发明申请
US20120153833A1 Controlling Current Flowing Through LEDs in a LED Lighting Fixture
有权
控制在LED照明灯具中流过LED的电流
- 专利标题: Controlling Current Flowing Through LEDs in a LED Lighting Fixture
- 专利标题(中): 控制在LED照明灯具中流过LED的电流
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申请号: US13328679申请日: 2011-12-16
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公开(公告)号: US20120153833A1公开(公告)日: 2012-06-21
- 发明人: Vaske Mikani , Li Li , Christopher Lee Bohler , Scott Edward Rhodes
- 申请人: Vaske Mikani , Li Li , Christopher Lee Bohler , Scott Edward Rhodes
- 主分类号: H05B37/02
- IPC分类号: H05B37/02
摘要:
An alternating current (“AC”)-powered light emitting diode (“LED”) driver is described herein for driving one or more arrays of series-connected LEDs. The LED driver includes a first transistor that includes a collector-emitter path connected in series with at least one LED of an array of series-connected LEDs. The LED driver also includes a second transistor configured to selectively activate the first transistor based on a level of current through the array of series-connected LEDs. The array of series-connected LEDs has a turn-on voltage.
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