CAJ | 학술논문

传统的单管正激变换器由于磁芯复位导致占空比漂移限制， MOSFET 承受输入2倍或更多的电源电压，使其应用受到限制，而双管正激变换器具有开关管电压低、无桥臂直通危险、可靠性高及无需外加磁芯复位电路等优点，因而广泛应用在中大功率电路中。从双管正激变换器的原理入手，在 Saber 软件平台搭建一个中等功率（200 W~500 W ）双管正激变换器模型，并对搭建的变换器模型进行在线实时仿真与修改，最终得到了较为满意的效果。仿真结果不仅验证了前面所述双管正激变换器的优点，而且表明该模型对缩短开发周期、降低设计成本有显著的效果。
전통적단관정격변환기유우자심복위도치점공비표이한제， MOSFET 승수수입2배혹경다적전원전압，사기응용수도한제，이쌍관정격변환기구유개관관전압저、무교비직통위험、가고성고급무수외가자심복위전로등우점，인이엄범응용재중대공솔전로중。종쌍관정격변환기적원리입수，재 Saber 연건평태탑건일개중등공솔（200 W~500 W ）쌍관정격변환기모형，병대탑건적변환기모형진행재선실시방진여수개，최종득도료교위만의적효과。방진결과불부험증료전면소술쌍관정격변환기적우점，이차표명해모형대축단개발주기、강저설계성본유현저적효과。
For traditional single transistor forward converter, duty cycle drift is limited due to magnetic core reset, and MOSFET input is under 2 times or more of the power supply voltage, which maks its application is restricted. Double transistor forward converter has advantages of low voltage switch tube, no bridge arm through danger, high reliability, and without adscititious magnetic core reset circuit, which make it widely used in high power circuits. From the principle of double transistor forward converter, this article uses Saber software platform to build a model of secondary power (200 W~500 W) double transistor forward converter model, and the model of converter online real-time simulation are modification are done. Finally, the satisfactory results are obtained. The simulation results not only verify the advantages of double transistor forward converter stated earlier , but also show that the modle can shorten the development cycle and reduce design cost significantly.