发明名称 |
TRIAC DIMMABLE COMPACT FLUORESCENT LAMP WITH LOW POWER FACTOR |
摘要 |
<p>A triac dimmable compact fluorescent lamp having a low power factor. A power feedback circuit coupled between the input and output stages of the lamp ballast creates sufficient current demand to sustain triac conduction at low dim levels. The power fed back from the output stage to the input stage, which includes a voltage doubler, reflects the voltage across the lamp.</p> |
申请公布号 |
EP0917811(B1) |
申请公布日期 |
2005.02.02 |
申请号 |
EP19980907115 |
申请日期 |
1998.03.23 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
GRADZKI, PAWEL;JANCZAK, JERZY |
分类号 |
H05B41/24;H05B41/282;H05B41/285;H05B41/392;(IPC1-7):H05B41/28 |
主分类号 |
H05B41/24 |
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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