发明名称 ELECTRONIC BALLAST FOR COLD CATHODE FLUORESCENT LAMP WITH DIMMING
摘要 An electronic ballast for powering a cold cathode fluorescent lamp (18) of an electronic display device comprising: a rectifier (40) coupled to a source of AC power for producing a rectified DC output voltage, a power factor correction circuit (50) receiving the rectified DC output voltage and providing an increased voltage DC bus voltage, an electronic switching circuit comprising at least one electronic switch for switching the DC bus voltage to provide a switched voltage for driving a cold cathode fluorescent lamp (18), the switched voltage being provided to the lamp (18) through an output stage (74) comprising a resonant LC circuit; and an electronic ballast control circuit (72) for controlling a switching operation of the electronic switching circuit (70), the electronic ballast being provided in a housing for the electronic display device.
申请公布号 WO02077740(A1) 申请公布日期 2002.10.03
申请号 WO2002US08995 申请日期 2002.03.22
申请人 INTERNATIONAL RECTIFIER CORPORATION 发明人 RIBARICH, THOMAS, J
分类号 H05B41/24;H02M3/155;H05B41/392;(IPC1-7):G05F1/00 主分类号 H05B41/24
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