发明授权
- 专利标题: AC driven light-emitting diodes
- 专利标题(中): 交流驱动发光二极管
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申请号: US11569707申请日: 2005-06-03
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公开(公告)号: US08084945B2公开(公告)日: 2011-12-27
- 发明人: Carsten Deppe , Matthias Wendt
- 申请人: Carsten Deppe , Matthias Wendt
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 代理商 Kenneth D. Springer; Mark L. Beloborodov
- 优先权: EP04102482 20040603
- 国际申请: PCT/IB2005/051814 WO 20050603
- 国际公布: WO2005/120134 WO 20051215
- 主分类号: H01J13/46
- IPC分类号: H01J13/46
摘要:
The invention relates to a circuit (2) comprising at least two parallel-connected light-emitting diodes (4, 5) opposite poled in a first parallel branch (12) and comprising at least two parallel-connected light-emitting diodes (6, 7) opposite poled in a second parallel branch (13), and also comprising a capacitor (8) and a coil (9). According to the invention, the first parallel branch (12) has a capacitor (8) and the second parallel branch (13) has the coil (9). On account of the capacitive parallel branch (10) and the inductive parallel branch (11), idle currents arise which are phase-shifted with respect to one another. The idle currents compensate one another and light changes of the oppositely-poled diode pairs take place at different points in time. A light current is then smoothed.
公开/授权文献
- US20080054814A1 Ac Driven Light-Emitting Diodes 公开/授权日:2008-03-06
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