COMPARATIVE STUDY OF MULTIPLE CONTROLLER DESIGNS FOR HIGH FREQUENCY CONVERTER

This paper compares the performance of the high frequency converter with controller circuit and without controller circuit. The comparison is done in term of the output ripple voltage and current, output voltage and current and the body diode conduction loss. The reason to do this research is because at high frequency, the Pulse Width Modulator becomes less efficient and produces higher losses, therefore there is a need to find a new controller. The design is tested using a synchronous rectifier buck converter (SRBC) circuit with a switching frequency of 1 MHz. The design and simulation are done with the aid of PSpice software. At the end of the research, it is found that the Compensator with AGD produces the best result.