Invention Grant
- Patent Title: Dynamic bleeder current control for LED dimmers
- Patent Title (中): LED调光器的动态泄放电流控制
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Application No.: US14799133Application Date: 2015-07-14
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Publication No.: US09307593B1Publication Date: 2016-04-05
- Inventor: Xiaoyan Wang , Nan Shi , Clarita Chiting Knoll , Guang Feng
- Applicant: Dialog Semiconductor Inc.
- Applicant Address: US CA Campbell
- Assignee: Dialog Semiconductor Inc.
- Current Assignee: Dialog Semiconductor Inc.
- Current Assignee Address: US CA Campbell
- Agency: Fenwick & West LLP
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08

Abstract:
LED lamp systems as described herein include a dimmer switch and a bleeder circuit. The bleeder circuit provides a bleeder current to management voltage and to prevent the dimmer switch from turning off prematurely. The bleeder circuit may monitor the AC input voltage outputted by the dimmer switch. When the AC input voltage is less than a first threshold, the bleeder circuit provides a bleeder current. When the AC input voltage is greater than a second threshold, the bleeder circuit adjusts the bleeder current to less than a predetermined level.
Public/Granted literature
- US20160081151A1 Dynamic Bleeder Current Control for LED Dimmers Public/Granted day:2016-03-17
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