Patent ID: 7408795

Claim:
A method of converting power from an AC source for delivery to a system including a load, the method comprising: providing a power converter module (“PCM”) having input terminals for receiving power from the source, output terminals for delivering power to a load at a regulated DC voltage, and power conversion circuitry, the PCM being a self-contained assembly adapted to be installed as a unit; the power conversion circuitry comprising DC-DC voltage transformation (“VT”) circuitry and power regulation (“PR”) circuitry; the VT circuitry having a VT input connected to the input terminals and a VT output for delivering power to the PR circuitry and having DC-DC switching power conversion circuit adapted to deliver a DC output voltage at the VT output that is an essentially fixed fraction of and galvanically isolated from the DC voltage delivered to the VT input; the PR circuitry having an output connected to the output terminals and providing output regulation; providing a capacitive energy storage component for the power conversion circuitry, the capacitive energy storage component being isolated from the source and external to the PCM.