Patent ID: 7598632

Claim:
A power supply for an at least one RLC resonant load, the power supply comprising: an ac to dc rectifier having a rectifier input connected to an ac source and a rectifier dc output; at least one charge storage device connected to the rectifier dc output; at least one regulator, each of the at least one regulators having a regulator output with a regulator dc output period and a variable output duty cycle within the regulator dc output period, each of the at least one regulators connected to the at least one charge storage device; at least one current storage device, each of the at least one current storage devices exclusively connected to the regulator output of one of the at least one regulators; and at least one inverter, each of the at least one inverters having an inverter input exclusively connected to one of the at least one current storage devices, each of the at least one inverters having an inverter ac output exclusively connected to one of the at least one RLC resonant loads, the inverter ac output period of each one of the at least one inverters equal to twice the regulator output period of the at least one regulator connected to the at least one current storage devices connected to the inverter input of each one of the at least one inverters.