Comparative performance evaluation of current-mode controls adapted to asymmetrically-driven bridge-type pulse-width modulated DC-to-DC converters

Three different current-mode control schemes, peak current-mode control, charge control, and average current-mode control, are investigated for the applications to asymmetrically-driven bridge-type pulse-width modulated DC-to-DC converters. The principles, implementation, and performance of the three control schemes are compared in an attempt to identify their respective merits and limitations. Design examples for feedback compensations are given for the three control schemes. The theoretical predictions of this paper are supported by computer simulations and experimental results