CN102523650B - 一种led电流检测和控制电路 - Google Patents
一种led电流检测和控制电路 Download PDFInfo
- Publication number
- CN102523650B CN102523650B CN201110394512.7A CN201110394512A CN102523650B CN 102523650 B CN102523650 B CN 102523650B CN 201110394512 A CN201110394512 A CN 201110394512A CN 102523650 B CN102523650 B CN 102523650B
- Authority
- CN
- China
- Prior art keywords
- output
- controller
- circuit
- resistance
- signal
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 23
- 238000002955 isolation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 230000001939 inductive effect Effects 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 8
- 229910044991 metal oxide Inorganic materials 0.000 description 7
- 150000004706 metal oxides Chemical class 0.000 description 7
- 238000005286 illumination Methods 0.000 description 5
- 238000007600 charging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110394512.7A CN102523650B (zh) | 2011-12-02 | 2011-12-02 | 一种led电流检测和控制电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110394512.7A CN102523650B (zh) | 2011-12-02 | 2011-12-02 | 一种led电流检测和控制电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102523650A CN102523650A (zh) | 2012-06-27 |
CN102523650B true CN102523650B (zh) | 2014-04-02 |
Family
ID=46294408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110394512.7A Active CN102523650B (zh) | 2011-12-02 | 2011-12-02 | 一种led电流检测和控制电路 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102523650B (zh) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9253843B2 (en) | 2008-12-12 | 2016-02-02 | 02Micro Inc | Driving circuit with dimming controller for driving light sources |
US9386653B2 (en) | 2008-12-12 | 2016-07-05 | O2Micro Inc | Circuits and methods for driving light sources |
US9232591B2 (en) | 2008-12-12 | 2016-01-05 | O2Micro Inc. | Circuits and methods for driving light sources |
CN103260301B (zh) * | 2012-06-28 | 2014-08-27 | 凹凸电子(武汉)有限公司 | 驱动发光二极管光源的驱动电路及控制器 |
TWM452547U (zh) * | 2012-07-27 | 2013-05-01 | Excelliance Mos Corp | 電壓轉換裝置 |
US9118249B2 (en) | 2012-07-27 | 2015-08-25 | Excelliance Mos Corporation | Power conversion apparatus |
CN103023314B (zh) * | 2012-12-28 | 2015-01-14 | 杭州士兰微电子股份有限公司 | 升降压开关电源及其控制器 |
CN103152955B (zh) * | 2013-03-28 | 2016-02-10 | 蒋晓博 | 一种led电流检测和控制电路及其方法 |
CN103220859B (zh) * | 2013-04-12 | 2016-08-10 | 深圳市明微电子股份有限公司 | 恒流控制电路及使用该电路的装置 |
CN103414357B (zh) * | 2013-04-13 | 2018-10-09 | 江阴荧特微电子有限公司 | 一种受负载电压调节的源端控制恒流输出电源的驱动电路 |
CN103424601B (zh) * | 2013-08-21 | 2015-08-19 | 矽力杰半导体技术(杭州)有限公司 | 一种电压检测电路 |
CN104582058A (zh) * | 2013-10-12 | 2015-04-29 | 欧普照明股份有限公司 | 一种led驱动 |
CN103547042B (zh) * | 2013-11-07 | 2016-03-02 | 成都启臣微电子有限公司 | 基于功率因数校正的led恒流驱动电路 |
CN105430829A (zh) * | 2014-09-22 | 2016-03-23 | 李强 | 一种自供电升降压led驱动电源装置及其方法 |
CN105898955A (zh) * | 2015-01-22 | 2016-08-24 | 李强 | 一种改进的降压调光led驱动电源装置及其方法 |
CN106505841B (zh) * | 2015-09-07 | 2018-04-20 | 比亚迪股份有限公司 | 开关电源及其初级控制芯片和环路补偿装置 |
CN105675958A (zh) * | 2016-01-27 | 2016-06-15 | 佛山市南海区联合广东新光源产业创新中心 | 一种用于led芯片内电流检测的电路 |
JP6745478B2 (ja) * | 2016-06-30 | 2020-08-26 | パナソニックIpマネジメント株式会社 | 保護回路及び配線器具 |
KR102471045B1 (ko) * | 2016-12-21 | 2022-11-25 | 아싸 아브로이 에이비 | 전력을 전송하기 위한 전력변환기 |
CN107656124B (zh) * | 2017-04-24 | 2023-06-09 | 深圳市华芯邦科技有限公司 | 无需外部采样电阻的Boost负载电流检测电路及方法 |
CN108845181A (zh) * | 2018-07-09 | 2018-11-20 | 珠海市微半导体有限公司 | 电流检测电路和检测方法 |
CN108957108B (zh) * | 2018-08-17 | 2024-03-12 | 无锡麟力科技有限公司 | 一种市电停电检测电路 |
CN110504848B (zh) * | 2019-07-24 | 2021-07-16 | 上海源微电子科技有限公司 | 一种开关电源的输入电流峰值调制方法 |
CN112542939B (zh) * | 2020-12-22 | 2021-10-22 | 成都启臣微电子股份有限公司 | 一种原边反馈同步响应电路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112005003072T5 (de) * | 2004-12-14 | 2008-01-24 | Matsushita Electric Industrial Co. Ltd. | Halbleiterschaltung zum Ansteuern einer Licht emittierenden Diode und Vorrichtung zum Ansteuern einer Licht emittierenden Diode |
CN101588664B (zh) * | 2008-05-21 | 2012-12-05 | 原景科技股份有限公司 | 发光二极管驱动电路及用以控制功率开关的电路 |
CN102187736B (zh) * | 2008-10-20 | 2013-06-19 | 赤多尼科有限公司 | 发光二极管的驱动电路 |
CN101873736B (zh) * | 2009-04-24 | 2012-10-31 | 辉芒微电子(深圳)有限公司 | 一种led驱动电路 |
CN103152946B (zh) * | 2011-01-10 | 2015-08-05 | 矽力杰半导体技术(杭州)有限公司 | 一种高效率的led驱动电路 |
-
2011
- 2011-12-02 CN CN201110394512.7A patent/CN102523650B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN102523650A (zh) | 2012-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102523650B (zh) | 一种led电流检测和控制电路 | |
EP2713488B1 (en) | Electronic converter, and related lighting system and method of operating an electronic converter | |
CN103427656B (zh) | 一种交错并联反激式led驱动电源及其pfm控制电路 | |
TWI511435B (zh) | AC - DC power converter | |
CN106793339B (zh) | 基于原边反馈的自适应线电压补偿led驱动电路 | |
CN110759312A (zh) | 用于开关转换器的准谐振模式电压控制的设备和方法 | |
CN104994664B (zh) | 一种漏感能量回馈的单级降压型led驱动电路 | |
CN103874295B (zh) | 单级型led驱动电源 | |
US20210036631A1 (en) | Ac-dc converter and ac-dc rectifier | |
CN113489309B (zh) | 宽输出电压的无桥降压式功率因数校正变换器及控制方法 | |
CN103152955B (zh) | 一种led电流检测和控制电路及其方法 | |
CN103647448B (zh) | 集成降压-反激式高功率因数恒流电路及装置 | |
CN103517506B (zh) | 为发光二极管光源供电的驱动电路及方法、电力变换器 | |
CN203617902U (zh) | 集成降压-反激式高功率因数恒流电路及装置 | |
CN104124862B (zh) | 无需环路补偿的高pfc恒流控制装置及电压变换器 | |
CN203675399U (zh) | 发光元件驱动系统及驱动控制电路 | |
CN208589926U (zh) | 一种具有吸收功能的同步整流供电电路 | |
CN106413202A (zh) | 基于SEPIC与Flyback电路的原边控制LED驱动电路 | |
CN203504839U (zh) | 一种采用初级检测和调控的led灯驱动电源 | |
Huang et al. | Analysis and design of a single-stage buck-type AC-DC adaptor | |
CN206283411U (zh) | 一种单级隔离功率因数校正电路 | |
CN108900096A (zh) | 一种具有吸收功能的同步整流供电电路 | |
CN101969723B (zh) | 一种高功率因数的无光耦两级式led驱动器电路 | |
TWI414135B (zh) | 單級返馳式功率因數修正轉換器 | |
CN104767404B (zh) | 超高压电压调节器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
ASS | Succession or assignment of patent right |
Owner name: JIANG XIAOBO Free format text: FORMER OWNER: ZHAO XIUPING Effective date: 20120608 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Jiang Xiaobo Inventor before: Zhao Xiuping |
|
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 618000 DEYANG, SICHUAN PROVINCE TO: 610041 CHENGDU, SICHUAN PROVINCE Free format text: CORRECT: INVENTOR; FROM: ZHAO XIUPING TO: JIANG XIAOBO |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20120608 Address after: 610041, Sichuan, Chengdu province Wuhou District wash Bridge side Street No. 21, attached to No. 1 Applicant after: Jiang Xiaobo Address before: 618000 Deyang province Sichuan City Jingyang District Kunshan Street 102 District 1 building 4 floor No. 6 Applicant before: Zhao Xiuping |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210208 Address after: 518101 Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN LINGQI SEMICONDUCTOR Co.,Ltd. Address before: 610041 no.21-1, Ximianqiao Hengjie, Wuhou District, Chengdu, Sichuan Province Patentee before: Jiang Xiaobo |