Design and implementation of Type-II compensator in DC-DC switch-mode step-up power supply

DC-DC power supplies have taken place a prime role in various fields of engineering applications. Such applications demand steady, regulated source of voltage irrespective any changes in line and load. The compensators have taken place a key role for maintaining the accurate performance of converters dynamics in DC-DC power supplies. Some DC-DC power-supplies like boost (step-up), buck-boost etc have a right-half-plane zero ie. there is a problem of non-minimum phase, so it is difficult for the PID controller to exhibit good performance. For this reason a special kind of classical controller ie. Type-II compensator is introduced for obtaining better performance. This paper describes the designing of a Type-II compensator for a DC-DC step-up (boost) power supply.