Patent ID: 6396340
Filing Date: 2002-05-28
Classification: H03F

Abstract:
An RF power amplifier system comprising:an RF source providing an RF carrier signal having a given RF carrier frequency; an RF amplifier module that amplifies said carrier signal and wherein said module includes first and second RF amplifiers having a common input to receive a turn on signal to turn on both amplifiers and having their outputs coupled together in parallel; a controller that supplies a said turn on signal to said common input to turn on said first and second amplifiers; a first AC to DC supply for supplying a first DC operating voltage from a first multi-phase AC supply to said module and wherein said first DC voltage exhibits a ripple frequency dependent upon the number of phases in said first multi-phase supply; and, a second AC to DC supply for supplying second DC operating voltage from a second multi-phase AC supply to said module and wherein said second DC operating voltage exhibits a ripple frequency dependent upon the number of phases in said second multi-phase supply.