Generation of phase shifted PWM and phase shifted sawtooth signals utilizing FPGA for controlling of power converters

Power converters deals with high input power as well as high output power. Pulse Width Modulation (PWM) is mostly used technique to control the power converters. A combination of several power converters like in multiphase converter are used to obtain a high efficiency output with decreased current ripple and voltage ripple. In this paper phase shifted PWM signals for open loop control and phase shifted saw tooth signals for closed loop control are generated utilizing FPGA in order to control the combination of power converters. In this dissertation two 180° phase shifted PWM and two 180°sawtooth signal of frequency 50 KHz are generated.