Original document(9 pages)  中文版
    The invention relates to an operating circuit for a low-pressure discharge lamp LP, in which the lamp electrodes can be preheated by means of a resonant circuit C14, T11. In order to determine the resonant frequency accurately and to establish the lamp type being used, a frequency range is moved through at the start of operation and the voltage is measured on a primary winding T11 of a preheating transformer.
Application Number
申请号		 03100902 Application Date
申请日		 2003.01.02
Title 名称 Running equipment for discharge lamp with preheating device
Publication Number
公开号		 1430459 Publication Date
公开日		 2003.07.16
Approval Pub. Date Granted Pub. Date
International Classification 分类号 H05B41/295
Applicant(s) Name
申请人		 Patent Treuchand Gesellschaft fuer Elecktrische Gluehalampen GmbH
Address 地址
Inventor(s) Name 发明人 O Buss;B. Schmer;M. Virich
Attorney & Agent 代理人 wu limeng zhang zhicheng
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