Title :
Control of a switching regulator with a current-voltage feedback
Author :
Garabandic, Djordje ; Burany, Nandor
Author_Institution :
Inst. of Power & Electron Eng., Novi Sad Univ., Yugoslavia
Abstract :
The use of a current-voltage feedback for the control of buck switching regulators is proposed. Instead of the conventional current loop with comparator used by current injection control (CIC), the use of a proportional regulator in the current loop is suggested. The results of the theoretical analysis of the feedback circuit based on the small-signal model and computer simulation results for the large signal case are presented. The theoretical and simulation results are verified by measurements on a laboratory prototype. The advantages compared to CIC are that switching instability is eliminated and susceptibility to noise is lowered. An algorithm is included for the design of the proposed feedback circuit
Keywords :
circuit analysis computing; digital simulation; feedback; switched mode power supplies; voltage regulators; buck switching regulators; computer simulation results; current injection control; current-voltage feedback; laboratory prototype; noise susceptibility improvement; proportional regulator; regulator control; small-signal model; stability; theoretical analysis; Circuit noise; Circuit simulation; Computational modeling; Computer simulation; Feedback circuits; Laboratories; Proportional control; Regulators; Signal analysis; Virtual prototyping;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161796
