[Presses Polytech. Univ. Romandes ISCAS 2000 Geneva. 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings - Geneva, Switzerland (28-31 May 2000)] 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353) - On the use of the describing function in fuzzy controller design for switching dc-dc regulators