Properties and characteristics of voltage-fed singlestage converters

The properties and characteristics of voltage-fed AC-DC single-stage PWM converters are reviewed in this paper. This is done with respect to the primary-side DC bus voltage, which is a critical parameter in these types of converters. The operation of two single-stage converters - a forward converter and a full-bridge converter - is examined in detail. Observations and conclusions are made on the basis of results obtained from computer simulation and from an experimental prototype