CN106937451A - The LED drive circuit of compatible silicon controlled light modulator - Google Patents
The LED drive circuit of compatible silicon controlled light modulator Download PDFInfo
- Publication number
- CN106937451A CN106937451A CN201710297494.8A CN201710297494A CN106937451A CN 106937451 A CN106937451 A CN 106937451A CN 201710297494 A CN201710297494 A CN 201710297494A CN 106937451 A CN106937451 A CN 106937451A
- Authority
- CN
- China
- Prior art keywords
- resistance
- module
- parallel
- pin
- electric capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 49
- 239000010703 silicon Substances 0.000 title claims abstract description 49
- 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
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 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
Classifications
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of LED drive circuit of compatible silicon controlled light modulator, it is characterised in that drive circuit includes the input circuit, rectification circuit, compensating module, ripple control module and the LED load module that are sequentially connected；The LED drive circuit of the compatible silicon controlled light modulator also includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and regulation chip U1；The compensating module is provided 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 provided with direct-flow positive pole and direct current negative pole.The LED drive circuit of compatible silicon controlled light modulator of the invention is by setting compensating module, order has sufficient maintenance electric current with the controllable silicon dimmer of LED drive circuit, avoid the controllable silicon dimmer causes the flicker of the LED load module because maintaining electric current deficiency, so as to solve the compatibling problem between controllable silicon dimmer and LED.
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 is widely used in the various lamplit occasions of needs, and LED drive circuit is the important composition of LED
Part, its major function is the working condition of the internal LED lamp bead of regulation.General LED drive circuit cannot be with controllable silicon light modulation
Device is compatible, when its directly and controllable silicon dimmer, LED occurs stroboscopic phenomenon；And general LED drive circuit is defined
LED lamp bead by electric current, make the brightness of LED light fix, make LED cannot with outside controllable silicon dimmer coordinate with
Realize the adjustment of light luminance.
The content of the invention
Based on this, the present invention provides a kind of LED drive circuit of compatible silicon controlled light modulator.
In order to realize the purpose of the present invention, the present invention uses following technical scheme：
A kind of LED drive circuit of compatible silicon controlled light modulator, it is characterised in that drive circuit is defeated including what is be sequentially connected
Enter circuit, rectification circuit, compensating module, ripple control module and LED load module；The LED of the compatible silicon controlled light modulator
Drive circuit also includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and regulation core
Piece U1；The compensating module is provided 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 provided with direct-flow positive pole and direct current negative pole.
The LED drive circuit of compatible silicon controlled light modulator of the invention is by setting compensating module, order and LED drive circuit
Controllable silicon dimmer there is sufficient maintenance electric current, it is to avoid the controllable silicon dimmer because maintaining electric current deficiency causes institute
The flicker of LED load module is stated, so as to solve the compatibling problem between controllable silicon dimmer and LED.
Wherein in one embodiment, one end of the parallel resistance array RP1 is first defeated as the compensating module
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 is input into adjustment end as the second of the compensating module, and one end of the resistance R4 connects the rectification
The direct current negative pole of circuit；The other end of the resistance R4 as the compensating module the second output adjustment end；The regulation core
Piece U1 is provided with power input pin, grounding pin and adjustment pin；The other end of the parallel resistance array RP1 connects the tune
The power input pin of section chip U1；The grounding pin of the regulation chip U1 is another with the resistance R4 by the resistance R5
One end connects；The adjustment pin of the regulation chip U1 is connected by parallel resistance array RP2 with the other end of the resistance R4.
Wherein in one embodiment, the parallel resistance array RP1 includes resistance R1, R2 and R3 parallel with one another；Institute
Stating parallel resistance array RP2 includes resistance R6 and R7 parallel with one another.
Wherein in one embodiment, the ripple control module include diode D1, D2, parallel resistance array RP3,
RP4, RP5, resistance R11, R14, R15, electric capacity C2, C3, C4, C5 and main control chip U2；The ripple control module is provided with positive pole
Connection end, negative pole connection end, 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.
Wherein in one embodiment, the anode of the diode D1 is connected as the positive pole of the ripple control module
End；The anode of the diode D1 is connected with the compensating module；The negative electrode of the diode D1 is by parallel resistance battle array
Row RP3 is connected with one end of the electric capacity C2；One end of the electric capacity C2 as the ripple control module positive supply side；Institute
The other end of electric capacity C2 is stated as the negative pole connection end of the ripple control module；The resistance R11 is in parallel with the electric capacity C2；
The main control chip U2 be provided 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 connected with one end of the resistance R14；The other end of the resistance R14
As the negative supply side of the ripple control circuit；The source lead of the main control chip U2 is by the parallel resistance array
RP4 is connected with the other end of the electric capacity C2；The drain lead of the main control chip U2 connects with the other end of the resistance R14
Connect；The energization pins of the main control chip U2 are connected by resistance R15 with one end of the electric capacity C2；The main control chip U2's
Energization pins also adjust pin and are connected by the electric capacity C3 with ripple；The ripple adjustment pin of the main control chip U2 also passes through
The electric capacity C4 ground connection；The grounding pin ground connection of the main control chip U2；The gate lead of the main control chip U2 passes through electric capacity
C5 is grounded；The negative electrode of the diode D2 is connected with one end of the electric capacity C2；The anode of the diode D2 and the resistance
The other end connection of R14；The other end of the electric capacity R14 is also another with the electric capacity C2 by the parallel resistance array RP5
One end connects.
Wherein in one embodiment, the electric capacity C2 is electrochemical capacitor；The positive pole of the electric capacity C2 and the electricity in parallel
The RP3 connections of resistance array；The negative pole of the electric capacity C2 is connected with the parallel resistance array RP5；The parallel resistance array RP3 bags
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.
Wherein in one embodiment, the constant flow module includes some shunting modules parallel with one another；The divergent die
Group is provided with constant current input and current output terminal；The constant current input of the shunting module is connected with the ripple control module；
The current output terminal of the shunting module is connected with the compensating module.
Wherein in one embodiment, the shunting module includes constant current chip U3 and resistance R18, R19, R20；The perseverance
Stream chip U3 is provided with power input pin, grounding pin and adjustment pin；The power input pin conduct of the constant current chip U3
The constant current input of the shunting module；The grounding pin of the constant current chip U3 is exported as the electric current of 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 connection of the resistance R19；The adjustment pin of the constant current chip U3 is connected with one end of the resistance R18；The electricity
The other end for hindering R18 is connected 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 connection of constant current chip U3.
Wherein in one embodiment, the input circuit includes protective tube F1 and piezo-resistance RV1；The rectification circuit
Including rectifier bridge BD1 and electric capacity C1.
Brief description of the drawings
Fig. 1 is the structural representation of the LED drive circuit of the compatible silicon controlled light modulator of a preferred embodiment of the invention；
Fig. 2 is the circuit diagram of the LED drive circuit of compatible silicon controlled light modulator of the invention；
Fig. 3 is the circuit diagram of the diverter module in the LED drive circuit of compatible silicon controlled light modulator of the invention.
Specific embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But, the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding to the disclosure is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Fig. 1 to Fig. 3 is referred to, the present invention proposes a kind of LED drive circuit of compatible silicon controlled light modulator, in LED
Carry out electric energy in light fixture to change and produce light source, the LED drive circuit can connect with controllable silicon dimmer and be followed by being obtained into civil power
Power supply.The LED drive circuit of the compatible silicon controlled light modulator includes the input circuit 10 being sequentially connected, 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 is also wrapped
Include the constant flow module 60 for connecting the LED load module 50；The compensating module 30 is used to adjust the compatible silicon controlled light modulation
The input current of the LED drive circuit of device；The constant flow module 60 is used to make being kept by electric current for the LED load module 50
Steadily.
The input circuit 10 includes protective tube F1 and piezo-resistance RV1；One end of the protective tube F1 and external power source
Or external devices connection.
The rectification circuit 20 includes rectifier bridge BD1 and electric capacity C1；One ac input end of the rectifier bridge BD1 with it is described
The other end connection of protective tube F1；Another ac input end of the rectifier bridge BD1 connects with one end of the piezo-resistance RV1
Connect；The rectification circuit 20 is provided with direct-flow positive pole and direct current negative pole；The positive output end of the rectifier bridge BD1 is used as the rectified current
The direct-flow positive pole on road 20；The negative output terminal of the rectifier bridge BD1 as the rectification circuit 20 direct current negative pole.
Specifically, to strengthen filter effect, the electric capacity C1 is electrochemical capacitor；The positive pole of the electric capacity C1 and the rectification
The positive output end connection of bridge BD1；The negative pole of the electric capacity C1 is connected with the negative output terminal of the rectifier bridge BD1.
The compensating module 30 includes parallel resistance array RP1, RP2, resistance R4, R5 and regulation chip U1；The compensation
Module 30 is provided 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
One end of connection electric resistance array RP1 is input into 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 used as the compensation
Second input adjustment end of module 30, one end of the resistance R4 connects the direct current negative pole of the rectification circuit 20；The resistance
The other end of R4 as the compensating module 30 the second output adjustment end；The regulation chip U1 be provided with power input pin,
Grounding pin and adjustment pin；The power input of the other end connection regulation chip U1 of the parallel resistance array RP1 is drawn
Pin；The grounding pin of the regulation chip U1 is connected by the resistance R5 with the other end of the resistance R4；The regulation core
The adjustment pin of piece U1 is connected 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
Row RP2 includes resistance R6 and R7 parallel with one another.
The ripple control module 40 includes diode D1, D2, parallel resistance array RP3, RP4, RP5, resistance R11,
R14, R15, electric capacity C2, C3, C4, C5 and main control chip U2；The ripple control module 40 is provided with anode connection terminal, negative pole connection
End, positive supply side and negative supply side；The anode of the diode D1 as the ripple control module 40 anode connection terminal；Institute
The anode of diode D1 is stated to be connected with the first output adjustment end of the compensating module 30；The negative electrode of the diode D1 passes through institute
Parallel resistance array RP3 is stated to be connected with one end of the electric capacity C2；One end of the electric capacity C2 is used as the ripple control module
40 positive supply side；The other end of the electric capacity C2 as the ripple control module 40 negative pole connection end；The resistance R11
It is in parallel with the electric capacity C2；The main control chip U2 is provided with protection pin, source lead, drain lead, energization pins, ripple and adjusts
Whole pin, grounding pin and gate lead；The protection pin of the main control chip U2 is connected with one end of the resistance R14；Institute
The other end of resistance R14 is stated as the negative supply side of the ripple control circuit；The source lead of the main control chip U2 passes through
The parallel resistance array RP4 is connected with the other end of the electric capacity 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 connected by resistance R15 with one end of the electric capacity C2；
The energization pins of the main control chip U2 also adjust pin and are connected by the electric capacity C3 with ripple；The line of the main control chip U2
Ripple adjustment pin is also grounded by the electric capacity C4；The grounding pin ground connection of the main control chip U2；The main control chip U2's
Gate lead is grounded by electric capacity C5；The negative electrode of the diode D2 is connected with one end of the electric capacity C2；The diode D2
Anode be connected with the other end of the resistance R14；The other end of the resistance R14 is also by the parallel resistance array RP5
The other end with the electric capacity C2 is connected.
Specifically, to strengthen filter effect, the electric capacity C2 is electrochemical capacitor；The positive pole of the electric capacity C2 is in parallel with described
Electric resistance array RP3 is connected；The negative pole of the electric capacity C2 is connected 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
Connection resistance RP5 includes resistance R16, R17 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 some LED modules, for producing light.
The constant flow module 60 includes some shunting modules 61 parallel with one another；The shunting module 61 is provided with constant current input
End and current output terminal；The constant current input of the shunting module 61 connects with the negative pole connection end of the ripple control module 40
Connect；The current output terminal of the shunting module 61 is connected 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 provided with power supply
Input pin, grounding pin and adjustment pin；The power input pin of the constant current chip U3 is used as the shunting module 61
Constant current input；The grounding pin of the constant current chip U3 is used as the current output terminal for shunting module 61；The constant current core
The grounding pin of piece U3 is connected with the second output adjustment end of the compensating module 30；The power input of the constant current chip U3 is drawn
The one end of pin also with the resistance R19 is connected；The adjustment pin of the constant current chip U3 is connected with one end of the resistance R18；
The other end of the resistance R18 is connected with the other end of the resistance R19；The other end of the resistance R18 also passes through resistance R20
Grounding pin with the constant current chip U3 is connected.
The input circuit 10 is connected with external controllable silicon dimmer and is followed by into civil power；Carried out in external controllable silicon dimmer
When electric current is adjusted, the size by electric current between the direct-flow positive pole and direct current negative pole of the rectification circuit 20 will change；By 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
Luminosity is related to the size that it passes through electric current；When the phase-triggered of external controllable silicon dimmer is adjusted, the LED
The luminosity of load blocks 50 changes therewith.
Because the power consumption of LED is much lower with respect to incandescent lamp, if the maintenance electric current of external controllable silicon dimmer is not enough, it is external can
Control silicon light modulator may in advance be turned off in turn-on cycle, make the LED load module 50 produce flicker, therefore this compatibility is controllable
The LED drive circuit of silicon light modulator is provided with the compensating module 30；The compensating module 30 can make and the compatible silicon controlled tune
The external controllable silicon dimmer of the LED drive circuit connection of light device maintained on current threshold by electric current, it is to avoid institute
State LED load module 50 and produce flicker.
The ripple control module 40 is used to adjust positive supply according to according to by the electric current of 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 make by the electric current held stationary of the LED load module 50, makes the LED load
The illumination effect of module 50 gets a promotion.
The LED drive circuit of compatible silicon controlled light modulator of the invention is by setting compensating module, order and LED drive circuit
Controllable silicon dimmer there is sufficient maintenance electric current, it is to avoid the controllable silicon dimmer because maintaining electric current deficiency causes institute
The flicker of LED load module is stated, so as to solve the compatibling problem between controllable silicon dimmer and LED.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply 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, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of LED drive circuit of compatible silicon controlled light modulator, it is characterised in that drive circuit includes the input being sequentially connected
Circuit, rectification circuit, compensating module, ripple control module and LED load module；The LED of the compatible silicon controlled light modulator drives
Dynamic circuit also includes constant flow module；The compensating module includes parallel resistance array RP1, RP2, resistance R4, R5 and regulation chip
U1；The compensating module is provided 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 provided with direct-flow positive pole and direct current negative pole.
2. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, it is characterised in that the electricity in parallel
One end of resistance array RP1 is input into adjustment end and the first output adjustment end as the first of the compensating module；The parallel resistance
One end of array RP1 connects the direct-flow positive pole of the rectification circuit；One end of the resistance R4 is used as the of the compensating module
Two input adjustment ends, one end of the resistance R4 connects the direct current negative pole of the rectification circuit；The other end of the resistance R4 is made
It is the second output adjustment end of the compensating module；The regulation chip U1 is provided with power input pin, grounding pin and adjustment
Pin；The power input pin of the other end connection regulation chip U1 of the parallel resistance array RP1；The regulation chip
The grounding pin of U1 is connected by the resistance R5 with the other end of the resistance R4；The adjustment pin of the regulation chip U1 leads to
Parallel resistance array RP2 is crossed to be connected with the other end of the resistance R4.
3. the LED drive circuit of compatible silicon controlled light modulator according to claim 2, it is characterised in that the electricity in parallel
Resistance array RP1 includes resistance R1, R2 and R3 parallel with one another；The parallel resistance array RP2 includes resistance R6 parallel with one another
And R7.
4. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, it is characterised in that the ripple control
Molding block includes diode D1, D2, parallel resistance array RP3, RP4, RP5, resistance R11, R14, R15, electric capacity C2, C3, C4, C5
And main control chip U2；The ripple control module is provided with anode connection terminal, negative pole connection end, positive supply side and negative supply side；Institute
The positive supply side and negative supply side for stating ripple control module are connected with the LED load module.
5. the LED drive circuit of compatible silicon controlled light modulator according to claim 4, it is characterised in that the diode
The anode of D1 as the ripple control module anode connection terminal；The anode of the diode D1 connects with the compensating module
Connect；The negative electrode of the diode D1 is connected by the parallel resistance array RP3 with one end of the electric capacity C2；The electric capacity C2
One end as the ripple control module positive supply side；The other end of the electric capacity C2 is used as the ripple control module
Negative pole connection end；The resistance R11 is in parallel with the electric capacity C2；The main control chip U2 is provided 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；The other end of the resistance R14 as the ripple control circuit negative supply side；The master
The source lead of control chip U2 is connected by the parallel resistance array RP4 with the other end of the electric capacity C2；The master control core
The drain lead of piece U2 is connected with the other end of the resistance R14；The energization pins of the main control chip U2 by resistance R15 with
One end connection of the electric capacity C2；The energization pins of the main control chip U2 also adjust pin and connect by the electric capacity C3 with ripple
Connect；The ripple adjustment pin of the main control chip U2 is also grounded by the electric capacity C4；The grounding pin of the main control chip U2
Ground connection；The gate lead of the main control chip U2 is grounded by electric capacity C5；The negative electrode of the diode D2 is with the electric capacity C2's
One end connects；The anode of the diode D2 is connected with the other end of the resistance R14；The other end of the electric capacity R14 also leads to
The parallel resistance array RP5 is crossed to be connected with the other end of the electric capacity C2.
6. the LED drive circuit of compatible silicon controlled light modulator according to claim 5, it is characterised in that the electric capacity C2
It is electrochemical capacitor；The positive pole of the electric capacity C2 is connected with the parallel resistance array RP3；The negative pole of the electric capacity C2 with it is described simultaneously
The RP5 connections of connection electric resistance array；The parallel resistance array RP3 includes resistance R8, R9 and R10 parallel with one another；The electricity in parallel
Resistance RP4 includes resistance R12, R13 parallel with one another；The parallel resistance RP5 includes resistance R16, R17 parallel with one another.
7. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, it is characterised in that the constant current mould
Block includes some shunting modules parallel with one another；The shunting module is provided with constant current input and current output terminal；The shunting
The constant current input of module is connected with the ripple control module；The current output terminal and the compensating module of the shunting module
Connection.
8. the LED drive circuit of compatible silicon controlled light modulator according to claim 7, it is characterised in that the divergent die
Group includes constant current chip U3 and resistance R18, R19, R20；The constant current chip U3 is provided with power input pin, grounding pin and tune
Whole pin；The power input pin of the constant current chip U3 is used as the constant current input for shunting module；The constant current chip
The grounding pin of U3 is used as the current output terminal for shunting module；The grounding pin of the constant current chip U3 connects the compensation
Module；The one end of the power input pin of the constant current chip U3 also with the resistance R19 is connected；The tune of the constant current chip U3
Whole pin is connected with one end of the resistance R18；The other end of the resistance R18 is connected with the other end of the resistance R19；Institute
The other end for stating resistance R18 is also connected by resistance R20 with the grounding pin of the constant current chip U3.
9. the LED drive circuit of compatible silicon controlled light modulator according to claim 1, it is characterised in that the input electricity
Road includes protective tube F1 and piezo-resistance RV1；The rectification circuit includes rectifier bridge BD1 and electric capacity C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297494.8A CN106937451B (en) | 2017-04-28 | 2017-04-28 | The LED drive circuit of compatible silicon controlled light modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297494.8A CN106937451B (en) | 2017-04-28 | 2017-04-28 | The LED drive circuit of compatible silicon controlled light modulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106937451A true CN106937451A (en) | 2017-07-07 |
| CN106937451B CN106937451B (en) | 2018-09-28 |
Family
ID=59437319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710297494.8A Expired - Fee Related CN106937451B (en) | 2017-04-28 | 2017-04-28 | The LED drive circuit of compatible silicon controlled light modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106937451B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099489A (en) * | 2019-05-14 | 2019-08-06 | 浙江阳光美加照明有限公司 | It is a kind of it is compatible silicon controlled light modulation and Wireless Light modulating driving circuit |
| CN110300476A (en) * | 2018-03-23 | 2019-10-01 | 台达电子工业股份有限公司 | Dimmer control circuit, method and system |
| US10805996B1 (en) * | 2019-12-09 | 2020-10-13 | Epc Product Llc | Dial segmented dimming circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100073728A (en) * | 2008-12-23 | 2010-07-01 | 카멜테크 주식회사 | Power supply device for led |
| CN204442775U (en) * | 2015-02-27 | 2015-07-01 | 佛山市华永泰光电科技有限公司 | A kind of controllable silicon light modulation LED drive circuit with compensating circuit |
| 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 |
| WO2017053116A1 (en) * | 2015-09-24 | 2017-03-30 | Osram Sylvania Inc. | Digitally compensated hysteretic power supply with enhanced resolution |
-
2017
- 2017-04-28 CN CN201710297494.8A patent/CN106937451B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100073728A (en) * | 2008-12-23 | 2010-07-01 | 카멜테크 주식회사 | Power supply device for led |
| CN204442775U (en) * | 2015-02-27 | 2015-07-01 | 佛山市华永泰光电科技有限公司 | A kind of controllable silicon light modulation LED drive circuit with compensating circuit |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300476A (en) * | 2018-03-23 | 2019-10-01 | 台达电子工业股份有限公司 | Dimmer control circuit, method and system |
| 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 |
| CN110099489A (en) * | 2019-05-14 | 2019-08-06 | 浙江阳光美加照明有限公司 | It is a kind of it is compatible silicon controlled light modulation and Wireless Light modulating driving circuit |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106937451B (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104333934B (en) | LED illumination drive circuit | |
| CN101909393B (en) | LED lighting method and device | |
| CN106332361B (en) | One kind is without stroboscopic LED filament lamp | |
| CN106937451B (en) | The LED drive circuit of compatible silicon controlled light modulator | |
| CN104918387B (en) | A kind of LED light device of exchange driving | |
| CN205793482U (en) | A kind of zero-frequency dodges light modulation filament circuit for lamp | |
| CN104540287B (en) | LED dimming driving circuits | |
| CN205912289U (en) | Adjustable LED lamp driving circuit of wide voltage | |
| CN107197569A (en) | A kind of LED backlight Drive Protecting Circuit and display device | |
| CN201757323U (en) | Flicker-free LED MR16 spotlight with dimming function | |
| CN202268152U (en) | Backlight constant-current and constant-voltage driving circuit for display screen | |
| CN104582183B (en) | A kind of constant current driver circuit for LED and device using step-down constant current driving unit | |
| CN106879126A (en) | LED linear dimming driving circuit | |
| CN107660019A (en) | Light source and light emitting module | |
| CN101742785A (en) | Intelligent dimming three-primary-color LED street lamp controller | |
| CN101852374A (en) | Unflickering LED MR16 spot light with light regulating function | |
| CN105828490B (en) | A kind of LED energy-saving traffic signal lamps with an automatic light meter | |
| CN201667745U (en) | Intelligent dimming tricolor LED streetlamp controller | |
| CN206547209U (en) | A kind of single battery drives LED circuit | |
| CN206865799U (en) | A kind of controllable silicon light modulation toning LED circuit | |
| CN202841658U (en) | Intelligent ten-pin LED drive chip | |
| CN207011047U (en) | A kind of circuit that a Power supply belt multiple-channel output phase-cut dimming can be achieved | |
| CN202941010U (en) | Multichannel LED drive circuit | |
| CN107124785B (en) | LED linear power supply dynamics compensation circuits, driving circuit and photoelectricity mould group | |
| CN204598402U (en) | Based on the LED sectional dimming power supply of power supply constant-current driven chip CSC8935 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 No. 31 Wujiayong Section, Beiwang Road, Zhongtang Town, Dongguan City, Guangdong Province Patentee after: DONGGUAN PAN AMERICAN ELECTRONICS Co.,Ltd. Address before: 523820 Guangdong Province, Dongguan City Industrial Zone Dalingshan Lianping Zhen Lian Road Patentee before: DONGGUAN PAN AMERICAN ELECTRONICS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 |