Adaptive delta modulation controller for interleaved buck DC-DC converter

In this paper, a novel adaptive delta modulation (ADM) control scheme is proposed as a driver for an interleaved DC/DC power converter, analysis of the converter is carried out in order to achieve the required system stability and to improve the dynamic performance. The output response characteristics obtained by this method is very much improved compared to the conventional methods. The proposed adaptive control scheme is verified on a 42V/14V interleaved DC/DC synchronous buck converter system. Simulation results are presented to illustrate the advantages of the proposed method. The performance of the DC/DC converter system with ADM control loop provides a number of features that do not exist in today's electrical systems like very vast response. the simulation results are presented to fully demonstrate the theoretical analysis and the performance comparison of response between PWM with PID controller, simplified sigma delta modulation (SDM) control loop and the proposed ADM control loop.