CN107426879B - 一种基于pwm的电压调光led控制*** - Google Patents
一种基于pwm的电压调光led控制*** Download PDFInfo
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- CN107426879B CN107426879B CN201710766753.7A CN201710766753A CN107426879B CN 107426879 B CN107426879 B CN 107426879B CN 201710766753 A CN201710766753 A CN 201710766753A CN 107426879 B CN107426879 B CN 107426879B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
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CN107426879B true CN107426879B (zh) | 2020-09-15 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108112118A (zh) * | 2017-12-15 | 2018-06-01 | 上海昭关照明实业有限公司 | 照明设备的启动方法、装置及led灯组件 |
CN111836432B (zh) * | 2019-03-27 | 2022-07-26 | 辉芒微电子(深圳)有限公司 | 一种pwm调光的线性恒流驱动电路、芯片以及方法 |
CN110047436B (zh) * | 2019-06-06 | 2021-11-23 | 京东方科技集团股份有限公司 | 像素电路、阵列基板、其驱动方法、显示面板及显示装置 |
CN112654111A (zh) * | 2020-12-30 | 2021-04-13 | 上海新进芯微电子有限公司 | Led调光电路、led驱动***及电子设备 |
CN117395831B (zh) * | 2023-10-30 | 2024-05-07 | 中国科学院长春光学精密机械与物理研究所 | 一种led驱动调光电路及控制方法 |
CN117881041A (zh) * | 2024-03-11 | 2024-04-12 | 广东柏科电源有限公司 | 一种调光控制方法及调光电路 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102821511A (zh) * | 2011-06-08 | 2012-12-12 | 美格纳半导体有限公司 | Led驱动电路 |
CN103151009A (zh) * | 2013-02-26 | 2013-06-12 | 深圳市华星光电技术有限公司 | 一种背光调光电路及其调光方法、液晶显示器 |
CN105578692A (zh) * | 2016-02-25 | 2016-05-11 | 南京思飞捷软件科技有限公司 | 一种通过电力线载波技术传输pwm信号控制led的调光方法 |
CN206042453U (zh) * | 2016-09-12 | 2017-03-22 | 惠州Tcl照明电器有限公司 | Pwm隔离调光电路及led调光驱动电源 |
CN106922052A (zh) * | 2017-03-22 | 2017-07-04 | 中山品上照明有限公司 | 一种兼容电压调光与pwm调光的led灯控制装置 |
Family Cites Families (2)
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KR101385117B1 (ko) * | 2007-12-06 | 2014-04-15 | 삼성디스플레이 주식회사 | 백라이트 어셈블리, 이를 갖는 표시장치 및 이의 구동에적용되는 전류제어소자의 셧다운 방지방법 |
CN202514136U (zh) * | 2012-03-30 | 2012-10-31 | 南京冠亚电源设备有限公司 | 一种可调光的led驱动芯片及驱动电路 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102821511A (zh) * | 2011-06-08 | 2012-12-12 | 美格纳半导体有限公司 | Led驱动电路 |
CN103151009A (zh) * | 2013-02-26 | 2013-06-12 | 深圳市华星光电技术有限公司 | 一种背光调光电路及其调光方法、液晶显示器 |
CN105578692A (zh) * | 2016-02-25 | 2016-05-11 | 南京思飞捷软件科技有限公司 | 一种通过电力线载波技术传输pwm信号控制led的调光方法 |
CN206042453U (zh) * | 2016-09-12 | 2017-03-22 | 惠州Tcl照明电器有限公司 | Pwm隔离调光电路及led调光驱动电源 |
CN106922052A (zh) * | 2017-03-22 | 2017-07-04 | 中山品上照明有限公司 | 一种兼容电压调光与pwm调光的led灯控制装置 |
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Denomination of invention: A voltage dimming LED control system based on PWM Effective date of registration: 20211216 Granted publication date: 20200915 Pledgee: Yantai financing guarantee Group Co.,Ltd. Pledgor: LUDONG University Registration number: Y2021980015152 |
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