Title :
Dynamic model of PWM zero-voltage-transition DC-DC boost converter
Author :
Berkovich, Y. ; Ioinovici, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Center for Technol. Educ., Holon, Israel
Abstract :
An equivalent dynamic model of a ZVT boost-converter previously published by the authors is the subject of present paper. The model contains an equivalent current source and an equivalent voltage source whose nonlinear functions take different forms for each switching topology. The model serves for an AC small-signal analysis. The small-signal open-loop and closed-loop transfer functions, including the audio susceptibility are derived. Design-oriented stability criteria are formulated. The theoretical time-domain response and Bode characteristics are checked by experiments or PSPICE simulation
Keywords :
DC-DC power convertors; PWM power convertors; circuit stability; equivalent circuits; nonlinear network analysis; stability criteria; switching circuits; time-domain analysis; transfer functions; AC small-signal analysis; Bode characteristics; PSPICE simulation; PWM DC-DC boost converter; ZVT boost-convertor; audio susceptibility; closed-loop transfer functions; design-oriented stability criteria; equivalent current source; equivalent dynamic model; equivalent voltage source; nonlinear functions; open-loop transfer functions; small-signal transfer functions; switching topology; time-domain response; zero-voltage-transition; DC-DC power converters; Diodes; Pulse width modulation; Pulse width modulation converters; Resonance; Steady-state; Switches; Switching converters; Timing; Voltage;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.777558
