Steady-state and dynamic analysis of a buck converter using a hysteretic PWM control

In this paper, steady state and dynamic analysis of a buck converter using a hysteretic PWM control scheme is presented. Since the proposed control scheme only uses a comparator with hysteresis and a feedback resistor, numbers of components in a control circuit are reduced. In addition, no error amplifier is used, thus the stability of the converter becomes excellent. The steady state and dynamic analysis of the proposed converter is performed and verified by experiments. We proved that the proposed control scheme has no phase lag and shows excellent transient response.