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该机开关电源采用日本三肯公司制造的混合厚膜集成电路STR—F6654,其内部含有MOS型场效应开关管和相应的控制电路。由STR—F6654组成的该电源电路为开机/待机单电源电路:在正常开机时,它工作在宽脉冲方式,输出功率较大,主电源输出为130V;在待机状态时,电源工作在窄脉冲方式,转换为小功率欠压状态,这时电源输出电压降至正常值的一半。由STR—F6654构成的开关电源电路具有结构简单、工作
The switch power supply using Japan’s three Ken companies hybrid thick film integrated circuit STR-F6654, which contains the MOS-based field-effect switch and the corresponding control circuit. The power circuit consists of STR-F6654 power / standby single power supply circuit: In normal boot, it works in a wide pulse mode, the output power is larger, the main power output is 130V; in standby mode, the power supply work in a narrow pulse Way, converted to low-power undervoltage condition, then the power output voltage dropped to half the normal value. The STR-F6654 switching power supply circuit with a simple structure, work