发明授权
- 专利标题: CIRCUIT ARRANGEMENT
- 专利标题(中): 电路布置
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申请号: EP00927075.2申请日: 2000-04-20
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公开(公告)号: EP1095542B1公开(公告)日: 2003-07-30
- 发明人: BEIJ, Marcel , BUIJ, Arnold, W.
- 申请人: Koninklijke Philips Electronics N.V.
- 申请人地址: Groenewoudseweg 1 5621 BA Eindhoven NL
- 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: Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构: Bosma, Rudolphus Hubertus Antonius
- 优先权: EP99201418 19990506
- 国际公布: WO00069226 20001116
- 主分类号: H05B41/298
- IPC分类号: H05B41/298
摘要:
In an electronic ballast for operating a discharge lamp, the voltage across the heater windings during preheating the lamp electrodes is used to detect whether a lamp is present.
公开/授权文献
- EP1095542A1 CIRCUIT ARRANGEMENT 公开/授权日:2001-05-02
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