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公开(公告)号:US06936803B2
公开(公告)日:2005-08-30
申请号:US10732413
申请日:2003-12-11
申请人: Min Gi I , Sung Jin Han , Dong Myung Shin
发明人: Min Gi I , Sung Jin Han , Dong Myung Shin
CPC分类号: H05B6/66
摘要: An inverter circuit of a microwave oven employs a technique which decreases the unit manufacturing cost of production and controls an output of a magnetron correctly. The invert circuit includes a micom outputting a reference voltage preset by a user; an input current detector converting a current provided from the power source to a voltage level; and comparator comparing an output signal of the input current detector with the reference voltage; an integrator increasing or decreasing a level of an output signal for the comparator a trigger circuit connected to the high voltage transformer, and generating a trigger signal; and a PWM controller receiving an output signal of the integrator and an output al of the trigger circuit, for controlling drive of the magnetron.
摘要翻译: 微波炉的逆变器电路采用降低单位制造成本的技术,并且正确地控制磁控管的输出。 反相电路包括输出由用户预设的参考电压的微型计算机; 输入电流检测器,将从电源提供的电流转换为电压电平; 以及比较器,将输入电流检测器的输出信号与参考电压进行比较; 积分器,增加或减小所述比较器的输出信号的电平,所述触发电路连接到所述高压变压器,并产生触发信号; 以及PWM控制器,接收积分器的输出信号和触发电路的输出a1,用于控制磁控管的驱动。