CN102300375A - 一种适用可控硅调光器的led调光线路 - Google Patents
一种适用可控硅调光器的led调光线路 Download PDFInfo
- Publication number
- CN102300375A CN102300375A CN2011102802709A CN201110280270A CN102300375A CN 102300375 A CN102300375 A CN 102300375A CN 2011102802709 A CN2011102802709 A CN 2011102802709A CN 201110280270 A CN201110280270 A CN 201110280270A CN 102300375 A CN102300375 A CN 102300375A
- Authority
- CN
- China
- Prior art keywords
- led
- waveform
- circuit
- light emitting
- controllable silicon
- 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.)
- Pending
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 29
- 239000010703 silicon Substances 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000005286 illumination Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
一种适用可控硅调光器的LED调光线路，50/60Hz交流正弦波波形经过三端双向可控硅开关(TRIAC)斩波，经过桥式整流电路(A)整流，由隔离电路(U1)取出斩波波形送入单片机控制单元(MCU)，单片机控制单元(MCU)输出PWM波形给LED驱动芯片(LEDDRIVE)，LED驱动芯片(LEDDRIVE)驱动发光二极管(LED1、LED2)发光。它使LED灯直接替换白炽灯调光效果一样完美，并且电路简单，成本较低克服了LED灯替换白炽灯的一个重要阻碍。
Description
技术领域：
本发明涉及一种适用可控硅调光器的LED调光线路，属光电子技术应用领域，应用于通用照明。
背景技术：
调光不但节约电能，更是高质量照明必须，满足不同场景照明需求。作为白炽灯的调光方案，可控硅调光器具有经济方便、应用广泛的特点，调光效果非常完美。
目前，由于能效和环保的原因，世界各国都立法逐步淘汰禁用白炽灯，照明的主角是节能灯和LED灯，并且，由于LED灯无汞、无红外辐射和紫外线辐射，更高效节能更长寿也更环保，LED灯显然是未来照明的主流。但是，LED灯的调光却存在下述缺点：
1、用户希望能沿用原有的可控硅调光器，直接将白炽灯换成LED灯。由于白炽灯是纯电阻，LED灯却不是纯电阻，直接更换后调光时，易造成LED灯的闪烁和发光抖动。
2、已有许多LED驱动芯片厂家推出可以配用可控硅调光器的芯片，但使用效果并不完美，配部分可控硅调光器可以正常调光，配另一部可控硅分调光器则闪烁，无法兼容所有类型的前切相、后切相调光器。
3、这些可调光芯片电路复杂，生产调试困难，以及高昂的成本，成为LED灯替换白炽灯的一个障碍。
发明内容：
本发明的目的就是针对现有技术之不足，而提供一种适用可控硅调光器的LED调光线路，它使LED灯直接替换白炽灯调光效果一样完美，并且电路简单，成本较低，克服了LED灯替换白炽灯的一个重要阻碍。
本发明的技术解决措施如下：
一种适用可控硅调光器的LED调光线路，50/60Hz交流正弦波波形经过三端双向可控硅开关斩波，经过桥式整流电路整流，由隔离电路取出斩波波形送入单片机控制单元，单片机控制单元输出PWM波形给LED驱动芯片，LED驱动芯片驱动发光二极管发光。
所述PWM波形的频率为桥式整流电路整流后输出波形频率的3～6倍。
本发明的有益效果在于：
它使LED灯直接替换白炽灯调光效果一样完美，并且电路简单，成本较低，克服了LED灯替换白炽灯的一个重要阻碍。它适合所有类型前切相、后切相调光器，不会因调光器差异造成闪烁等问题；采用成熟可靠的单片机，通过数字电路及程序控制，提高参数一致性同时降低生产和调试成本；有助于LED灯的普及。
附图说明：
图1是可控硅调光器的电路示意图。
图2是可控硅调光器的波形示意图。
图3是本发明电路原理图。
图4是本发明配合可控硅调光器的波形示意图。
具体实施方式：
实施例：见图1至4所示，一种适用可控硅调光器的LED调光线路，50/60Hz交流正弦波波形经过三端双向可控硅开关TRIAC斩波，经过桥式整流电路A整流，由隔离电路U1取出斩波波形送入单片机控制单元MCU，单片机控制单元MCU输出PWM波形给LED驱动芯片LEDDRIVE，LED驱动芯片LEDDRIVE驱动发光二极管(LED1、LED2)发光。
所述PWM波形的频率为桥式整流电路A整流后输出波形频率的3～6倍。
工作原理：结合图1可控硅调光器的电路示意图，在图2所示可控硅调光器的波形示意图中：P0为输入的50Hz交流正弦波波形，半周波10ms，一个周期20ms。P1A、P1B为经过可控硅斩波波形，调节可控硅调光器的旋钮，可改变截止时间t1和导通时间t2的比例，实现平滑调光。
P1A波形的截止时间t1短，导通时间t2长；P1B波形的截止时间t1延长，导通时间t2变短。
可见，P1B截止时间比P1A截止时间更长，则P1B的功率比P1A功率小，P1B的照度更低。通过调节可控硅调光器的旋钮，延长导通时间t2则功率增加，缩短导通时间t2则功率减小，相应地，亮度也同时增加或减小。
结合图3本发明电路原理图，在图4所示本发明配合可控硅调光器的波形示意图中：
P0为输入的50Hz交流正弦波波形，半周波10ms，一个周期20ms。；
P1为经过可控硅斩波的50Hz交流波形，调节可控硅调光器的旋钮，可改变截止时间t1和导通时间t2的比例。
P2是经过全桥整流电路后的100Hz脉动直流波形。
其中A部分截止时间t1短，导通时间t2长；B部分截止时间t1长，导通时间t2短。
LED驱动电路用100Hz脉动直流供电，易造成LED灯的闪烁和发光抖动；即使采用昂贵的特定可调光驱动电路，经过复杂的调试，使用效果还不理想，只适用部分可控硅调光器，无法兼容所有类型的调光器。
本发明通过隔离电路将前切相、后切相调光器的的高压斩波波形经波形整形、电平转换，变成对应的低压100Hz方波波形，如波形图P3所示，其高电平时间t2与低电平时间t1比例与导通时间t2与截止时间t1比例相同。这个低压100Hz方波波形P3送入单片机控制单元，单片机控制单元输出的PWM波形频率提高数倍(例如400Hz)以避免人眼可察觉的闪烁感。这个PWM波形的占空比取决于P2波形的导通时间t2与截止时间t1比例，该PWM波形输入LED驱动电路的PWM接口，即可实现理想的无闪烁平滑调光。同时，由于采用数字技术和程序运算控制，参数具有高度的一致性和稳定性，没有模拟电路因元器件的离散性而造成的调试困难。
P4分别显示大占空比的A部分PWM波形和小占空比的B部分PWM波形。
P5则是LED驱动器输出到LED的恒流PWM波形。
具体来说，当可控硅调光器的旋钮调小，截止时间t1延长，导通时间t2变小；波形特性为P2的B部分，该波形经隔离整形和电平变换电路，得到P3的B部分方波输入单片机，单片机计算出P3的B部分波形的导通时间t2与截止时间t1比例变小，再调整输出PWM波形的占空比同步变小，LED发光相应减弱。
当可控硅调光器的旋钮调大，截止时间t1变小，导通时间t2延长；波形特性为P2的A部分，该波形经隔离整形和电平变换电路，得到P3的A部分方波输入单片机，单片机计算出P3的A部分波形的导通时间t2与截止时间t1比例变大，再调整输出PWM波形的占空比同步变大，LED发光相应增强。
由于PWM频率400Hz，每个导通周期内均稳定恒流，既无色坐标漂移，也无闪烁感，呈现完美调光效果。同时，单片机只计算P3波形的导通时间t2与截止时间t1比例，前切相与后切相并不影响输出PWM波形的占空比，调光效果不会改变。这是个独特的优势，模拟电路完全无法比肩。
Claims (2)
1.一种适用可控硅调光器的LED调光线路，其特征在于：50/60Hz交流正弦波波形经过三端双向可控硅开关(TRIAC)斩波，经过桥式整流电路(A)整流，由隔离电路(U1)取出斩波波形送入单片机控制单元(MCU)，单片机控制单元(MCU)输出PWM波形给LED驱动芯片(LEDDRIVE)，LED驱动芯片(LEDDRIVE)驱动发光二极管(LED1、LED2)发光。
2.根据权利要求1所述的一种适用可控硅调光器的LED调光线路，其特征在于：PWM波形的频率为桥式整流电路(A)整流后输出波形频率的3～6倍。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102802709A CN102300375A (zh) | 2011-09-21 | 2011-09-21 | 一种适用可控硅调光器的led调光线路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102802709A CN102300375A (zh) | 2011-09-21 | 2011-09-21 | 一种适用可控硅调光器的led调光线路 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102300375A true CN102300375A (zh) | 2011-12-28 |
Family
ID=45360454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102802709A Pending CN102300375A (zh) | 2011-09-21 | 2011-09-21 | 一种适用可控硅调光器的led调光线路 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102300375A (zh) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024994A (zh) * | 2012-11-12 | 2013-04-03 | 昂宝电子（上海）有限公司 | 使用triac调光器的调光控制系统和方法 |
| US8941324B2 (en) | 2011-04-22 | 2015-01-27 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control with capacitive loads |
| CN104994639A (zh) * | 2015-07-06 | 2015-10-21 | 湖南工业大学 | 一种可控整流波远距离调节led灯亮度的方法 |
| US9301349B2 (en) | 2011-05-11 | 2016-03-29 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using system controllers |
| US9480118B2 (en) | 2014-04-25 | 2016-10-25 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to TRIAC dimmers |
| CN106413209A (zh) * | 2016-12-21 | 2017-02-15 | 广东南能汇智节能科技有限公司 | 一种led灯光亮度调节电路及方法 |
| US9585222B2 (en) | 2014-07-08 | 2017-02-28 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US9883561B1 (en) | 2016-10-17 | 2018-01-30 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to triac dimmers by using modulation signals |
| US10375785B2 (en) | 2017-11-30 | 2019-08-06 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for stage-based control related to TRIAC dimmers |
| US10512131B2 (en) | 2017-09-14 | 2019-12-17 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to lighting emitting diodes |
| US10827588B2 (en) | 2017-12-28 | 2020-11-03 | On-Bright Electronics (Shanghai) Co., Ltd. | LED lighting systems with TRIAC dimmers and methods thereof |
| US11183996B2 (en) | 2017-07-10 | 2021-11-23 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US11224105B2 (en) | 2019-02-19 | 2022-01-11 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods with TRIAC dimmers for voltage conversion related to light emitting diodes |
| US11252799B2 (en) | 2019-12-27 | 2022-02-15 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling currents flowing through light emitting diodes |
| US11297704B2 (en) | 2019-08-06 | 2022-04-05 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting |
| US11405992B2 (en) | 2019-11-20 | 2022-08-02 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control related to TRIAC dimmers associated with LED lighting |
| US11540371B2 (en) | 2020-04-13 | 2022-12-27 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling power factors of LED lighting systems |
| US11564299B2 (en) | 2019-12-19 | 2023-01-24 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for providing power supply to current controllers associated with LED lighting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494938A (zh) * | 2009-02-19 | 2009-07-29 | 英飞特电子（杭州）有限公司 | 一种led照明系统的集中式调光电路 |
| US20110109249A1 (en) * | 2009-11-10 | 2011-05-12 | Green Mark Technology Inc. | Dimmable led lamp and dimmable led lighting apparatus |
| CN202261965U (zh) * | 2011-09-21 | 2012-05-30 | 缪仙荣 | 一种适用可控硅调光器的led调光线路 |
-
2011
- 2011-09-21 CN CN2011102802709A patent/CN102300375A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494938A (zh) * | 2009-02-19 | 2009-07-29 | 英飞特电子（杭州）有限公司 | 一种led照明系统的集中式调光电路 |
| US20110109249A1 (en) * | 2009-11-10 | 2011-05-12 | Green Mark Technology Inc. | Dimmable led lamp and dimmable led lighting apparatus |
| CN202261965U (zh) * | 2011-09-21 | 2012-05-30 | 缪仙荣 | 一种适用可控硅调光器的led调光线路 |
Cited By (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9414455B2 (en) | 2011-04-22 | 2016-08-09 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control with capacitive loads |
| US8941324B2 (en) | 2011-04-22 | 2015-01-27 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control with capacitive loads |
| US10292217B2 (en) | 2011-05-11 | 2019-05-14 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using system controllers |
| US9301349B2 (en) | 2011-05-11 | 2016-03-29 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using system controllers |
| US9554432B2 (en) | 2011-05-11 | 2017-01-24 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using system controllers |
| CN103024994A (zh) * | 2012-11-12 | 2013-04-03 | 昂宝电子（上海）有限公司 | 使用triac调光器的调光控制系统和方法 |
| US9408269B2 (en) | 2012-11-12 | 2016-08-02 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using TRIAC dimmers |
| US10999904B2 (en) | 2012-11-12 | 2021-05-04 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using TRIAC dimmers |
| US10194500B2 (en) | 2012-11-12 | 2019-01-29 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using TRIAC dimmers |
| US10455657B2 (en) | 2012-11-12 | 2019-10-22 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using TRIAC dimmers |
| US10448470B2 (en) | 2012-11-12 | 2019-10-15 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using triac dimmers |
| US9961734B2 (en) | 2012-11-12 | 2018-05-01 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control using TRIAC dimmers |
| US9480118B2 (en) | 2014-04-25 | 2016-10-25 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to TRIAC dimmers |
| US10383187B2 (en) | 2014-04-25 | 2019-08-13 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to TRIAC dimmers |
| US11212885B2 (en) | 2014-04-25 | 2021-12-28 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to TRIAC dimmers |
| US9585222B2 (en) | 2014-07-08 | 2017-02-28 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US10334677B2 (en) | 2014-07-08 | 2019-06-25 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US10342087B2 (en) | 2014-07-08 | 2019-07-02 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US9883562B2 (en) | 2014-07-08 | 2018-01-30 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US10448469B2 (en) | 2014-07-08 | 2019-10-15 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| US9750107B2 (en) | 2014-07-08 | 2017-08-29 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TIRAC dimmers |
| US10687397B2 (en) | 2014-07-08 | 2020-06-16 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for intelligent dimming control using TRIAC dimmers |
| CN104994639A (zh) * | 2015-07-06 | 2015-10-21 | 湖南工业大学 | 一种可控整流波远距离调节led灯亮度的方法 |
| CN104994639B (zh) * | 2015-07-06 | 2017-05-17 | 湖南工业大学 | 一种可控整流波远距离调节led灯亮度的方法 |
| US10264642B2 (en) | 2016-10-17 | 2019-04-16 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to TRIAC dimmers by using modulation signals |
| US9883561B1 (en) | 2016-10-17 | 2018-01-30 | Guangzhou On-Bright Electronics Co., Ltd. | Systems and methods for intelligent control related to triac dimmers by using modulation signals |
| CN106413209B (zh) * | 2016-12-21 | 2018-11-16 | 广东南能汇智节能科技有限公司 | 一种led灯光亮度调节方法 |
| CN106413209A (zh) * | 2016-12-21 | 2017-02-15 | 广东南能汇智节能科技有限公司 | 一种led灯光亮度调节电路及方法 |
| US11695401B2 (en) | 2017-07-10 | 2023-07-04 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US11784638B2 (en) | 2017-07-10 | 2023-10-10 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US11206015B2 (en) | 2017-07-10 | 2021-12-21 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US12009825B2 (en) | 2017-07-10 | 2024-06-11 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US11183996B2 (en) | 2017-07-10 | 2021-11-23 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US11201612B2 (en) | 2017-07-10 | 2021-12-14 | On-Bright Electronics (Shanghai) Co., Ltd. | Switch control systems for light emitting diodes and methods thereof |
| US10973095B2 (en) | 2017-09-14 | 2021-04-06 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to lighting emitting diodes |
| US10512131B2 (en) | 2017-09-14 | 2019-12-17 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to lighting emitting diodes |
| US10785837B2 (en) | 2017-11-30 | 2020-09-22 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for stage-based control related to TRIAC dimmers |
| US10999903B2 (en) | 2017-11-30 | 2021-05-04 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for stage-based control related to TRIAC dimmers |
| US11026304B2 (en) | 2017-11-30 | 2021-06-01 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for stage-based control related to TRIAC dimmers |
| US10375785B2 (en) | 2017-11-30 | 2019-08-06 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for stage-based control related to TRIAC dimmers |
| US11570859B2 (en) | 2017-12-28 | 2023-01-31 | On-Bright Electronics (Shanghai) Co., Ltd. | LED lighting systems with TRIAC dimmers and methods thereof |
| US10827588B2 (en) | 2017-12-28 | 2020-11-03 | On-Bright Electronics (Shanghai) Co., Ltd. | LED lighting systems with TRIAC dimmers and methods thereof |
| US11937350B2 (en) | 2017-12-28 | 2024-03-19 | On-Bright Electronics (Shanghai) Co., Ltd. | LED lighting systems with TRIAC dimmers and methods thereof |
| US11638335B2 (en) | 2017-12-28 | 2023-04-25 | On-Bright Electronics (Shanghai) Co., Ltd. | LED lighting systems with TRIAC dimmers and methods thereof |
| US11678417B2 (en) | 2019-02-19 | 2023-06-13 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods with TRIAC dimmers for voltage conversion related to light emitting diodes |
| US11224105B2 (en) | 2019-02-19 | 2022-01-11 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods with TRIAC dimmers for voltage conversion related to light emitting diodes |
| US11297704B2 (en) | 2019-08-06 | 2022-04-05 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting |
| US12193124B2 (en) | 2019-08-06 | 2025-01-07 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting |
| US11792901B2 (en) | 2019-08-06 | 2023-10-17 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for bleeder control related to TRIAC dimmers associated with LED lighting |
| US12089302B2 (en) | 2019-11-20 | 2024-09-10 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control related to TRIAC dimmers associated with LED lighting |
| US11405992B2 (en) | 2019-11-20 | 2022-08-02 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control related to TRIAC dimmers associated with LED lighting |
| US11743984B2 (en) | 2019-11-20 | 2023-08-29 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for dimming control related to TRIAC dimmers associated with LED lighting |
| US11856670B2 (en) | 2019-12-19 | 2023-12-26 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for providing power supply to current controllers associated with LED lighting |
| US11564299B2 (en) | 2019-12-19 | 2023-01-24 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for providing power supply to current controllers associated with LED lighting |
| US11723128B2 (en) | 2019-12-27 | 2023-08-08 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling currents flowing through light emitting diodes |
| US11252799B2 (en) | 2019-12-27 | 2022-02-15 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling currents flowing through light emitting diodes |
| US11997772B2 (en) | 2020-04-13 | 2024-05-28 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling power factors of led lighting systems |
| US11540371B2 (en) | 2020-04-13 | 2022-12-27 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for controlling power factors of LED lighting systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102300375A (zh) | 一种适用可控硅调光器的led调光线路 | |
| CN103139992B (zh) | 带可控硅旁路调光电路的led调光驱动系统 | |
| CN102648664B (zh) | 可调光的照明系统 | |
| CN102573213B (zh) | 一种led调光系统 | |
| CN202195288U (zh) | 遥控led灯具 | |
| CN209462651U (zh) | 调色调光led灯具 | |
| CN105813255A (zh) | 具同步脉冲宽度调制调光控制的发光二极管照明装置 | |
| TW201345317A (zh) | 照明系統 | |
| CN202261965U (zh) | 一种适用可控硅调光器的led调光线路 | |
| WO2013177757A1 (zh) | 一种led调光驱动器及led光源系统 | |
| EP3058794A1 (en) | Drive unit for a lighting element and operating method therefor | |
| CN105265020A (zh) | Led控制电路及方法 | |
| KR20130003388A (ko) | Ｌｅｄ 조명 장치 | |
| CN103139991A (zh) | 一种可调光led驱动电路 | |
| CN203027532U (zh) | 一种串联发光二极管恒流宽电压驱动电路 | |
| CN201426199Y (zh) | 调光装置与照明装置 | |
| KR101314425B1 (ko) | 디밍 가능한 엘이디 조명장치 | |
| CN103096563A (zh) | 一种基于多路照明led调光控制系统 | |
| CN205611001U (zh) | 一种高压线性恒流pwm光电隔离接收端 | |
| CN103052222A (zh) | 一种220v可调光的恒流驱动高压led电路 | |
| CN204598401U (zh) | 一种led触控调光电源 | |
| CN101990331A (zh) | 一种基于led的triac调光方法 | |
| CN203289697U (zh) | 调光电路 | |
| CN201555061U (zh) | 手动调光led灯具 | |
| CN205566714U (zh) | 一种led控制电路 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |