pin of the main control chip U2 is connect with one end of the resistance R14；Institute
State negative supply side of the other end of resistance R14 as the ripple control circuit；The source lead of the main control chip U2 passes through
The parallel resistance array RP4 is connect with the other end of the capacitance C2；The drain lead of the main control chip U2 and the electricity
Hinder the other end connection of R14；The energization pins of the main control chip U2 are connect by resistance R15 with one end of the capacitance C2；
The energization pins of the main control chip U2 also adjust pin with ripple by the capacitance C3 and connect；The line of the main control chip U2
Wave adjusts pin and is also grounded by the capacitance C4；The grounding pin of the main control chip U2 is grounded；The main control chip U2's
Gate lead is grounded by capacitance C5；The cathode of the diode D2 is connect with one end of the capacitance C2；The diode D2
Anode connect with the other end of the resistance R14；The other end of the resistance R14 also passes through the parallel resistance array RP5
It is connect with the other end of the capacitance C2.
Specifically, to reinforce filter effect, the capacitance C2 is electrolytic capacitor；The capacitance C2 anode with it is described in parallel
Electric resistance array RP3 connections；The cathode of the capacitance C2 is connect with the parallel resistance array RP5；The parallel resistance array RP3
Including resistance R8, R9 and R10 parallel with one another；The parallel resistance RP4 includes resistance R12, R13 parallel with one another；It is described simultaneously
Join resistance R16, R17 that resistance RP5 includes parallel with one another.
The positive supply side of the ripple control module 40 and negative supply side connect the LED load module 50.
The LED load module 50 includes several LED modules, for generating light.
The constant flow module 60 includes several shunting modules 61 parallel with one another；The shunting module 61 is inputted equipped with constant current
End and current output terminal；The constant current input terminal of the shunting module 61 and the cathode connecting pin of the ripple control module 40 connect
It connects；The current output terminal of the shunting module 61 is connect with the second output adjustment end of the compensating module 30；
The shunting module 61 includes constant current chip U3 and resistance R18, R19, R20；The constant current chip U3 is equipped with power supply
Input pin, grounding pin and adjustment pin；The power input pin of the constant current chip U3 is as the shunting module 61
Constant current input terminal；Current output terminal of the grounding pin of the constant current chip U3 as the shunting module 61；The constant current core
The grounding pin of piece U3 is connect with the second output adjustment end of the compensating module 30；The power input of the constant current chip U3 is drawn
Foot is also connect with one end of the resistance R19；The adjustment pin of the constant current chip U3 is connect with one end of the resistance R18；
The other end of the resistance R18 is connect with the other end of the resistance R19；The other end of the resistance R18 also passes through resistance R20
It is connect with the grounding pin of the constant current chip U3.
The input circuit 10 connect with external controllable silicon dimmer and is followed by into alternating current；It is carried out in external controllable silicon dimmer
When electric current adjusts, the size by electric current between the direct-flow positive pole and direct current cathode of the rectification circuit 20 will change；Pass through institute
The size of current for stating LED load module 50 follows the output current of the rectification circuit 20 to change；The LED load module 50
Light emission luminance is related by the size of electric current to it；When the phase-triggered of external controllable silicon dimmer adjusts, the LED
The light emission luminance of load blocks 50 changes therewith.
Because the power consumption of LED light is much lower with respect to incandescent lamp, if the maintenance electric current of external controllable silicon dimmer is insufficient, it is external can
Control silicon light modulator may in advance turn off in turn-on cycle, enable the LED load module 50 generate flicker, therefore this compatibility is controllable
The LED drive circuit of silicon light modulator is equipped with the compensating module 30；The compensating module 30 can make and the compatible silicon controlled tune
Being maintained on current threshold by electric current for the external controllable silicon dimmer of the LED drive circuit connection of light device, avoids institute
It states LED load module 50 and generates flicker.
The ripple control module 40 is used for according to according to the positive supply of electric current adjustment by the parallel resistance array RP5
Voltage between end and negative supply side, makes the input voltage held stationary of the LED load module 50.
The constant flow module 60 is used to enable the electric current held stationary by the LED load module 50, enables the LED load
The illumination effect of module 50 gets a promotion.
The LED drive circuit of the compatible silicon controlled light modulator of the present invention is by being arranged compensating module, order and LED drive circuit
Controllable silicon dimmer there is sufficient maintenance electric current, avoid the controllable silicon dimmer leads to institute because maintaining electric current insufficient
The flicker for stating LED load module, to solve the compatibling problem between controllable silicon dimmer and LED light.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of LED drive circuit of compatible silicon controlled light modulator, which is characterized in that driving circuit includes sequentially connected input
Circuit, rectification circuit, compensating module, ripple control module and LED load module；The LED of the compatible silicon controlled light modulator drives
Dynamic circuit further includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and adjusting chip
U1；The compensating module is equipped with the first input adjustment end, the second input adjustment end, the first output adjustment end and the second output adjustment
End；The rectification circuit is equipped with direct-flow positive pole and direct current cathode；
One end of the parallel resistance array RP1 inputs adjustment end and the first output adjustment as the first of the compensating module
End；One end of the parallel resistance array RP1 connects the direct-flow positive pole of the rectification circuit；One end of the resistance R4 is as institute
The second input adjustment end of compensating module is stated, one end of the resistance R4 connects the direct current cathode of the rectification circuit；The electricity
Hinder second output adjustment end of the other end of R4 as the compensating module；The adjusting chip U1 be equipped with power input pin,
Grounding pin and adjustment pin；The power input that the other end of the parallel resistance array RP1 connects the adjusting chip U1 is drawn
Foot；The grounding pin for adjusting chip U1 is connect by the resistance R5 with the other end of the resistance R4；The adjusting core
The adjustment pin of piece U1 is connect by parallel resistance array RP2 with the other end of the resistance R4.
2. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, which is characterized in that the electricity in parallel
Hinder resistance R1, R2 and R3 that array RP1 includes parallel with one another；The parallel resistance array RP2 includes resistance R6 parallel with one another
And R7.
3. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, which is characterized in that the ripple control
Molding block includes diode D1, D2, parallel resistance array RP3, RP4, RP5, resistance R11, R14, R15, capacitance C2, C3, C4, C5
And main control chip U2；The ripple control module is equipped with anode connection terminal, cathode connecting pin, positive supply side and negative supply side；Institute
The positive supply side and negative supply side for stating ripple control module are connect with the LED load module.
4. the LED drive circuit of compatible silicon controlled light modulator according to claim 3, which is characterized in that the diode
Anode connection terminal of the anode of D1 as the ripple control module；The anode of the diode D1 connects with the compensating module
It connects；The cathode of the diode D1 is connect by the parallel resistance array RP3 with one end of the capacitance C2；The capacitance C2
Positive supply side of the one end as the ripple control module；The other end of the capacitance C2 is as the ripple control module
Cathode connecting pin；The resistance R11 is in parallel with the capacitance C2；The main control chip U2 is equipped with protection pin, source lead, leakage
Pole pin, energization pins, ripple adjustment pin, grounding pin and gate lead；The protection pin of the main control chip U2 and institute
State one end connection of resistance R14；Negative supply side of the other end of the resistance R14 as the ripple control circuit；The master
The source lead of control chip U2 is connect by the parallel resistance array RP4 with the other end of the capacitance C2；The master control core
The drain lead of piece U2 is connect with the other end of the resistance R14；The energization pins of the main control chip U2 by resistance R15 with
One end of the capacitance C2 connects；The energization pins of the main control chip U2 also adjust pin by the capacitance C3 and ripple and connect
It connects；The ripple adjustment pin of the main control chip U2 is also grounded by the capacitance C4；The grounding pin of the main control chip U2
Ground connection；The gate lead of the main control chip U2 is grounded by capacitance C5；The cathode of the diode D2 is with the capacitance C2's
One end connects；The anode of the diode D2 is connect with the other end of the resistance R14；The other end of the capacitance R14 is also logical
The parallel resistance array RP5 is crossed to connect with the other end of the capacitance C2.
5. the LED drive circuit of compatible silicon controlled light modulator according to claim 4, which is characterized in that the capacitance C2
For electrolytic capacitor；The anode of the capacitance C2 is connect with the parallel resistance array RP3；The cathode of the capacitance C2 with it is described simultaneously
Join electric resistance array RP5 connections；The parallel resistance array RP3 includes resistance R8, R9 and R10 parallel with one another；The electricity in parallel
Hinder resistance R12, R13 that RP4 includes parallel with one another；The parallel resistance RP5 includes resistance R16, R17 parallel with one another.
6. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, which is characterized in that the constant current mould
Block includes several shunting modules parallel with one another；The shunting module is equipped with constant current input terminal and current output terminal；The shunting
The constant current input terminal of module is connect with the ripple control module；The current output terminal and the compensating module of the shunting module
Connection.
7. the LED drive circuit of compatible silicon controlled light modulator according to claim 6, which is characterized in that the divergent die
Group includes constant current chip U3 and resistance R18, R19, R20；The constant current chip U3 is equipped with power input pin, grounding pin and tune
Whole pin；Constant current input terminal of the power input pin of the constant current chip U3 as the shunting module；The constant current chip
Current output terminal of the grounding pin of U3 as the shunting module；The grounding pin of the constant current chip U3 connects the compensation
Module；The power input pin of the constant current chip U3 is also connect with one end of the resistance R19；The tune of the constant current chip U3
Whole pin is connect with one end of the resistance R18；The other end of the resistance R18 is connect with the other end of the resistance R19；Institute
The other end for stating resistance R18 is also connect by resistance R20 with the grounding pin of the constant current chip U3.
8. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, which is characterized in that the input electricity
Road includes protective tube F1 and varistor RV1；The rectification circuit includes rectifier bridge BD1 and capacitance C1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710297494.8A CN106937451B (en) | 2017-04-28 | 2017-04-28 | The LED drive circuit of compatible silicon controlled light modulator |
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| CN201710297494.8A CN106937451B (en) | 2017-04-28 | 2017-04-28 | The LED drive circuit of compatible silicon controlled light modulator |
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| CN110300476B (en) * | 2018-03-23 | 2022-04-12 | 台达电子工业股份有限公司 | Dimmer control circuit, method and system |
| CN110099489B (en) * | 2019-05-14 | 2024-03-01 | 浙江阳光美加照明有限公司 | Driving circuit compatible with silicon controlled rectifier dimming and wireless dimming |
| US10805996B1 (en) * | 2019-12-09 | 2020-10-13 | Epc Product Llc | Dial segmented dimming circuit |
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| WO2017053116A1 (en) * | 2015-09-24 | 2017-03-30 | Osram Sylvania Inc. | Digitally compensated hysteretic power supply with enhanced resolution |
| CN205160859U (en) * | 2015-10-23 | 2016-04-13 | 江苏新广联光电股份有限公司 | Super long life does not have stroboscopic drive power supply |
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| CN106937451A (en) | 2017-07-07 |
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