Buck zvs - mr - tl converter is taken as the examples to illustrate the operation of the zvs - mr - tl converters . the operation of buck zvs - mr - tl converter is analyzed as well as parameter design , realization of pulse - frequency - modulation ( pfm ) interleaved control and comparison between zvs - mr converters and zvs - mr - tl converters . a 1000w prototype converter is built in the lab to verify the effectiveness of the proposed converter 本文以buck零电压开关多谐振三电平变换器为例,详细分析了它的工作原理、参数设计、脉频调制交错控制的实现、与常规的多谐振变换器的对比,并以一个1000w的原理样机对该变换器进行实验验证。