发明名称 |
ELECTRONIC BALLAST |
摘要 |
An electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive device having complementary duty cycles, a control circuit for controlling the controllably conductive device, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive device. In an especially preferred embodiment, the controllably conductive device of the valley-fill circuit is also one of the controllably conductive devices of the inverter.
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申请公布号 |
WO03001855(A8) |
申请公布日期 |
2004.05.06 |
申请号 |
WO2002US20281 |
申请日期 |
2002.06.24 |
申请人 |
LUTRON ELECTRONICS CO., INC. |
发明人 |
NEWMAN, JR., ROBERT, C.;DEJONGE, STUART;TAIPALE, MARK;TRAVAGLINI, DOMINICK;SPIRA, JOEL |
分类号 |
H05B41/282;H02M7/12;H05B41/28;(IPC1-7):H05B41/28 |
主分类号 |
H05B41/282 |
代理机构 |
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主权项 |
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地址 |
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