CAJ | 학술논문

分析了电子变压器工作原理和影响开关频率的因素。由于电子变压器是开环的桥式开关电源，提出了应用电磁特性实现电压和电流的反馈方法，其脉宽调制方式采用RS触发器型的PWM。基于电磁特性原理设计出一款输出90 W的稳压电源，其具有结构简单、体积小、成本低等优点。
분석료전자변압기공작원리화영향개관빈솔적인소。유우전자변압기시개배적교식개관전원，제출료응용전자특성실현전압화전류적반궤방법，기맥관조제방식채용RS촉발기형적PWM。기우전자특성원리설계출일관수출90 W적은압전원，기구유결구간단、체적소、성본저등우점。
The electronic transformer theory and the factors affecting the switching frequency were analyzed in detail. As the electronic transformer was an open-loop bridge switching power supply in essence, the method of the voltage and current feedback, which realized by electromagnetic property, was proposed. The pulse width modulation was the RS flip-flop PWM. Final y, based on the principle of the electromagnetic property, a 90 W power supply, which had advantages of the simple structure, the smal size, and low cost, was designed.