CAJ | 학술논문

目前在桥式电路中上桥臂的驱动电路常采用自举驱动，由于各桥臂使用的是同一组电源因此相互之间存在着干扰，当参数选取不够合理时还会出现较高的电压尖峰损坏驱动芯片和开关管，在对驱动电路要求严格的场合通常需要为每个桥臂提供独立电源。目前市场上隔离 DC/DC 的产品较多，但专门为隔离驱动而设计的隔离 DC/DC 产品还比较少。通过对功率 MOSFET 和 IGBT 开通特性和关断特性的研究，得出了功率 MOSFET 和 IGBT 对驱动电路的要求。设计了一种带隔离 DC/DC，适用于功率 MOSFET和 IGBT 隔离驱动电路。并通过实验测试了该驱动电路的性能。
목전재교식전로중상교비적구동전로상채용자거구동，유우각교비사용적시동일조전원인차상호지간존재착간우，당삼수선취불구합리시환회출현교고적전압첨봉손배구동심편화개관관，재대구동전로요구엄격적장합통상수요위매개교비제공독립전원。목전시장상격리 DC/DC 적산품교다，단전문위격리구동이설계적격리 DC/DC 산품환비교소。통과대공솔 MOSFET 화 IGBT 개통특성화관단특성적연구，득출료공솔 MOSFET 화 IGBT 대구동전로적요구。설계료일충대격리 DC/DC，괄용우공솔 MOSFET화 IGBT 격리구동전로。병통과실험측시료해구동전로적성능。
At present, the upper arm drive circuit in the bridge circuit is often used bootstrap drive, besause of each arm using the same set of power. Accordingly there is therefore interfere with each other, while parameter selection is not reasonable when there will be higher voltage spikes damage the driver chip and switch, the drive circuit in demanding situations usually require separate power supply for each leg. Currently on the market isolation DC / DC more products, but designed specifically for isolated drive isolated DC / DC products is still relatively small. Through the study of the power MOSFET and IGBT turn-off characteristics and properties, obtained power MOSFET and IGBT drive circuits. Designed a isolated DC / DC, suitable for power MOSFET and IGBT driver circuit isolation. By experimental tests the performance of the drive circuit.