CN107949109A - Efficient ultra-bright LED lamp drive circuit based on MC34063 - Google Patents
Efficient ultra-bright LED lamp drive circuit based on MC34063 Download PDFInfo
- Publication number
- CN107949109A CN107949109A CN201711199950.1A CN201711199950A CN107949109A CN 107949109 A CN107949109 A CN 107949109A CN 201711199950 A CN201711199950 A CN 201711199950A CN 107949109 A CN107949109 A CN 107949109A
- Authority
- CN
- China
- Prior art keywords
- resistance
- pin
- led lamp
- drive circuit
- voltage
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 12
- 241000500881 Lepisma Species 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007480 spreading 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The present invention provides a kind of efficient ultra-bright LED lamp drive circuit based on MC34063, including electrolytic capacitor C1, ceramic disc capacitor C2, electrolytic capacitor C3, electrolytic capacitor C4, diode 1N4148, NPN triode Q1, NPN triode Q2, inductance L1, adjustable precision voltage-stablizer TL431U1, DC/DC conversion chip MC34063 U2 in parallel, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, fuse FU1.Circuit of the present invention can provide 3.4 volts of stable voltages and up to 3 amps drive currents; up to 150 ultra-bright LEDs can be driven at the same time; therefore stable, reliable, sufficient light can be sent by this solar street light with effective guarantee; circuit of the present invention has that driving force is strong, efficient, ripple is small at the same time, with overcurrent, over-voltage protecting function and very strong damage-retardation, antijamming capability.
Description
Technical field
The present invention relates to a kind of efficient ultra-bright LED lamp drive circuit based on MC34063.
Background technology
At present, because meeting, the development of environmentally friendly idea of development solar LED street lamp, spreading speed are very fast, and various correlations are set
Standby development is very fast, for ultra-bright LED drive circuit, mainly there is two kinds of working methods at present：Mode one, using straight
Power supply mode is flowed to power directly to ultra-bright LED lamp；Mode two, by DC-AC-DC and then be supplied to ultra-bright LED lamp supply
Electricity.Mode one：Simple circuit, power supplying efficiency is high, but there is isolation, protection deficiency problem, if LED is damaged, or is subject to thunder
The impact of the disastrous environmental factor such as electricity, wind and rain, is easy to cause control board, battery damage.Mode two：Circuit is complicated,
Control plate bulk is big, and caloric value is big.Therefore exist and design a kind of succinct, stable, efficient high current ultra-bright LED drive circuit
Demand.
The content of the invention
The present invention is to solve the above-mentioned problems, there is provided a kind of efficient ultra-bright LED lamp driving electricity based on MC34063
Road.The module can quickly power to ultra-bright LED module, stable power-supplying；With overcurrent protection function；With isolation input end
And output terminal function；With very strong power supply capacity and power supplying efficiency, it can be to be provided with that need to only use 24V50Ah lead accumulators
More than when 150 ultra-bright LED power supplies 20 are small；, also can be just even if the highlighted LED of damage 3/4 with extremely strong LED module damage-retardation ability
Often work.
To achieve the above object, the technical solution adopted by the present invention is：It includes electrolytic capacitor C1, ceramic disc capacitor C2, electricity
Solve capacitance C3, electrolytic capacitor C4, diode 1N4148, NPN triode Q1, NPN triode Q2, inductance L1, adjustable precision in parallel
Voltage-stablizer TL431U1, DC/DC conversion chip MC34063 U2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance
R6, resistance R7, resistance R8, fuse FU1.It is provided with prime storage battery ,+24 volt voltages of the prime storage battery output,
By resistance R1, a cut-in voltage is provided to NPN type triode Q1 base stages, power supply moment NPN type triode Q1 turns on,
MC34063 U2（15）Pin 6 is quick to obtain electric work, and LED lamp panel is quick to be conducted.
The accurate voltage stabilizing electricity of the parallel connection adjustable precision voltage-stablizer TL431U1, electrolytic capacitor C1, resistance R2, resistance R3 compositions
Road, triode Q1 ends after booting moment, and+24 volt voltages of storage battery output are supplied to adjustable essence in parallel by resistance R1
Close voltage-stablizer TL431U1, regulator circuit are started to work, and are obtained according to formula Vo=(1+R2/R3) Vref, MC34063 U2 pins 6
To 10 volts of stable operating voltages, MC34062 U2 enter steady-working state；The ceramic disc capacitor C2 meets MC34063 U2 and draws
Foot 3 provides 84KHz stable oscillation stationary vibration ripples for chip；The resistance R7 is sampled supply current, and during steady operation, electric current exceedes
3.3 amperes, MC34063 U2 pins 7 receive trigger signal, and chip is stopped to be stopped into guard mode, output；The electricity
Hinder R5, resistance R8 understands output LED lamp panel voltage stabilization at 3.3 volts according to formula Uo=1.25 (1+R8/R5)；It is described
MC34062 U2 pins 2 are set according to peripheral circuit and feedback information, the adjustable square-wave signals of output duty cycle 20%-80%, with
NPN triode Q2, pull down resistor R4, diode 1N4148, inductance L1, electrolytic capacitor C3 collectively constitute reduction voltage circuit, realize 3.3
Lie prostrate voltage output；If the fuse FU1 output currents more than 3.3 amperes, if or anti-sink current be more than 3.3 amperes
Meeting protectiveness is burnt；The NPN triode Q2, if transmit instantaneous high pressure caused by various factors, Q2 emitter meetings from LED light
It is subject to high-pressure stop, so as to protect circuit major part and storage battery safety；The inductance L1, electrolytic capacitor C3 can absorb
LED lamp panel extinguishes the anti-sink current produced moment.
Further, the NPN type triode transistor Q1 base stages connect adjustable precision voltage-stablizer U1 pins 3 in parallel and resistance R
1 right end；The NPN type triode transistor Q1 collectors connecting resistance R1 left ends and 24V input terminals；The NPN type triode transistor
Q1 emitter connecting resistance R2 upper ends, electrolytic capacitor C4 cathodes, resistance R7 right ends, DC/DC conversion chip MC34063 U2 pins 6；
The parallel connection adjustable precision voltage-stablizer TL431U1 pins 1 connect electrolytic capacitor C1 cathodes, resistance R2 lower ends, resistance R3 upper ends；It is described
Adjustable precision voltage-stablizer TL431U1 pins 2 in parallel, resistance R4 lower ends, ceramic disc capacitor C2 lower ends, R5 and DC/DC conversion chips
MC34063 U2 pins 4 are grounded；The NPN type triode transistor Q2 base stage connecting resistance R4 upper ends, DC/DC conversion chips
MC34063 U2 pins 2；The NPN type triode transistor Q2 collector connecting resistance R6 right ends, resistance R7 left ends, and DC/DC
Conversion chip MC34063 U2 pins 1 and pin 7；The NPN type triode transistor Q2 emitters connect diode 1N4148 anode,
Inductance L1 left ends；The fuse FU1 left ends meet inductance L1 right ends, electrolytic capacitor C3 cathodes, resistance R8（18）Right end；The guarantor
Dangerous silk FU1 right ends connect LED lamp panel；The DC/DC conversion chips MC34063 U2（15）Pin 3 meets ceramic disc capacitor C2（14）On
End；The 5 connecting resistance R5 upper ends of DC/DC conversion chips MC34063 U2 pins, resistance R8 left ends；The DC/DC conversion chips
8 connecting resistance R6 left ends of MC34063 U2 pins.
Triode transistor Q1, Q2 model 2N6037.
The model 1N4148 of the diode D1.
The model TL431 of the parallel connection adjustable precision voltage-stablizer U1.
The model MC34063 of the DC/DC conversion chips MC34063 U2.
± 1% precision resister of model precision of the resistance R7.
The model blowout current of the fuse FU1 is 3.5A, the slicker solder material fuse of 0.559 millimeter of diameter.
The 150 μ H of model of the inductance L1, line is around inductance.
The invention has the advantages that：Circuit of the present invention can provide 3.4 volts of stable voltages and up to 3A driving electricity
Stream, can drive up to 150 ultra-bright LEDs at the same time, therefore can be sent and stablized with effective guarantee solar street light, is reliable, filled
The light of foot；Circuit of the present invention has overcurrent, over-voltage protecting function and very strong damage-retardation ability at the same time, can lift storage battery
Service life；At the same time circuit of the present invention because work efficiency height, the storage battery compared with low capacity can be selected, thus reduce use into
This.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is electrical block diagram of the present invention.
Fig. 2 is present invention power supply lamp plate circuit diagram.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, the efficient ultra-bright LED lamp drive circuit based on MC34063, including electrolytic capacitor C1（6）, tile
Capacitance C2（14）, electrolytic capacitor C3（9）, electrolytic capacitor C4（10）, diode 1N4148（8）, NPN triode Q1（2）, NPN tri-
Pole pipe Q2（12）, inductance L1（4）, adjustable precision voltage-stablizer TL431U1 in parallel（11）, DC/DC conversion chip MC34063 U2
（15）, resistance R1（1）, resistance R2（3）, resistance R3（7）, resistance R4（13）, resistance R5（19）, resistance R6（16）, resistance R7
（17）, resistance R8（18）, fuse FU1（5）.The triode transistor Q2（9）Base stage meets U1（10）Pin 1；The NPN type three
Gated transistors Q1（2）Base stage meets adjustable precision voltage-stablizer U1 in parallel（11）Pin 3 and resistance R1（1）Right end；The NPN type three
Gated transistors Q1（2）Collector connecting resistance R1（1）Left end and 24V input terminals；The NPN type triode transistor Q1（2）Emitter
Connecting resistance R2（3）Upper end, electrolytic capacitor C4（10）Cathode, resistance R7（17）Right end, DC/DC conversion chip MC34063 U2（15）
Pin 6；The parallel connection adjustable precision voltage-stablizer TL431U1（11）Pin 1 meets electrolytic capacitor C1（6）Cathode, resistance R2（3）Under
End, resistance R3（7）Upper end；The parallel connection adjustable precision voltage-stablizer TL431U1（11）Pin 2, resistance R4（13）Lower end, tile electricity
Hold C2（14）Lower end, R5（19）With DC/DC conversion chip MC34063 U2（15）Pin 4 is grounded；Three polar crystal of NPN type
Pipe Q2（12）Base stage connecting resistance R4（13）Upper end, DC/DC conversion chip MC34063 U2（15）Pin 2；The NPN type three is extremely brilliant
Body pipe Q2（12）Collector connecting resistance R6（16）Right end, resistance R7（17）Left end, and DC/DC conversion chip MC34063 U2
（15）Pin 1 and pin 7；The NPN type triode transistor Q2（12）Emitter meets diode 1N4148（8）Anode, inductance L1
（4）Left end；The fuse FU1（5）Left end meets inductance L1（4）Right end, electrolytic capacitor C3（9）Cathode, resistance R8（18）Right end；
The fuse FU1（5）LED lamp panel shown in right end map interlinking 2；The DC/DC conversion chips MC34063 U2（15）Pin 3 connects porcelain
Chip capacitor C2（14）Upper end；The DC/DC conversion chips MC34063 U2（15）5 connecting resistance R5 of pin（19）Upper end, resistance R8
（18）Left end；The DC/DC conversion chips MC34063 U2（15）8 connecting resistance R6 of pin（16）Left end.The triode transistor
Q1（2）、Q2（12）Model 2N6037.The diode D1（8）Model 1N4148.The parallel connection adjustable precision voltage-stablizer
U1（11）Model TL431.The DC/DC conversion chips MC34063 U2（15）Model MC34063.The resistance R7
（17）± 2% precision resister of model precision.
The fuse FU1（5）Model blowout current be 3.5A, the slicker solder material insurance of 0.559 millimeter of diameter
Silk.The inductance L1（4）150 μ H of model, line is around inductance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (9)
1. the efficient ultra-bright LED lamp drive circuit based on MC34063 is characterized in that：Including electrolytic capacitor C1（6）, tile electricity
Hold C2（14）, electrolytic capacitor C3（9）, electrolytic capacitor C4（10）, diode 1N4148（8）, NPN triode Q1（2）, tri- poles of NPN
Pipe Q2（12）, inductance L1（4）, adjustable precision voltage-stablizer TL431U1 in parallel（11）, DC/DC conversion chip MC34063 U2（15）、
Resistance R1（1）, resistance R2（3）, resistance R3（7）, resistance R4（13）, resistance R5（19）, resistance R6（16）, resistance R7（17）, electricity
Hinder R8（18）, fuse FU1（5）；
The NPN type triode transistor Q1（2）Base stage meets adjustable precision voltage-stablizer U1 in parallel（11）Pin 3 and resistance R1（1）It is right
End；The NPN type triode transistor Q1（2）Collector connecting resistance R1（1）Left end and 24V input terminals；The NPN type three is extremely brilliant
Body pipe Q1（2）Emitter connecting resistance R2（3）Upper end, electrolytic capacitor C4（10）Cathode, resistance R7（17）Right end, DC/DC conversion cores
Piece MC34063 U2（15）Pin 6；The parallel connection adjustable precision voltage-stablizer TL431U1（11）Pin 1 meets electrolytic capacitor C1（6）Just
Pole, resistance R2（3）Lower end, resistance R3（7）Upper end；The parallel connection adjustable precision voltage-stablizer TL431U1（11）Pin 2, resistance R4
（13）Lower end, ceramic disc capacitor C2（14）Lower end, R5（19）With DC/DC conversion chip MC34063 U2（15）Pin 4 is grounded；Institute
State NPN type triode transistor Q2（12）Base stage connecting resistance R4（13）Upper end, DC/DC conversion chip MC34063 U2（15）Pin 2；
The NPN type triode transistor Q2（12）Collector connecting resistance R6（16）Right end, resistance R7（17）Left end, and DC/DC conversions
Chip MC34063 U2（15）Pin 1 and pin 7；The NPN type triode transistor Q2（12）Emitter meets diode 1N4148
（8）Anode, inductance L1（4）Left end；The fuse FU1（5）Left end meets inductance L1（4）Right end, electrolytic capacitor C3（9）Cathode,
Resistance R8（18）Right end；The fuse FU1（5）Right end connects LED lamp panel；The DC/DC conversion chips MC34063 U2（15）
Pin 3 meets ceramic disc capacitor C2（14）Upper end；The DC/DC conversion chips MC34063 U2（15）5 connecting resistance R5 of pin（19）On
End, resistance R8（18）Left end；The DC/DC conversion chips MC34063 U2（15）8 connecting resistance R6 of pin（16）Left end；It is provided with
Prime storage battery ,+24 volt voltages of prime storage battery output, by resistance R1（1）, give NPN type triode Q1（2）Base stage provides
One cut-in voltage, powers moment NPN type triode Q1（2）Conducting, MC34063 U2（15）Pin 6 is quick to obtain electric work,
LED lamp panel is quick to be conducted.
2. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is described
Adjustable precision voltage-stablizer TL431U1 in parallel（11）, electrolytic capacitor C1（6）, resistance R2（3）, resistance R3（7）The accurate voltage stabilizing electricity of composition
Road, the triode Q1 after booting moment（2）Cut-off ,+24 volt voltages of storage battery output pass through resistance R1（1）It is supplied to parallel connection
Adjustable precision voltage-stablizer TL431U1（11）, regulator circuit is started to work, according to formula Vo=(1+R2/R3) Vref, MC34063
U2（15）Pin 6 obtains 10 volts of operating voltages of stabilization, MC34062 U2（15）Into steady-working state；The ceramic disc capacitor
C2（14）Meet MC34063 U2（15）Pin 3 provides 84KHz stable oscillation stationary vibration ripples for chip；The resistance R7（17）To supply current
It is sampled, during steady operation, electric current is more than 3.3 amperes, MC34063 U2（15）Pin 7 receives trigger signal, and chip stops
Work enters guard mode, and output stops；The resistance R5（19）, resistance R8（18）Can be by output to LED lamp panel voltage stabilization
At 3.3 volts；The MC34062 U2（15）Pin 2 is set according to peripheral circuit and feedback information, and output duty cycle 20%-80% can
The square-wave signal of tune, with NPN triode Q2（12）, pull down resistor R4（13）, diode 1N4148（8）, inductance L1（4）, electrolysis
Capacitance C3（9）Reduction voltage circuit is collectively constituted, realizes 3.3 volts of voltage outputs；The fuse FU1（5）In output current more than 3.3
Ampere or anti-sink current be more than 3.3 amperes can protectiveness burn；The NPN triode Q2（12）LED light because it is various because
Instantaneous high pressure causes Q2 caused by element（12）Emitter voltage more than 9.3 volts in the state of can end；The inductance L1（4）, electricity
Solve capacitance C3（9）The anti-sink current that LED lamp panel is extinguished moment and produced can be absorbed.
3. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：Three poles
Transistor Q1（2）、Q2（12）Model 2N6037.
4. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：Two poles
Pipe D1（8）Model 1N4148.
5. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is in parallel
Adjustable precision voltage-stablizer U1（11）Model TL431.
6. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is described
DC/DC conversion chip MC34063 U2（15）Model MC34063.
7. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is described
Resistance R7（17）± 2% precision resister of model precision.
8. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is described
Fuse FU1（5）Model blowout current be 3.5A, the slicker solder material fuse of 0.559 millimeter of diameter.
9. the efficient ultra-bright LED lamp drive circuit according to claim 1 based on MC34063 is characterized in that：It is described
Inductance L1（4）150 μ H of model, line is around inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711199950.1A CN107949109A (en) | 2017-11-27 | 2017-11-27 | Efficient ultra-bright LED lamp drive circuit based on MC34063 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711199950.1A CN107949109A (en) | 2017-11-27 | 2017-11-27 | Efficient ultra-bright LED lamp drive circuit based on MC34063 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107949109A true CN107949109A (en) | 2018-04-20 |
Family
ID=61948856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711199950.1A Pending CN107949109A (en) | 2017-11-27 | 2017-11-27 | Efficient ultra-bright LED lamp drive circuit based on MC34063 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107949109A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765275A (en) * | 2010-01-29 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED drive circuit and LED lamp |
| CN201937925U (en) * | 2011-01-24 | 2011-08-17 | 河海大学常州校区 | LED constant current driver with function of voltage reduction |
| US20150156830A1 (en) * | 2013-12-04 | 2015-06-04 | Ningbo Self Electronics Co., Ltd. | Power Supply Circuit for LED Lamp |
| CN204634118U (en) * | 2015-05-25 | 2015-09-09 | 常州信息职业技术学院 | The indoor Dimmable LED lighting device of a kind of city bus |
| CN105451415A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Vehicle-mounted LED rhythmic lamp circuit |
| CN205320334U (en) * | 2016-01-13 | 2016-06-15 | 云南师范大学 | But speech recognition's LED electricity -saving lamp dimmer circuit |
| CN207612442U (en) * | 2017-11-27 | 2018-07-13 | 昆明理工大学津桥学院 | LED lamp drive circuit based on MC34063 |
-
2017
- 2017-11-27 CN CN201711199950.1A patent/CN107949109A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765275A (en) * | 2010-01-29 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED drive circuit and LED lamp |
| CN201937925U (en) * | 2011-01-24 | 2011-08-17 | 河海大学常州校区 | LED constant current driver with function of voltage reduction |
| US20150156830A1 (en) * | 2013-12-04 | 2015-06-04 | Ningbo Self Electronics Co., Ltd. | Power Supply Circuit for LED Lamp |
| CN204634118U (en) * | 2015-05-25 | 2015-09-09 | 常州信息职业技术学院 | The indoor Dimmable LED lighting device of a kind of city bus |
| CN105451415A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Vehicle-mounted LED rhythmic lamp circuit |
| CN205320334U (en) * | 2016-01-13 | 2016-06-15 | 云南师范大学 | But speech recognition's LED electricity -saving lamp dimmer circuit |
| CN207612442U (en) * | 2017-11-27 | 2018-07-13 | 昆明理工大学津桥学院 | LED lamp drive circuit based on MC34063 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7729139B2 (en) | Current source inverter with energy clamp circuit and controlling method thereof having relatively better effectiveness | |
| CN201001217Y (en) | LED driving power supply | |
| CN103269548A (en) | LED drive circuit system, controller and control method | |
| CN202633914U (en) | Overvoltage protecting circuit of output electrolytic capacitor of active PFC (Power Factor Correction) circuit and switching power supply | |
| CN104768265A (en) | High-power LED constant-current driving circuit | |
| CN101621877A (en) | Current feed circuit and current control circuit of light emitting diode | |
| CN201127137Y (en) | High-power LED drive circuit | |
| CN101827488A (en) | Fluorescent lamp electronic ballast and lighting device | |
| JP2015053225A (en) | Led drive circuit | |
| CN207612442U (en) | LED lamp drive circuit based on MC34063 | |
| CN107332336A (en) | A kind of communication apparatus voltage stabilizing charger circuit | |
| CN203398768U (en) | Low-cost AC input overvoltage protection circuit and switching power supply | |
| CN105101556A (en) | LED dimming driving circuit | |
| CN102820784B (en) | BJT (bipolar junction transistor)-type auto-excitation Buck converter with small main switching tube driving loss | |
| CN104426377A (en) | Wide-input voltage flyback-type switch power supply applicable to drive of direct-current motor | |
| CN203775499U (en) | LED (light-emitting diode) pulse drive circuit | |
| CN202333942U (en) | Charging circuit | |
| CN104184205A (en) | Power switching circuit and lighting equipment | |
| CN107949109A (en) | Efficient ultra-bright LED lamp drive circuit based on MC34063 | |
| CN103857109B (en) | A kind of constant-current voltage-stabilizing drive circuit and light fixture | |
| CN201191807Y (en) | Electric power circuit special for brushless motor controller | |
| CN102752895B (en) | Capacitance voltage-reduction LED (light emitting diode) lighting device with constant current, constant voltage and protection functions | |
| CN201256072Y (en) | Single tube switch power supply for self-coupling switch transformer | |
| CN203279299U (en) | Led drive circuit system and controller | |
| CN204391814U (en) | The power module of satellite communication and the Big Dipper emergency command case with power module |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180420 |
|
| WD01 | Invention patent application deemed withdrawn after publication |