基于igbt的软开关自振荡DC-DC变换器

Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI:10.1109/IAS.1992.244447

P. Theron, P. H. Swanepoel, J. Schoeman, J. V. van Wyk, J. Ferreira

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引用次数: 2

摘要

介绍了基于软开关自振荡绝缘栅双极晶体管(IGBT)的DC-DC变换器的特点和优点。该系列自振荡逆变器的主要特点包括:具有最小元件计数的全桥自振荡逆变器;极高的效率，即使在超声波开关频率;零电压开关，电磁干扰小;输出短路自动保护;当一个开关因过热而失效时，自动保护所有其他开关;自动保护，防止同一逆变器腿的两个开关同时误开;开关的电流和电压可忽略不计的高估;与电力变压器相比，饱和变压器的VA额定值可以忽略不计

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Soft switching self-oscillating IGBT-based DC-DC converters

The characteristics and advantages of soft switching self-oscillating insulated-gate bipolar transistor (IGBT)-based DC-DC converters are described. The main features offered by this family of self-oscillating inverters include: a full-bridge self-oscillating inverter having a minimum component count; extremely high efficiency, even at ultrasonic switching frequencies; low electromagnetic interference due to zero voltage switching; automatic protection against short-circuit output; automatic protection to all other switches during failure of one switch due to overheating; automatic protection against spurious simultaneous turn-on of two switches in the same inverter leg; negligible overrating of the switches for current and voltage; and negligible VA rating of the saturating transformer compared to the power transformer.<>

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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting

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