Tuned-average current-mode control of constant frequency DC/DC converters

This paper presents an original method for inductor current control of constant-frequency DC/DC converters operating in continuous current mode. it includes information about voltage in current loop. Its main features are stable operation over full range of duty cycle variations without subharmonic oscillations, fast dynamic response and inherent short-circuit protection. Therefore, no artificial means of stabilizing should be provided as with peak current-mode control. Excellent dynamic responce is achieved compared to other existing control methods. Implementation is simple and advantageous, Since tile converter is of a discrete nature, its sampled-data model is analyzed and small-signal analysis is performed. Experimental model of buck converter is tested, and the results of it's transient responce are obtained. Boost and buck-boost converters are analyzed and the results are briefly reviewed.