CN105007670A - Constant-voltage constant-current LED bulb light driver - Google Patents
Constant-voltage constant-current LED bulb light driver Download PDFInfo
- Publication number
- CN105007670A CN105007670A CN201510482443.3A CN201510482443A CN105007670A CN 105007670 A CN105007670 A CN 105007670A CN 201510482443 A CN201510482443 A CN 201510482443A CN 105007670 A CN105007670 A CN 105007670A
- Authority
- CN
- China
- Prior art keywords
- constant
- voltage
- circuit
- led bulb
- bulb light
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a constant-voltage constant-current LED bulb light driver. A constant current characteristic of a capacitance-resistance voltage reduction circuit is used for providing constant currents for the LED; and a high-input-voltage three-end input circuit is used for providing constant output voltages for the LED. Therefore, the LED bulb light has the constant-voltage constant-current operating characteristic, thereby guaranteeing the durability of the LED bulb light.
Description
Technical field
The present invention relates to a kind of LEDbulb lamp driver of constant pressure and flow.
Background technology
Current LEDbulb lamp is all the driving power adopting resistance-capacitance depressurization or pulse constant current formula, and the defect of these driving powers is that circuit forms complexity, and electronic component used is many, causes failure rate to occur many; Be again the resistive element of driver with a lot of power consumptions, the electric energy that loss is certain, reduces the fractional energy savings of LEDbulb lamp.
Summary of the invention
The LEDbulb lamp driver of a kind of constant pressure and flow of the present invention, disclose and a kind of there is the LEDbulb lamp driver that constant voltage has again constant current function of supplying power, its electronic component structure used is simple, only use the electronic component that a consumption rate is very little, the electric energy that light fixture is absorbed from power supply turns to luminous energy to greatest extent, improves the electricity-saving rate of LED.
A LEDbulb lamp for constant pressure and flow, its circuit composition is inputted three-terminal voltage-stabilizing circuit formed by capacitance-resistance voltage reduction circuit, current rectifying and wave filtering circuit, high voltage.
Accompanying drawing explanation
Accompanying drawing is a kind of circuit theory diagrams of LEDbulb lamp driver of constant pressure and flow.
Embodiment
As shown in drawings, R1, C1 are capacitance-resistance voltage reduction circuits, and C1 is electric capacity of the dacron, withstand voltage more than 400V.R1 is bleeder resistor, and resistance is very large, and power is very little.Capacitance-resistance voltage reduction circuit is utilized to have the function of constant current-supplying, with the electric current supply LED working power of constant current.B is single-phase bridge rectifier, the alternating current after step-down is become the direct current of pulsation.Inductance L, electric capacity C2 form compound filter circuit, and an effect direct current of pulsation is become smoother direct current give next stage circuit; Another effect is the characteristic utilizing the reactive power of inductance and electric capacity mutually to change, and improves the power factor of LEDbulb lamp.
As shown in drawings, IC and peripheral circuit composition high voltage input three-terminal voltage-stabilizing circuit, wherein R3, D1, D2, T1, T2 composition series connection reduction voltage circuit, when D1, D2 select both-end pressurizer, when voltage is 12V, can step-down 24V.The setting of IC input just can be met after step-down; T1, T2 form compound amplifying triode, and its effect is the amplification coefficient improving triode; IC selects the three terminal regulator of 7824, and it is working power that the 24V voltage of stable output gives LED.C3, C4, C5 are filtering electric capacity, and its effect improves galvanic quality.D3 is model is IN4007 rectifier diode, plays buck functionality in circuit, ensures that the operating voltage of LED is no more than rated value.
Claims (3)
1. a LEDbulb lamp driver for constant pressure and flow, its circuit composition holds reduction voltage circuit by group and high input voltage voltage stabilizing circuit forms.
2. the LEDbulb lamp driver of a kind of constant pressure and flow according to claim 1, is characterized in that: high input voltage three-terminal voltage-stabilizing circuit is made up of IC and peripheral circuit, IC select model be 7824,7824 output be connected in series a rectifier diode IN4007.
3. the LEDbulb lamp driver of a kind of constant pressure and flow according to claim 2, it is characterized in that: the series winding reduction voltage circuit that the input of high input voltage three-terminal voltage-stabilizing circuit is made up of D1, D2, T1, T2, R3, D1, D2 select IN4007, and T1, T2 select S8050.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510482443.3A CN105007670A (en) | 2015-08-08 | 2015-08-08 | Constant-voltage constant-current LED bulb light driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510482443.3A CN105007670A (en) | 2015-08-08 | 2015-08-08 | Constant-voltage constant-current LED bulb light driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105007670A true CN105007670A (en) | 2015-10-28 |
Family
ID=54380129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510482443.3A Pending CN105007670A (en) | 2015-08-08 | 2015-08-08 | Constant-voltage constant-current LED bulb light driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105007670A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361274A (en) * | 1980-09-08 | 1982-11-30 | Teledyne Industries, Inc. | Electronic temperature control |
| CN102438378A (en) * | 2011-12-20 | 2012-05-02 | 江苏宏微科技有限公司 | LED (Light Emitting Diode) illumination intelligent control system |
| CN102612226A (en) * | 2012-03-06 | 2012-07-25 | 张磊 | LED (light emitting diode) energy-saving lamp with driver |
| CN103068097A (en) * | 2011-10-24 | 2013-04-24 | 黄焕珠 | Light-emitting diode (LED) illuminating lamp radiating through neutralization of cold and heat |
| CN204119071U (en) * | 2014-09-28 | 2015-01-21 | 江西久鹰照明电器有限公司 | A kind of simple and easy LED constant current source of energy Antisurge current |
-
2015
- 2015-08-08 CN CN201510482443.3A patent/CN105007670A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361274A (en) * | 1980-09-08 | 1982-11-30 | Teledyne Industries, Inc. | Electronic temperature control |
| CN103068097A (en) * | 2011-10-24 | 2013-04-24 | 黄焕珠 | Light-emitting diode (LED) illuminating lamp radiating through neutralization of cold and heat |
| CN102438378A (en) * | 2011-12-20 | 2012-05-02 | 江苏宏微科技有限公司 | LED (Light Emitting Diode) illumination intelligent control system |
| CN102612226A (en) * | 2012-03-06 | 2012-07-25 | 张磊 | LED (light emitting diode) energy-saving lamp with driver |
| CN204119071U (en) * | 2014-09-28 | 2015-01-21 | 江西久鹰照明电器有限公司 | A kind of simple and easy LED constant current source of energy Antisurge current |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203884016U (en) | Constant-current LED drive circuit with function of light-adjusting control | |
| US9301352B2 (en) | Method and circuit for driving an LED load with phase-cut dimmers | |
| JP2014520366A5 (en) | ||
| CN103929851A (en) | LED circuit with dimming function and color matching function | |
| EP2603057A3 (en) | Lighting apparatus and illuminating fixture with the same | |
| CN203608412U (en) | An LED lamp driving power supply employing optical coupler feedback control | |
| CN201821554U (en) | LED energy-saving lamp driving circuit | |
| CN204031554U (en) | A kind of LED constant current driving power circuit | |
| CN201893981U (en) | Light-emitting diode (LED) spotlight drive circuit | |
| CN101754538A (en) | Adjustable photocontrol circuit of LED (light-emitting diode) lamp | |
| CN203827567U (en) | Light-and-color-adjustable LED circuit | |
| CN105007670A (en) | Constant-voltage constant-current LED bulb light driver | |
| CN105142267A (en) | Constant-voltage and constant-current light-emitting diode (LED) bulb lamp | |
| CN201919222U (en) | Led driver | |
| CN203912269U (en) | Self-excited TRIAC dimming circuit | |
| CN105744681A (en) | Method and connection line driver for saving electric energy of light emitting diode (LED) streetlamp by 50% again | |
| CN207652724U (en) | A kind of lamps and lanterns with fan | |
| CN104735867A (en) | Novel LED illuminating lamp driver adopting constant-current-source driving | |
| CN202617427U (en) | Low-voltage direct-current centralized power supply light emitting diode (LED) constant-current source linear dimming circuit | |
| CN105407603A (en) | Long-lifetime LED drive circuit | |
| CN202310223U (en) | Stable-sampling-voltage LED (light-emitting diode) constant-current drive power source | |
| CN203840607U (en) | Circuit for solving problem of LED back flashing of miniwatt BUCK circuit | |
| CN202652622U (en) | Driving power supply used for 3-watt LED light fixture | |
| CN102510635B (en) | Lighting LED constant-current source IC | |
| CN203851349U (en) | Voltage-reducing and current-stabilizing circuit based on chip BP2833A |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |
|
| WD01 | Invention patent application deemed withdrawn after publication |