High-Frequency Link Inverter for Fuel CellsBased on Multiple-Carrier PWM

• 来源期刊: 变频器世界
• 学科: 工学
• 关键词: MOSFET 场效应器件 PWM SCR
• 年，卷（期）: bpqsj_2005,（1）
• 页码范围: 45-46
• 页数: 2页
• 分类号: TN386

摘要

A similar circuit as Fig. 12 can be realized with MOSFET or IGBT devices configured as bi-directional pairs in the output bridge. In this case, the complete process in Fig. 8 would be needed to generate the complete 50% gate drive pulses. The 50% gate pulses still support pulse transformer coupling, retaining the simplicity of the gate drive isolation. The PWM cycloconverter process scales directly to higher switching speeds possible with these devices.