An evaluation of the practicality of sliding mode controllers in DC-DC converters and their general design issues

This paper examines the practical design issues of sliding mode controllers as applied to the control of DC-DC converters. A comprehensive review of the relevant literature is first provided. Major problems that prevent the use of sliding mode control in DC-DC converter for industrial applications and their possible solutions are discussed. Performance of sliding mode control is compared with that of conventional PWM control in terms of transient characteristics. It is shown that the use of sliding mode control can lead to improved robustness in providing consistent transient responses over a wide range of operating conditions.