Title :
A unified equivalent circuit analysis of quasi resonant converters: high frequency network averaging
Author :
Lin, Botao ; Qiu, Shui-Sheng
Author_Institution :
Dept. of Radio Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
An approach of High Frequency Network Averaging (HFNA) is presented for analysis of Quasi Resonant Converters (QRC´s). The elements whose currents (or terminal voltages) vary very fast are replaced by dependent sources controlled by low-frequency variables and nonlinear structure-invariant equivalent circuits of QRC´s can be obtained. This new approach and its resulting models are circuit-oriented and helpful to the analysis and design of QRC´s
Keywords :
PWM power convertors; equivalent circuits; resonant power convertors; PWM converters; circuit-oriented approach; high frequency network averaging; nonlinear structure-invariant equivalent circuits; quasi resonant converters; terminal voltages; unified equivalent circuit analysis; voltage mode boost type resonant converter; Circuit analysis; Equivalent circuits; Frequency conversion; Pulse width modulation; Pulse width modulation converters; Radiofrequency integrated circuits; Resonance; Resonant frequency; Switches; Voltage;
Conference_Titel :
Industrial Technology, 1994., Proceedings of the IEEE International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
0-7803-1978-8
DOI :
10.1109/ICIT.1994.467210
