摘  要：三电平高压变频器对IGBT驱动电路有特殊的要求，比如：高低压侧的隔离问题、绝缘等级、动态驱动能力以及快速保护功能都有严格的要求。采用美国Unitrode公司生产的UC3726/3727驱动IGBT芯片对，两芯片可组合使用，从而可以达到理想的驱动效果。测试结果表明了该方法的可行性。
关键词：三电平高压变频器；IGBT；UC3726；UC3727

Abstract: Tri-level high voltage inverter has special requirements for IGBT driver circuit, such as isolated problem between high-side and low-side, insulation level, dynamic drive ability and rapid protection function. Adopting UC3726/UC3726 IGBT driver IC pairs, made in Unitrode Corporation from USA, can achieve ideal drive effect. And the test results show that this method is feasible.
Key words: tri-level high voltage inverter; IGBT; UC3726; UC3727