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Remote control of fluorescent lamp ballast

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专利内容由知识产权出版社提供

专利名称:Remote control of fluorescent lamp ballast发明人:Kang-Hu, Feng,Man Lau, Chung,Yang, Kevin,Si

Zhu, Josuha,Shangder Shen, Peter,Jednacz,Thomas C.

申请号:EP91112344.6申请日:19910723公开号:EP0471215A1公开日:19920219

专利附图:

摘要:A dimming ballast system wherein the light output of the lamp is controlled bya remote source. The ballast output voltage is regulated by a voltage control feedback

loop, the dimming function being achieved by varying the set point of the control loop.The remote control signal, coded by interrupting the current flow to the ballast for ashort period, is processed digitally by a microcomputer which generates information tovary the control set point. Circuit means are provided to control the filament voltage ofthe fluorescent lamps such that as the lamps are dimmed down, the filament voltage ismaintained or slightly increased, thus prolonging lamp life and stabilizing the lamp lightoutput.

申请人:ELECTRONIC BALLAST TECHNOLOGY INCORPORATED

地址:2510 West 237th Street Torrance, California 90505 US

国籍:US

代理机构:Dusseldorp, Jan Charles

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