The PFM is the front-end VI Chip for AC-DC power systems. It requires only a rectifier, input filter and an output capacitor to provide a high density, power factor corrected, 200 W power supply. The high operating frequency and soft switching allow miniaturization of power train components and make EMI filter components smaller than those required by lower frequency, hard switching converters. Output energy storage is accomplished at SELV levels providing packaging and interconnect flexibility not available with conventional AC Front Ends.