Invention Grant
- Patent Title: Multi-bleeder mode control for improved LED driver performance
- Patent Title (中): 多放样模式控制,提高LED驱动器性能
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Application No.: US14261271Application Date: 2014-04-24
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Publication No.: US09402293B2Publication Date: 2016-07-26
- Inventor: Peter Vaughan , Ricardo L. J. Pregitzer
- Applicant: Power Integrations, Inc.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H05B33/08
- IPC: H05B33/08 ; H05B37/02

Abstract:
Various examples directed to phase-dimming LED driver input circuitry having multiple bleeder circuits activated by a controller with multi-bleeder mode control are disclosed. In one example, the input circuitry may include multiple bleeder circuits controlled by the controller in an open-loop or closed-loop configuration. The controller may selectively activate or deactivate the multiple bleeder circuits based on the input line voltage, the dimming state, and the type of dimming being implemented to improve performance of the LED driver by preventing or reducing shimmering/blinking and by reducing bleeder loss.
Public/Granted literature
- US20150312978A1 MULTI-BLEEDER MODE CONTROL FOR IMPROVED LED DRIVER PERFORMANCE Public/Granted day:2015-10-29
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