Invention Grant
US09030119B2 LED string driver arrangement with non-dissipative current balancer
有权
LED串驱动器配置与非耗散电流平衡器
- Patent Title: LED string driver arrangement with non-dissipative current balancer
- Patent Title (中): LED串驱动器配置与非耗散电流平衡器
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Application No.: US13175899Application Date: 2011-07-04
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Publication No.: US09030119B2Publication Date: 2015-05-12
- Inventor: Xiaoping Jin
- Applicant: Xiaoping Jin
- Applicant Address: US CA Aliso Viejo
- Assignee: Microsemi Corporation
- Current Assignee: Microsemi Corporation
- Current Assignee Address: US CA Aliso Viejo
- Agent Simon Kahn
- Main IPC: H05B41/24
- IPC: H05B41/24 ; H05B33/08

Abstract:
A solid state lighting driver arrangement exhibiting a plurality of LED strings receiving power from a single power source, the single power source providing a discontinuous current, wherein a plurality of first windings are provided, each associated with a particular LED string and coupled to provide current balancing between the various LED strings. The discontinuous current resets the windings during the off time or during a reversal period. In one particular embodiment, a second winding is magnetically coupled to each of the first windings, and the second windings are connected in a closed in-phase loop. In another particular embodiment, at least two of the first windings are magnetically coupled to each other, thus ensuring a balance between current in each LED string.
Public/Granted literature
- US20120013259A1 LED STRING DRIVER ARRANGEMENT WITH NON-DISSIPATIVE CURRENT BALANCER Public/Granted day:2012-01-19
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