This paper discusses the circuit topology, steady principle, the three-state Discrete Pulse Modulation ( DPM) hysteresis current control strategy, principle of current sharing and criteria for the key circuit parameters of parallel inverter with high frequency and soft switch constituted in master-slave mode. 分析研究了主从模块法并联高频软开关逆变电源的电路拓扑、稳态原理、三态离散脉冲调制(DiscretePulseModulation,DPM)电流滞环控制技术、均流原理和关键电路参数设计。