Computer-aided optimum design of a buck-type switching regulator

A computer-aided optimum design for a buck-type switching regulator is presented; this design method provides the smallest values of an inductance and a capacitance in the converter circuit and optimum values of three parameters of the phase compensators in the feedback circuit from specified conditions. The design principle is based on the optimization of phase compensators by introducing a performance index and on the minimization of filter elements in the converter circuit. Calculation methods employ the analytical results of the small-signal and large-signal analyses by the state-space averaging method, and good computation efficiency is obtained even by small computers.<>