Original document(9 pages)  中文版
    The present invention relates to a power-supply control circuit for humidity sensor of microwaven oven. Said power-supply control circuit mainly includes microcomputer controller, amplifier, humidity sensor, also includes switch control circuit formed from diode D2 and transistor TR1 for inputting power supply into humidity sensor, in which the anode of diode is connected with fifth terminal of microcomputer controller, and the cathode of diode is connected with base of transistor as switch measure, and the collector of transistor is connected with resistor, and the emitter of the transistor is connected with -15V valtage. Said circuit can prolong the service life of humidity sensor and can raise its reliability.
Application Number
申请号		 03104846 Application Date
申请日		 2003.02.21
Title 名称 Power supply control circuit for microwave oven humidity transducer
Publication Number
公开号		 1523282 Publication Date
公开日		 2004.08.25
Approval Pub. Date Granted Pub. Date
International Classification 分类号 F24C7/02,F24C7/08,H05B6/68
Applicant(s) Name
申请人		 LG Electronics (Tianjin) Appliance Inc.
Address 地址 300402
Inventor(s) Name 发明人
Attorney & Agent 代理人 ma dunfang

  
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