Patent ID: 7187562

Claim:
A power conversion circuit, comprising: an unregulated isolated board mounted power module operable to convert a nominal input voltage into an intermediate bus voltage, the isolated board mounted power module having at least one pair of MOSFETS connected in series in a bridge configuration across the nominal input voltage, the power module being operated in an open-loops, a primary open-loop inversion circuit having a controller IC for driving the at least one pair of MOSFETS, the controller IC being operable to alternatively control the pair of MOSFETS with a 50% duty cycle, and a timing resistor and a timing capacitor, wherein a dead-time and a switching frequency of the controller IC being adjustable in accordance with values of the timing resistor and the timing capacitor; and a plurality of tightly regulated point-of-load converters operable to convert the intermediate bus voltage into respective point-of-load voltages to power a respective number of loads.