CN202514132U - 一种led调光电源 - Google Patents

一种led调光电源 Download PDF

Info

Publication number
CN202514132U
CN202514132U CN 201220125241 CN201220125241U CN202514132U CN 202514132 U CN202514132 U CN 202514132U CN 201220125241 CN201220125241 CN 201220125241 CN 201220125241 U CN201220125241 U CN 201220125241U CN 202514132 U CN202514132 U CN 202514132U
Authority
CN
China
Prior art keywords
circuit
power supply
output
drive
led 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.)
Expired - Fee Related
Application number
CN 201220125241
Other languages
English (en)
Inventor
姚涛
罗道振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongheng Quanhua network technology (Hainan) Co., Ltd
Original Assignee
WUHAN QUANHUA PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUHAN QUANHUA PHOTOELECTRIC TECHNOLOGY Co Ltd filed Critical WUHAN QUANHUA PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority to CN 201220125241 priority Critical patent/CN202514132U/zh
Application granted granted Critical
Publication of CN202514132U publication Critical patent/CN202514132U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)

Abstract

本实用新型公开种LED调光电源,该调光电源的输入浪涌保护电路输入接市电,EMI滤波电路连接至桥式整流电路;桥式整流电路的输出连接至DC/DC隔离变换电路的同时也通过电阻降压连接至IC驱动控制电路去控制DC/DC隔离变换电路;DC/DC隔离变换电路的输出通过输出电流检测电路连接至LED光源;输出电流检测电路和精密延时感光器通过反馈电路连接至IC驱动控制电路。本实用新型的优点在于:本实用新型使用了长寿命、低损耗的薄膜电容代替了输入的电解电容,以提高电源的工作寿命;同时利用功率因数校正技术,使电源的功率因数高达0.99,效率高达90%,高精度的感光器接入反馈电路可控制输出电流,从而达到了真正的环保、节能。

Description

一种LED调光电源
技术领域
本实用新型涉及一种电源,尤其是一种LED调光电源。
背景技术
在国家大力倡导节能减排的今天,以LED作为光源的第四代照明灯具成为了国家重点扶持项目。目前的LED光源是低电压(VF=2-3.6V)工作的半导体器件,必须提供合适的直流才能正常发光,由于我们日常照明使用的电源是高压交流(AC 85~265V),必须将交流变换成直流的电装置,即LED驱动电源。
发明内容
本实用新型的目的在于提供一种LED调光电源,该电源在一定的外界照度范围内可实现时时的智能调光,不需要人为控制。达到节能的同时也提高了照明的质量。
本实用新型的技术方案:一种LED调光电源,该调光电源包括输入浪涌保护电路、EMI滤波电路、桥式整流电路、IC驱动控制电路、DC/DC(直流转直流电源)隔离变换电路、精密延时感光器、输出电流检测电路、反馈电路;输入浪涌保护电路输入接市电,其输出端通过EMI滤波电路连接至桥式整流电路;桥式整流电路的输出连接至DC/DC隔离变换电路的同时也通过电阻降压连接至IC驱动控制电路去控制DC/DC隔离变换电路;DC/DC隔离变换电路的输出通过输出电流检测电路连接至LED光源;输出电流检测电路和精密延时感光器通过反馈电路连接至IC驱动控制电路。
本实用新型的优点在于:本实用新型使用了长寿命、低损耗的薄膜电容代替了输入的电解电容,以提高电源的工作寿命;同时利用功率因数校正技术,使电源的功率因数高达0.99,效率高达90%,高精度的感光器接入反馈电路可控制输出电流,从而达到了真正的环保、节能。 
附图说明
图1为本实用新型一种LED调光电源电路原理图。
具体实施方式
一种LED调光电源,该调光电源包括输入浪涌保护电路1、EMI滤波电路2、桥式整流电路3、IC驱动控制电路4、DC/DC隔离变换电路5、精密延时感光器6、输出电流检测电路7、反馈电路8;输入浪涌保护电路1输入接市电,其输出端通过EMI滤波电路2连接至桥式整流电路3;桥式整流电路3的输出连接至DC/DC隔离变换电路5的同时也通过电阻降压连接至IC驱动控制电路4去控制DC/DC隔离变换电路5;DC/DC隔离变换电路5的输出通过输出电流检测电路7连接至LED光源;输出电流检测电路7和精密延时感光器6通过反馈电路连接至IC驱动控制电路4。 
 LED调光电源通过精密延时感光器时时的感应外界照度,从而在一定范围内控制输出恒流电流值。
当输出过压时,IC驱动控制电路可起到保护作用;当输出过流时,输出电流检测电路通过反馈电路控制IC驱动控制电路起到保护作用;当输出短路时,由于IC驱动控制电路没有了供电电压使得电路不停重启,起到保护作用。

Claims (3)

1.一种LED调光电源,其特征在于:该调光电源包括输入浪涌保护电路(1)、EMI滤波电路(2)、桥式整流电路(3)、IC驱动控制电路(4)、DC/DC隔离变换电路(5)、精密延时感光器(6)、输出电流检测电路(7)、反馈电路(8);输入浪涌保护电路(1)输入接市电,其输出端通过EMI滤波电路(2)连接至桥式整流电路(3);桥式整流电路(3)的输出连接至DC/DC隔离变换电路(5)的同时也通过电阻降压连接至IC驱动控制电路(4)去控制DC/DC隔离变换电路(5);DC/DC隔离变换电路(5)的输出通过输出电流检测电路(7)连接至LED光源;输出电流检测电路(7)和精密延时感光器(6)通过反馈电路连接至IC驱动控制电路(4)。
2.根据权利要求1所述LED调光电源,其特征在于:所述LED调光电源通过精密延时感光器时时的感应外界照度,从而在一定范围内控制输出恒流电流值。
3.如权利要求1中所述的一种LED调光电源,其特征在于,当输出过压时,IC驱动控制电路可起到保护作用;当输出过流时,输出电流检测电路通过反馈电路控制IC驱动控制电路起到保护作用;当输出短路时,由于IC驱动控制电路没有了供电电压使得电路不停重启,起到保护作用。
CN 201220125241 2012-03-29 2012-03-29 一种led调光电源 Expired - Fee Related CN202514132U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220125241 CN202514132U (zh) 2012-03-29 2012-03-29 一种led调光电源

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220125241 CN202514132U (zh) 2012-03-29 2012-03-29 一种led调光电源

Publications (1)

Publication Number Publication Date
CN202514132U true CN202514132U (zh) 2012-10-31

Family

ID=47066581

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220125241 Expired - Fee Related CN202514132U (zh) 2012-03-29 2012-03-29 一种led调光电源

Country Status (1)

Country Link
CN (1) CN202514132U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202279A (zh) * 2017-07-27 2017-09-26 佛山市维瑞克科技有限公司 一种led隧道灯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202279A (zh) * 2017-07-27 2017-09-26 佛山市维瑞克科技有限公司 一种led隧道灯

Similar Documents

Publication Publication Date Title
CN102202441A (zh) Led照明灯用交流电源直接供电的恒流控制器拓扑电路
CN103152895B (zh) 一种用交流电直接驱动led的电路
CN102510622A (zh) 适用于后备电源支架灯的led灯管驱动电路
CN203167384U (zh) 一种交流直接驱动led灯电流控制电路
CN203181299U (zh) 一种用于小功率灯具的恒流驱动电路结构
CN201954334U (zh) 开关稳流的恒定亮度led照明光源
CN201878375U (zh) Led恒压恒流驱动电路
CN202514132U (zh) 一种led调光电源
CN202310225U (zh) 适用于后备电源支架灯的led灯管驱动电路
CN102510615B (zh) 倍压整流高压供电的串联led恒流驱动电路
CN204652709U (zh) 无极性电容器降分压整流线性led驱动电源
CN104735837A (zh) 具有apfc功能的无工频纹波led路灯电源
CN106793315A (zh) Led智能恒流恒压驱动电源
CN103687209A (zh) 一种led路灯交流驱动电路
CN201601859U (zh) 一种非隔离式led驱动电路
CN201114868Y (zh) 一种led照明灯驱动电路
CN203942672U (zh) 一种光控led电源
CN202634807U (zh) 应用电流调整管的恒流led照明灯
CN203368809U (zh) 一种新型led驱动电源
CN102665341A (zh) 一种高效led电源
CN203590565U (zh) 一种led路灯交流驱动电路
CN107613611A (zh) 交流、直流自动切换led灯
CN101702855B (zh) Led照明灯电源控制器的高效低耗供电电路
CN208623946U (zh) 一种高功率因数隔离高光效led应急球泡灯
CN206650885U (zh) 一种新型无驱led灯

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: WUHAN QUANHUA OPTOELECTRONICS TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: WUHAN QUANHUA OPTOELECTRONICS TECHNOLOGY LTD.

CP01 Change in the name or title of a patent holder

Address after: 430074 Hubei city of Wuhan province high tech two Lu Guan Nan Industrial Park in East Lake New Technology Development Zone No. two

Patentee after: WUHAN QUANHUA OPTOELECTRONICS TECHNOLOGY CO., LTD.

Address before: 430074 Hubei city of Wuhan province high tech two Lu Guan Nan Industrial Park in East Lake New Technology Development Zone No. two

Patentee before: Wuhan Quanhua Photoelectric Technology Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200708

Address after: 571900 5001, 2nd floor, building A17, Hainan Ecological Software Park, hi tech industry demonstration zone, old town, Chengmai County, Hainan Province

Patentee after: Zhongheng Quanhua network technology (Hainan) Co., Ltd

Address before: 430074 Hubei city of Wuhan province high tech two Lu Guan Nan Industrial Park in East Lake New Technology Development Zone No. two

Patentee before: WUHAN QUANHUA OPTOELECTRONICS TECHNOLOGY 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: 20121031

Termination date: 20210329