发明名称 Dimming ballast and method
摘要 A ballast lamp circuit and method of operation is disclosed. The ballast lamp circuit comprising an inverter circuit and cathode heating circuit, wherein a lamp current, generated by the inverter circuit, is inversely proportional to a lamp cathode voltage generated by the cathode heating circuit.
申请公布号 US7247991(B2) 申请公布日期 2007.07.24
申请号 US20050300841 申请日期 2005.12.15
申请人 GENERAL ELECTRIC COMPANY 发明人 CHEN TIMOTHY;ROUAUD DIDIER;SKULLY JAMES K.
分类号 H05B39/04 主分类号 H05B39/04
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