CN106488617B - A kind of driving circuit for pwm power control - Google Patents
A kind of driving circuit for pwm power control Download PDFInfo
- Publication number
- CN106488617B CN106488617B CN201611178148.XA CN201611178148A CN106488617B CN 106488617 B CN106488617 B CN 106488617B CN 201611178148 A CN201611178148 A CN 201611178148A CN 106488617 B CN106488617 B CN 106488617B
- Authority
- CN
- China
- Prior art keywords
- optocoupler
- triode
- signal
- resistance
- diode
- 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.)
- Active
Links
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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
Abstract
The present invention is used for the driving circuit of pwm power control, including exchanging positive half cycle chopping signal input circuit, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, exchange positive half cycle afterflow signal input circuit, AC signal output circuit, positive half cycle chopping signal input circuit, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, the output end of exchange positive half cycle afterflow signal input circuit is separately connected the control terminal of AC signal output circuit, AC signal output circuit input terminal connects AC signal AC_L_INPUT, AC signal output circuit output end output treated AC signal.It after the circuit is by the independent processing to different piece in current signal, is exported integrating current signal, substantially increases accuracy and the stability of PWM controls.
Description
Technical field
The present invention relates to a kind of driving circuit, specifically a kind of driving circuit for pwm power control.
Background technology
In existing smart home LED intelligent lamp control links, pwm power control is the foundation ring that power supply quality ensures
Section, decides the stability of entire power supply quality.Current pwm power control is fitted using the PWM rectifier of mainstream on the market
For the disposed of in its entirety of current signal, lacks and the clear of current signal is divided and accurately controlled, cannot be satisfied existing intelligence
Control system is for PWM controls fining, stabilized requirement.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of driving circuits for pwm power control, by electric current
It in signal after the independent processing of different piece, is exported integrating current signal, substantially increases the accuracy of PWM controls and steady
It is qualitative.
The present invention uses following technical scheme：A kind of driving circuit for pwm power control, which is characterized in that including
Exchange positive half cycle chopping signal input circuit, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input
Circuit, exchange positive half cycle afterflow signal input circuit, AC signal output circuit, positive half cycle chopping signal input circuit, exchange
Negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, exchange positive half cycle afterflow signal input circuit
Input terminal input positive half cycle chopping signal, exchange negative half period chopping signal, exchange negative half period afterflow signal, exchange just half respectively
Zhou Xuliu signals, positive half cycle chopping signal input circuit, exchange negative half period chopping signal input circuit, exchange negative half period afterflow letter
Number input circuit, the output end for exchanging positive half cycle afterflow signal input circuit are separately connected the control of AC signal output circuit
It holds, AC signal output circuit input terminal connection AC signal AC_L_INPUT, at AC signal output circuit output end output
AC signal after reason.
Further, the positive half cycle chopping signal input circuit includes optocoupler U1, and optocoupler U1 second pins connect voltage
VCC, optocoupler U1 thirds pin connect positive half cycle the 5th pin of chopping signal PWM_1, optocoupler U1 by resistance R1 and are grounded, optocoupler U1 the
Eight pins connect voltage Vdrv1, the 6th pins of optocoupler U1 and the one end the 7th pin equal connecting resistance R7, and the resistance R7 other ends connect three respectively
Pole pipe Q1 base stages, triode Q2 base stages, triode Q1 collectors meet voltage Vdrv1, and triode Q1 emitters connect exchange letter respectively
Number output circuit control terminal, triode Q2 emitters, triode Q2 grounded collectors.
Further, the negative half period chopping signal input circuit includes optocoupler U2, and optocoupler U2 second pins connect voltage
VCC, optocoupler U2 thirds pin connect negative half period the 5th pin of chopping signal PWM_2, optocoupler U2 by resistance R2 and are grounded, optocoupler U2 the
Eight pins connect voltage Vdrv1, the 6th pins of optocoupler U2 and the one end the 7th pin equal connecting resistance R8, and the resistance R8 other ends connect three respectively
Pole pipe Q3 base stages, triode Q4 base stages, triode Q3 collectors meet voltage Vdrv1, and triode Q3 emitters connect exchange letter respectively
Number output circuit control terminal, triode Q4 emitters, triode Q4 grounded collectors.
Further, the negative half period afterflow signal input circuit includes optocoupler U3, and optocoupler U3 second pins connect voltage
VCC, optocoupler U3 thirds pin connect negative half period afterflow the 5th pin of signal PWM_3, optocoupler U3 by resistance R3 and are grounded, optocoupler U3 the
Eight pins connect voltage Vdrv2, the 6th pins of optocoupler U3 and the one end the 7th pin equal connecting resistance R9, and the resistance R9 other ends connect three respectively
Pole pipe Q5 base stages, triode Q6 base stages, triode Q5 collectors meet voltage Vdrv2, and triode Q5 emitters connect exchange letter respectively
Number output circuit control terminal, triode Q6 emitters, triode Q6 grounded collectors.
Further, the positive half cycle afterflow signal input circuit includes optocoupler U4, and optocoupler U4 second pins connect voltage
VCC, optocoupler U4 thirds pin connect positive half cycle afterflow the 5th pin of signal PWM_4, optocoupler U4 by resistance R4 and are grounded, optocoupler U4 the
Eight pins connect voltage Vdrv2, the 6th pins of optocoupler U4 and the one end the 7th pin equal connecting resistance R12, and the resistance R12 other ends connect respectively
Triode Q7 base stages, triode Q8 base stages, triode Q7 collectors meet voltage Vdrv2, and triode Q7 emitters connect exchange respectively
Signal output apparatus control terminal, triode Q8 emitters, triode Q8 grounded collectors.
Further, optocoupler U1, optocoupler U2, optocoupler U3, optocoupler U4 are all made of TLP250 chips.
Further, triode Q1, Q3, Q5, Q7 is all made of SS8050 triodes, and triode Q2, Q4, Q6, Q8 are all made of
SS8550 triodes.
Further, the AC signal output circuit includes tetra- IGBT of GB1, GB2, GB3, GB4, the current collection of GB1
Pole meets diode D1 cathode, AC signal AC_L_INPUT, diode D1 plus earths respectively, and GB1 emitters are grounded, GB1
Pole connects diode D2 cathode, the one end resistance R13, diode D2 plus earths, resistance R13 other ends ground connection respectively；The current collection of GB2
Pole connects diode D6 cathode, signal AC_L_PWM, diode D6 plus earths, GB2 emitters ground connection, GB2 gate poles difference respectively
Connect diode D3 cathode, the one end resistance R14, diode D3 plus earths, resistance R14 other ends ground connection；The collector of GB3 is distinguished
Diode D7 cathode, signal AC_L_PWM, diode D7 plus earths are met, GB3 emitters are grounded, and GB3 gate poles connect two poles respectively
Pipe D4 cathode, the one end resistance R15, diode D4 plus earths, resistance R15 other ends ground connection；The collector of GB4 connects two poles respectively
Pipe D8 cathode, signal AC_N, diode D8 plus earths, GB4 emitters ground connection, GB4 gate poles connect diode D5 cathode, electricity respectively
Hinder the one end R16, diode D5 plus earths, resistance R16 other ends ground connection；Diode D2 anodes connect voltage stabilizing two by resistance R10
Pole pipe Z1 cathode, zener diode Z1 plus earths, zener diode Z1 cathode connect voltage Vdrv1, diode by resistance R5
D4 anodes connect zener diode Z2 cathode, zener diode Z2 plus earths by resistance R11, and zener diode Z2 cathode pass through
Resistance R6 meets voltage Vdrv2.
Further, the model of tetra- IGBT of GB1, GB2, GB3, GB4 is G60N100.
The beneficial effects of the invention are as follows：PWM1 is exchange positive half cycle chopping signal, and PWM2 is exchange negative half period chopping signal,
PWM3 is exchange negative half period afterflow signal, and PWM4 is exchange positive half cycle afterflow signal, tetra- road PWM of PWM1, PWM2, PWM3, PWM4
Signal passes through optocoupler U1, U2, U3, U4 and carries out photoelectric coupling respectively, then is exported by the secondary of optocoupler U1, U2, U3, U4, passes through respectively
Overdrive triode Q1 and Q2, Q3 and Q4, Q5 and Q6, Q7 and Q8 drives GB1, GB2, GB3, GB4.Entire control process is to electricity
It flows in signal after the independent processing of different piece, chopping signal and AC signal AC_L_INPUT is being integrated into output, carried significantly
The accuracy of high PWM controls and stability.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention.
Specific implementation mode
A kind of driving circuit for pwm power control as shown in Figure 1, including exchange positive half cycle chopping signal input electricity
Road, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, exchange positive half cycle afterflow signal are defeated
Enter circuit, AC signal output circuit.
Positive half cycle chopping signal input circuit includes optocoupler U1, and optocoupler U1 second pins meet voltage VCC, and optocoupler U1 thirds are drawn
Foot connects positive half cycle the 5th pin of chopping signal PWM_1, optocoupler U1 ground connection by resistance R1, and the 8th pins of optocoupler U1 connect voltage
The 6th pin of Vdrv1, optocoupler U1 and the one end the 7th pin equal connecting resistance R7, the resistance R7 other ends connect respectively triode Q1 base stages,
Triode Q2 base stages, triode Q1 collectors meet voltage Vdrv1, and triode Q1 emitters connect AC signal output circuit control respectively
End processed, triode Q2 emitters, triode Q2 grounded collectors.
Negative half period chopping signal input circuit includes optocoupler U2, and optocoupler U2 second pins meet voltage VCC, and optocoupler U2 thirds are drawn
Foot connects negative half period the 5th pin of chopping signal PWM_2, optocoupler U2 ground connection by resistance R2, and the 8th pins of optocoupler U2 connect voltage
The 6th pin of Vdrv1, optocoupler U2 and the one end the 7th pin equal connecting resistance R8, the resistance R8 other ends connect respectively triode Q3 base stages,
Triode Q4 base stages, triode Q3 collectors meet voltage Vdrv1, and triode Q3 emitters connect AC signal output circuit control respectively
End processed, triode Q4 emitters, triode Q4 grounded collectors.
Negative half period afterflow signal input circuit includes optocoupler U3, and optocoupler U3 second pins meet voltage VCC, and optocoupler U3 thirds are drawn
Foot connects negative half period afterflow the 5th pin of signal PWM_3, optocoupler U3 ground connection by resistance R4, and the 8th pins of optocoupler U3 connect voltage
The 6th pin of Vdrv2, optocoupler U3 and the one end the 7th pin equal connecting resistance R9, the resistance R9 other ends connect respectively triode Q5 base stages,
Triode Q6 base stages, triode Q5 collectors meet voltage Vdrv2, and triode Q5 emitters connect AC signal output circuit control respectively
End processed, triode Q6 emitters, triode Q6 grounded collectors.
Positive half cycle afterflow signal input circuit includes optocoupler U4, and optocoupler U4 second pins meet voltage VCC, and optocoupler U4 thirds are drawn
Foot connects positive half cycle afterflow the 5th pin of signal PWM_4, optocoupler U4 ground connection by resistance R4, and the 8th pins of optocoupler U4 connect voltage
The 6th pin of Vdrv2, optocoupler U4 and the one end the 7th pin equal connecting resistance R12, the resistance R12 other ends connect triode Q7 bases respectively
Pole, triode Q8 base stages, triode Q7 collectors meet voltage Vdrv2, and triode Q7 emitters connect AC signal output electricity respectively
Road control terminal, triode Q8 emitters, triode Q8 grounded collectors.
Above-mentioned optocoupler U1, optocoupler U2, optocoupler U3, optocoupler U4 are all made of TLP250 chips, and triode Q1, Q3, Q5, Q7 are equal
Using SS8050 triodes, triode Q2, Q4, Q6, Q8 are all made of SS8550 triodes.
AC signal output circuit includes tetra- IGBT of GB1, GB2, GB3, GB4 tetra- IGBT, GB1, GB2, GB3, GB4
Model is G60N100.The collector of GB1 connects diode D1 cathode, AC signal AC_L_INPUT, diode D1 anodes respectively
Ground connection, GB1 emitters ground connection, GB1 gate poles connect diode D2 cathode, the one end resistance R13, diode D2 plus earths, electricity respectively
Hinder R13 other ends ground connection；The collector of GB2 meets diode D6 cathode, signal AC_L_PWM respectively, diode D6 plus earths,
GB2 emitters are grounded, and GB2 gate poles meet diode D3 cathode, the one end resistance R14, diode D3 plus earths, resistance R14 respectively
The other end is grounded；The collector of GB3 connects diode D7 cathode, signal AC_L_PWM, diode D7 plus earths, GB3 hairs respectively
Emitter grounding, GB3 gate poles connect diode D4 cathode, the one end resistance R15, diode D4 plus earths, the resistance R15 other ends respectively
Ground connection；The collector of GB4 meets diode D8 cathode, signal AC_N, diode D8 plus earths respectively, and GB4 emitters are grounded,
GB4 gate poles connect diode D5 cathode, the one end resistance R16, diode D5 plus earths, resistance R16 other ends ground connection respectively；Two poles
Pipe D2 anodes connect zener diode Z1 cathode, zener diode Z1 plus earths by resistance R10, and zener diode Z1 cathode lead to
It crosses resistance R5 and meets voltage Vdrv1, diode D4 anodes connect zener diode Z2 cathode by resistance R11, and zener diode Z2 is just
Pole is grounded, and zener diode Z2 cathode meet voltage Vdrv2 by resistance R6.
Entirely the operation principle of circuit is：
PWM1 is exchange positive half cycle chopping signal, and PWM2 is exchange negative half period chopping signal, and PWM3 is that exchange negative half period is continuous
Flow signal, PWM4 be exchange positive half cycle afterflow signal, tetra- road pwm signal of PWM1, PWM2, PWM3, PWM4 respectively pass through optocoupler U1,
U2, U3, U4 carry out photoelectric coupling, then by optocoupler U1, U2, U3, U4 secondary export, respectively through overdrive triode Q1 and Q2,
Q3 and Q4, Q5 and Q6, Q7 and Q8 drive GB1, GB2, GB3, GB4.
When AC signal AC_L_INPUT is positive half cycle, PWM1 exports PWM chopping signals, AC signal AC_L_INPUT warps
The chopping modulation for crossing PWM1 is exported by diode D6, and GB4 constant conductions and D8 form positive half cycle freewheeling circuit at this time；Exchange
When signal AC_L_INPUT is negative half period, PWM2 exports PWM chopping signals, and AC signal AC_L_INPUT passes through the copped wave of PWM2
Modulation, is exported by diode D1, and GB3 constant conductions and D7 form negative half period freewheeling circuit at this time；R5 and Z1, R6 and Z2 difference
Generate the shutdown negative voltage generating circuit of GB1 and GB2, GB3 and GB4 work；R13 and D2, R14 and D3, R15 and D4, R16 and D5 points
Not Gou Cheng GB1, GB2, GB3, GB4 gate protection circuit.
It should be pointed out that specific implementation mode described above can make those skilled in the art that the present invention be more fully understood
Concrete structure, but do not limit the invention in any way create.Therefore, although specification and drawings and examples are to the present invention
Creation has been carried out detailed description, it will be understood by those skilled in the art, however, that still can be repaiied to the invention
Change or equivalent replacement；And technical solution and its improvement of all spirit and scope for not departing from the invention, cover
In the protection domain of the invention patent.
Claims (8)
1. a kind of driving circuit for pwm power control, which is characterized in that including exchange positive half cycle chopping signal input electricity
Road, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, exchange positive half cycle afterflow signal are defeated
Enter circuit, AC signal output circuit, positive half cycle chopping signal input circuit, is handed over exchange negative half period chopping signal input circuit
Stream negative half period afterflow signal input circuit, the input terminal for exchanging positive half cycle afterflow signal input circuit input positive half cycle copped wave respectively
Signal, exchange negative half period chopping signal, exchange negative half period afterflow signal, exchange positive half cycle afterflow signal, positive half cycle chopping signal
Input circuit, exchange negative half period chopping signal input circuit, exchange negative half period afterflow signal input circuit, exchange positive half cycle afterflow
The output end of signal input circuit is separately connected the control terminal of AC signal output circuit, and AC signal output circuit input terminal connects
Meet AC signal AC_L_INPUT, AC signal output circuit output end output treated AC signal；The positive half cycle
Chopping signal input circuit includes optocoupler U1, and optocoupler U1 second pins meet voltage VCC, and optocoupler U1 thirds pin is connect by resistance R1
Positive half cycle the 5th pin of chopping signal PWM_1, optocoupler U1 is grounded, and the 8th pins of optocoupler U1 meet voltage Vdrv1, and optocoupler U1 the 6th draws
Foot and the one end the 7th pin equal connecting resistance R7, the resistance R7 other ends connect triode Q1 base stages, triode Q2 base stages, triode respectively
Q1 collectors meet voltage Vdrv1, and triode Q1 emitters connect AC signal output circuit control terminal, triode Q2 transmittings respectively
Pole, triode Q2 grounded collectors.
2. a kind of driving circuit for pwm power control according to claim 1, which is characterized in that described negative half
All chopping signal input circuits include optocoupler U2, and optocoupler U2 second pins meet voltage VCC, and optocoupler U2 thirds pin passes through resistance R2
Negative half period the 5th pin of chopping signal PWM_2, optocoupler U2 ground connection is connect, the 8th pins of optocoupler U2 meet voltage Vdrv1, optocoupler U2 the 6th
Pin and the one end the 7th pin equal connecting resistance R8, the resistance R8 other ends connect triode Q3 base stages, triode Q4 base stages, three poles respectively
Pipe Q3 collectors meet voltage Vdrv1, and triode Q3 emitters connect AC signal output circuit control terminal, triode Q4 transmittings respectively
Pole, triode Q4 grounded collectors.
3. a kind of driving circuit for pwm power control according to claim 2, which is characterized in that described negative half
Zhou Xuliu signal input circuits include optocoupler U3, and optocoupler U3 second pins meet voltage VCC, and optocoupler U3 thirds pin passes through resistance R3
Negative half period afterflow the 5th pin of signal PWM_3, optocoupler U3 ground connection is connect, the 8th pins of optocoupler U3 meet voltage Vdrv2, optocoupler U3 the 6th
Pin and the one end the 7th pin equal connecting resistance R9, the resistance R9 other ends connect triode Q5 base stages, triode Q6 base stages, three poles respectively
Pipe Q5 collectors meet voltage Vdrv2, and triode Q5 emitters connect AC signal output circuit control terminal, triode Q6 transmittings respectively
Pole, triode Q6 grounded collectors.
4. a kind of driving circuit for pwm power control according to claim 3, which is characterized in that described just half
Zhou Xuliu signal input circuits include optocoupler U4, and optocoupler U4 second pins meet voltage VCC, and optocoupler U4 thirds pin passes through resistance R4
Positive half cycle afterflow the 5th pin of signal PWM_4, optocoupler U4 ground connection is connect, the 8th pins of optocoupler U4 meet voltage Vdrv2, optocoupler U4 the 6th
Pin and the one end the 7th pin equal connecting resistance R12, the resistance R12 other ends connect triode Q7 base stages, triode Q8 base stages respectively, and three
Pole pipe Q7 collectors meet voltage Vdrv2, and triode Q7 emitters connect AC signal output circuit control terminal, triode Q8 hairs respectively
Emitter-base bandgap grading, triode Q8 grounded collectors.
5. a kind of driving circuit for pwm power control according to claim 4, which is characterized in that optocoupler U1, optocoupler
U2, optocoupler U3, optocoupler U4 are all made of TLP250 chips.
6. a kind of driving circuit for pwm power control according to claim 4, which is characterized in that triode Q1,
Q3, Q5, Q7 are all made of SS8050 triodes, and triode Q2, Q4, Q6, Q8 are all made of SS8550 triodes.
7. a kind of driving circuit for pwm power control according to claim 1, which is characterized in that the exchange
Signal output apparatus includes that the collector of GB1, GB2, GB3, GB4 tetra- IGBT, GB1 connect diode D1 cathode, exchange letter respectively
Number AC_L_INPUT, diode D1 plus earths, GB1 emitters ground connection, GB1 gate poles meet diode D2 cathode, resistance R13 respectively
One end, diode D2 plus earths, resistance R13 other ends ground connection；The collector of GB2 meets diode D6 cathode, signal AC_ respectively
L_PWM, diode D6 plus earths, GB2 emitters ground connection, GB2 gate poles connect diode D3 cathode, the one end resistance R14 respectively, and two
Pole pipe D3 plus earths, resistance R14 other ends ground connection；The collector of GB3 meets diode D7 cathode, signal AC_L_PWM respectively,
Diode D7 plus earths, GB3 emitters ground connection, GB3 gate poles meet diode D4 cathode, the one end resistance R15, diode D4 respectively
Plus earth, resistance R15 other ends ground connection；The collector of GB4 meets diode D8 cathode, signal AC_N respectively, and diode D8 is just
Pole is grounded, and GB4 emitters ground connection, GB4 gate poles connect diode D5 cathode, the one end resistance R16 respectively, diode D5 plus earths,
The resistance R16 other ends are grounded；Diode D2 anodes connect zener diode Z1 cathode, zener diode Z1 anodes by resistance R10
Ground connection, zener diode Z1 cathode meet voltage Vdrv1 by resistance R5, and diode D4 anodes connect two pole of voltage stabilizing by resistance R11
Pipe Z2 cathode, zener diode Z2 plus earths, zener diode Z2 cathode meet voltage Vdrv2 by resistance R6.
8. a kind of driving circuit for pwm power control according to claim 7, which is characterized in that GB1, GB2,
The model of tetra- IGBT of GB3, GB4 is G60N100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178148.XA CN106488617B (en) | 2016-12-19 | 2016-12-19 | A kind of driving circuit for pwm power control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178148.XA CN106488617B (en) | 2016-12-19 | 2016-12-19 | A kind of driving circuit for pwm power control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106488617A CN106488617A (en) | 2017-03-08 |
| CN106488617B true CN106488617B (en) | 2018-09-07 |
Family
ID=58285379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178148.XA Active CN106488617B (en) | 2016-12-19 | 2016-12-19 | A kind of driving circuit for pwm power control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106488617B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206894941U (en) * | 2016-12-19 | 2018-01-16 | 山东金洲科瑞节能科技有限公司 | A kind of drive circuit for pwm power control |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2692953Y (en) * | 2002-05-27 | 2005-04-13 | 肖显望 | Microcomputer program-controlled illuminating device capable of turning on or off lamp nearby |
| US7291991B2 (en) * | 2005-10-13 | 2007-11-06 | Monolithic Power Systems, Inc. | Matrix inverter for driving multiple discharge lamps |
| JP5592613B2 (en) * | 2009-01-22 | 2014-09-17 | パナソニック株式会社 | Power supply device and lighting apparatus using the same |
| EP2410821B1 (en) * | 2010-07-20 | 2014-01-08 | Panasonic Corporation | Lighting device of semiconductor light-emitting element and illumination fixture using the same |
-
2016
- 2016-12-19 CN CN201611178148.XA patent/CN106488617B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206894941U (en) * | 2016-12-19 | 2018-01-16 | 山东金洲科瑞节能科技有限公司 | A kind of drive circuit for pwm power control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106488617A (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105790554B (en) | A kind of IGBT drive circuit and control method with dual resisteance | |
| CN106535390A (en) | Constant current driving power supply and display equipment | |
| CN205725438U (en) | A kind of IGBT drive circuit with dual resisteance | |
| CN201336746Y (en) | Constant current and voltage drive circuit for AC power supply LED | |
| CN106849704B (en) | Synchronous rectification interlock circuit | |
| CN106488617B (en) | A kind of driving circuit for pwm power control | |
| CN206894941U (en) | A kind of drive circuit for pwm power control | |
| CN203788258U (en) | Novel IGBT/MOSFET driving circuit | |
| CN208971472U (en) | The Array Control Circuit of intelligent photovoltaic power station analog meter | |
| CN104052351B (en) | Digital non-resistance constant current Digit Control Machine Tool motor singlephase drive device circuit | |
| CN204302420U (en) | A kind of switch quantity acquisition circuit | |
| CN203164279U (en) | Commercial power zero-crossing signal detection circuit | |
| CN106817804A (en) | A kind of driving power supply five in one dims circuit | |
| CN106487365B (en) | A kind of multi-channel PWM drive control circuit, drive control method and electrical household appliance | |
| CN202931628U (en) | Solar LED wireless control constant current integral controller | |
| CN204335073U (en) | A kind of multi-functional OLED driving power | |
| CN207664874U (en) | Appliances power source control device | |
| CN205491277U (en) | Dimmer circuit system | |
| CN108199446A (en) | Circuit and soft start equipment are protected in lithium battery trickle charge | |
| CN209710361U (en) | A kind of LED drive control circuit of tunable optical | |
| CN206850674U (en) | A kind of transmitted in both directions magnetic isolation feedback circuit | |
| CN206413224U (en) | A kind of driving power supply five in one dims circuit | |
| CN206301235U (en) | Alternating Current Power Supply quality regulator | |
| CN206878721U (en) | A kind of multi-level converter system | |
| CN202455604U (en) | Phase angle detection circuit, load driver and light source adjuster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170314 Address after: 250021 Ji'nan, Central District, Shandong City Road, the southern part of the shop No. 18 Applicant after: Shandong Jinzhou Kerui Energy Technology Co. Ltd. Address before: 250014 Ji'nan Province, Lixia District, Lixia District, Shandong Road, No. 14 Applicant before: Pei Yongjun |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |