CN105472827B - Led驱动控制电路及其控制芯片 - Google Patents
Led驱动控制电路及其控制芯片 Download PDFInfo
- Publication number
- CN105472827B CN105472827B CN201410419059.4A CN201410419059A CN105472827B CN 105472827 B CN105472827 B CN 105472827B CN 201410419059 A CN201410419059 A CN 201410419059A CN 105472827 B CN105472827 B CN 105472827B
- Authority
- CN
- China
- Prior art keywords
- signal
- sampling
- switch
- switching tube
- capacitance
- 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
Landscapes
- Electronic Switches (AREA)
Abstract
Description
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410419059.4A CN105472827B (zh) | 2014-08-22 | 2014-08-22 | Led驱动控制电路及其控制芯片 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410419059.4A CN105472827B (zh) | 2014-08-22 | 2014-08-22 | Led驱动控制电路及其控制芯片 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105472827A CN105472827A (zh) | 2016-04-06 |
CN105472827B true CN105472827B (zh) | 2018-11-09 |
Family
ID=55609961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410419059.4A Active CN105472827B (zh) | 2014-08-22 | 2014-08-22 | Led驱动控制电路及其控制芯片 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105472827B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105259407B (zh) * | 2015-11-04 | 2019-04-30 | 武汉精测电子集团股份有限公司 | 可对多路电流进行采样与检测的装置及方法 |
EP3229336B1 (en) * | 2016-02-05 | 2020-09-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging method and adapter |
EP3285361B1 (en) | 2016-02-05 | 2020-10-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal charging system, charging method, and power adapter |
CN105955383A (zh) * | 2016-07-15 | 2016-09-21 | 张升泽 | 电子芯片的电流调制方法及*** |
CN109699099B (zh) * | 2017-10-20 | 2021-03-02 | 上海三思电子工程有限公司 | 应用于led照明设备的调光控制装置及方法 |
CN110212765B (zh) * | 2018-02-28 | 2021-03-02 | 比亚迪半导体股份有限公司 | 一种电源及其电源电路 |
CN112532083B (zh) * | 2020-12-15 | 2021-11-23 | 南京微盟电子有限公司 | 一种连续导通模式的开关电源恒流输出控制*** |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101546963A (zh) * | 2009-04-22 | 2009-09-30 | 南京航空航天大学 | 一种pfc变换器的数字单周控制方法 |
US20100207536A1 (en) * | 2007-10-26 | 2010-08-19 | Lighting Science Group Corporation | High efficiency light source with integrated ballast |
CN102684517A (zh) * | 2012-05-24 | 2012-09-19 | 深圳市明微电子股份有限公司 | 一种具有高功率因数的开关电源及其控制器 |
CN102685982A (zh) * | 2012-04-10 | 2012-09-19 | 苏州聚元微电子有限公司 | 原边反馈恒流控制电路 |
CN103490636A (zh) * | 2012-06-11 | 2014-01-01 | 比亚迪股份有限公司 | 用于开关电源的准谐振控制方法、***及装置 |
-
2014
- 2014-08-22 CN CN201410419059.4A patent/CN105472827B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100207536A1 (en) * | 2007-10-26 | 2010-08-19 | Lighting Science Group Corporation | High efficiency light source with integrated ballast |
CN101546963A (zh) * | 2009-04-22 | 2009-09-30 | 南京航空航天大学 | 一种pfc变换器的数字单周控制方法 |
CN102685982A (zh) * | 2012-04-10 | 2012-09-19 | 苏州聚元微电子有限公司 | 原边反馈恒流控制电路 |
CN102684517A (zh) * | 2012-05-24 | 2012-09-19 | 深圳市明微电子股份有限公司 | 一种具有高功率因数的开关电源及其控制器 |
CN103490636A (zh) * | 2012-06-11 | 2014-01-01 | 比亚迪股份有限公司 | 用于开关电源的准谐振控制方法、***及装置 |
Also Published As
Publication number | Publication date |
---|---|
CN105472827A (zh) | 2016-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105472827B (zh) | Led驱动控制电路及其控制芯片 | |
US11626797B2 (en) | Systems and methods for output current regulation in power conversion systems | |
US10205376B2 (en) | Switch control circuit including multipin to set dead time information and/or protection mode | |
US9036385B2 (en) | Power supply, power management device applied to a power supply, and method for performing brown-out protection and overheat protection of a power management device | |
US9059585B2 (en) | Self-discharge control for an EMI filter capacitor | |
US9325255B2 (en) | Switch controller, switch control method, and power supply device comprising the switch controller | |
CN106803666B (zh) | 开关电源控制装置及开关电源 | |
CN110176871A (zh) | 用于使体二极管功率损耗最小化的开关转换器的栅极驱动器 | |
US20150222171A1 (en) | Current detection and emulation circuit, and method thereof | |
US7994757B2 (en) | DC-DC converter | |
CN107528452A (zh) | 驱动装置和电源*** | |
US20140016381A1 (en) | Current detecting circuit, controlling circuit and power conversion circuit | |
CN104795989A (zh) | 具有减小的浪涌电流及故障保护的切换式电容器dc-dc转换器 | |
US20130342938A1 (en) | Short sensing circuit, short sensing method and power supply device comprising the short sensing circuit | |
KR20170002327A (ko) | 입력전압 검출회로 및 이를 포함하는 전력 공급 장치 | |
CN104093250B (zh) | 一种用于led驱动电路的开路过压保护装置 | |
CN101425752B (zh) | 可调整前缘遮蔽时间的控制电路及电源转换*** | |
US8976548B2 (en) | Method and apparatus for AC-to-DC power conversion | |
US7369382B2 (en) | Integrated circuit with an undervoltage detector | |
CN108933529A (zh) | 电源控制装置及电源控制*** | |
US10116211B2 (en) | Power converter with adaptive zero-crossing current detection | |
CN105357814A (zh) | 一种用于led恒流驱动电路的峰值电流检测电路及方法 | |
US20160308530A1 (en) | Gate driver for driving inverter | |
CN108370216B (zh) | 启动时具有零电流的开关功率转换器 | |
CN106655751B (zh) | 功率因数校正电路及其控制方法、以及开关电源 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20191227 Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Patentee after: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: BYD Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: BYD Semiconductor Co.,Ltd. Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder |