A Controller Design for Switching Regulator Using an Optimal Output PIM Control with Feedforward Comensation

입력보상 및 최적 출력 PIM 제어를 적용한 스위칭 직류 변환기의 제어기 설계

This paper describes a design method for the buck type switching regulator to improve transient and steady state performances. Necessary design considerations on the power stage are given before designing the controller to obtain better trandient responses with less control effort and a feedforward compensation is also given to effectively improve the steady state performance. In the design of the controller, a PIM (proportional-integral-measurable) control method with optimized constant feedback gains is presented to get better tansient and steady state performances without complicating the implementation of controller. Computer simulations and experimental results are given to show the usefulness of the presented technique.