主要介绍了一个应用在真空感应精密铸造炉上的IGBT串联谐振式中频电源改造方案。电力开关元件、调功方式、IGBT驱动保护电路设计等关键点的方案比较及选择。最后,经实施验证,方案成功有效。 Mainly introduced a vacuum induction casting furnace IGBT series resonant frequency power transformation program. Power switch components, power regulation, IGBT drive protection circuit design and other key points of the program comparison and choice. Finally, after the implementation of verification, the program is successful and effective.