CN202077247U - Illumination drive power supply for Light-emitting diode (LED) streetlamp - Google Patents
Illumination drive power supply for Light-emitting diode (LED) streetlamp Download PDFInfo
- Publication number
- CN202077247U CN202077247U CN201120207877XU CN201120207877U CN202077247U CN 202077247 U CN202077247 U CN 202077247U CN 201120207877X U CN201120207877X U CN 201120207877XU CN 201120207877 U CN201120207877 U CN 201120207877U CN 202077247 U CN202077247 U CN 202077247U
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- circuit
- led
- pfc
- power supply
- constant
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- 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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to an illumination drive power supply for a light-emitting diode (LED) streetlamp, which is used for supplying power to the LED streetlamp. The circuit of the drive power supply consists of an electromagnetic interference filter (1), a surge protection circuit (2), a bridge rectifier filter circuit (3), a power factor correction (PFC) circuit (4), a direct-current to direct-current (DC-DC) converter (5) and a constant-current driver (6) which are sequentially and serially connected with each other, wherein the PFC circuit (4) is connected with protection circuit (4.1) and a PFC control circuit (4.2), and the constant-current driver (6) is connected with a dimming control circuit (7). The illumination drive power supply of the LED streetlamp has the characteristics of simple structure, electromagnetic interference resistance, surge protection, high power factor and constant current.
Description
Technical field
The utility model relates to a kind of power circuit, especially relates to a kind of illumination driving power circuit that the LED street lamp is powered of being used for.
Background technology
Because LED has advantages such as high brightness, long-life, the lighting circuit that is made of LED is used more widely gradually.Therefore the development of LED Lighting Industry is rapid, and the LED street lamp is one of them important applied field.Compare with common street lamp, the LED street lamp has long, characteristics such as shock resistance good, efficient energy-saving, environment friendly and pollution-free, good looking appearance, security reliability height of life-span, belongs to real green illumination light source.But these advantages of the LED street lamp of comparing contain that the unreliable and power factor that its bottleneck of promoting fast is exactly its driving power is low.Power supply in the market, generally have the electromagnetic interference of electrical network, power factor lower, do not have characteristics such as antisurge protection, constant current, be unfavorable for using and promoting of LED street lamp.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of simple in structure, LED street lighting driving power that can suppress electromagnetic interference, antisurge protection, High Power Factor, constant current is provided.
The purpose of this utility model is achieved in that a kind of LED street lighting driving power; the circuit of described driving power is in series successively by electromagnetic interface filter, antisurge protective circuit, bridge rectifier filter circuit, PFC power factor correction circuit, DC-DC transducer and constant-flow driver, is connected with protective circuit and PFC control circuit on the described PFC power factor correction circuit.
A kind of LED street lighting of the utility model driving power is connected with adjusting control circuit on the described constant-flow driver.
Compared with prior art, the beneficial effects of the utility model are:
(1) owing to used electromagnetic interface filter, can prevent electromagnetic interference effectively;
(2) owing to added the PFC circuit of power factor correction in the utility model power circuit, improved the power factor of system;
(3) adopt the antisurge protective circuit, suppressed of the impact of the surge phenomenon of start moment effectively, and can play the effect of anti-thunderbolt the LED street lamp;
(4) design of the constant-current circuit electric current that makes the LED street lamp obtain is constant, has guaranteed the brightness stability of LED street lamp, and not fragile;
(5) adjusting control circuit makes the LED street lamp enter half-power work after entering the late into the night, energy-conservation environmental protection again.
Description of drawings
Fig. 1 is the circuit block diagram of a kind of LED street lighting of the utility model driving power.
Wherein:
Electromagnetic interface filter 1, antisurge protective circuit 2, bridge rectifier filter circuit 3, PFC power factor correction circuit 4, DC-DC transducer 5, constant-flow driver 6, adjusting control circuit 7, LED load 8;
Protective circuit 4.1, PFC control circuit 4.2.
Embodiment
Referring to Fig. 1; a kind of LED street lighting driving power that the utility model relates to; the circuit of described power supply is in series successively by electromagnetic interface filter 1, antisurge protective circuit 2, bridge rectifier filter circuit 3, PFC power factor correction circuit 4, DC-DC transducer 5 and constant-flow driver 6; be connected with protective circuit 4.1 and PFC control circuit 4.2 on the described PFC power factor correction circuit 4, be connected with adjusting control circuit 7 on the described constant-flow driver 6.
During use: electric main is earlier through electromagnetic interface filter 1 filtering; again through obtaining a direct voltage after by the bridge rectifier rectification of bridge rectifier filter circuit 3, capacitor filtering after the antisurge protective circuit 2; improve the power factor of system again through PFC power factor correction circuit 4; import DC-DC transducer 5 then and obtain a galvanic current pressure, its magnitude of voltage is controlled by PWM.In order to make the led light source brightness stability, the d. c. voltage signal that obtains noted earlier to be delivered in the constant-flow driver 6, the constant current that output meets the demands is delivered to 8 pairs of LED street lamps of LED load and is powered.In order further to implement the aim of energy-conserving and environment-protective, also added in the utility model power circuit by monolithic processor controlled adjusting control circuit 7, after arriving the late into the night, the operation that automatically electric current reduced by half to realize the work of LED street lamp half-power, realizes energy-saving effect.
Claims (2)
1. LED street lighting driving power; it is characterized in that: the circuit of described driving power is in series successively by electromagnetic interface filter (1), antisurge protective circuit (2), bridge rectifier filter circuit (3), PFC power factor correction circuit (4), DC-DC transducer (5) and constant-flow driver (6), is connected with protective circuit (4.1) and PFC control circuit (4.2) on the described PFC power factor correction circuit (4).
2. a kind of according to claim 1 LED street lighting driving power is characterized in that: be connected with adjusting control circuit (7) on the described constant-flow driver (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207877XU CN202077247U (en) | 2011-06-20 | 2011-06-20 | Illumination drive power supply for Light-emitting diode (LED) streetlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207877XU CN202077247U (en) | 2011-06-20 | 2011-06-20 | Illumination drive power supply for Light-emitting diode (LED) streetlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202077247U true CN202077247U (en) | 2011-12-14 |
Family
ID=45115321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120207877XU Expired - Fee Related CN202077247U (en) | 2011-06-20 | 2011-06-20 | Illumination drive power supply for Light-emitting diode (LED) streetlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202077247U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625543A (en) * | 2012-04-13 | 2012-08-01 | 汕头市南帆电器有限公司 | Light-emitting diode (LED) power supply |
| CN103391669A (en) * | 2013-07-02 | 2013-11-13 | 深圳桑达百利电器有限公司 | LED (light emitting diode) lamp lighting system |
| CN103547023A (en) * | 2012-07-13 | 2014-01-29 | 廖顺安 | Low-temperature LED lighting power supply device |
| CN104159379A (en) * | 2014-08-28 | 2014-11-19 | 佛山冠今光电科技有限公司 | Driving power source for smart LED bulb |
| TWI783536B (en) * | 2021-06-21 | 2022-11-11 | 群光電能科技股份有限公司 | Power supply with lightning protection |
-
2011
- 2011-06-20 CN CN201120207877XU patent/CN202077247U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625543A (en) * | 2012-04-13 | 2012-08-01 | 汕头市南帆电器有限公司 | Light-emitting diode (LED) power supply |
| CN103547023A (en) * | 2012-07-13 | 2014-01-29 | 廖顺安 | Low-temperature LED lighting power supply device |
| CN103547023B (en) * | 2012-07-13 | 2016-01-20 | 廖顺安 | Low-temperature LED lighting power supply device |
| CN103391669A (en) * | 2013-07-02 | 2013-11-13 | 深圳桑达百利电器有限公司 | LED (light emitting diode) lamp lighting system |
| CN104159379A (en) * | 2014-08-28 | 2014-11-19 | 佛山冠今光电科技有限公司 | Driving power source for smart LED bulb |
| TWI783536B (en) * | 2021-06-21 | 2022-11-11 | 群光電能科技股份有限公司 | Power supply with lightning protection |
| US11682965B2 (en) | 2021-06-21 | 2023-06-20 | Chicony Power Technology Co., Ltd | Power supply with lightning protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120620 |