发明名称 |
Apparatus, Method and System for Providing AC Line Power to Lighting Devices |
摘要 |
An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In an exemplary embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.
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申请公布号 |
US2012081009(A1) |
申请公布日期 |
2012.04.05 |
申请号 |
US201113283201 |
申请日期 |
2011.10.27 |
申请人 |
SHTEYNBERG ANATOLY;ZHOU DONGSHENG;DREYER STEPHEN F.;OHARA HARLAN;DOLUCA SINAN;EXCLARA INC. |
发明人 |
SHTEYNBERG ANATOLY;ZHOU DONGSHENG;DREYER STEPHEN F.;OHARA HARLAN;DOLUCA SINAN |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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