Title :
High efficiency PWM zero-voltage-transition boost converter: AC small signal analysis
Author :
Berkovich, Yefim ; Ioinovici, Adrian
Author_Institution :
Dept. of Electr. & Electron. Eng., Inst.-Holon, Israel
fDate :
6/1/2000 12:00:00 AM
Abstract :
A dc-dc boost converter operating under zero-voltage-transition conditions is presented. Its excellent performance deserves a detailed analysis. An equivalent circuit is derived in order to characterize the switching sequence. It contains an equivalent current source and an equivalent voltage source whose nonlinear functions take different forms for each switching topology. 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 :
Bode diagrams; DC-DC power convertors; PWM power convertors; SPICE; circuit simulation; equivalent circuits; stability criteria; time-domain analysis; transfer functions; AC small signal analysis; Bode characteristics; PSPICE simulation; PWM zero-voltage-transition boost converter; audio susceptibility; dc-dc boost converter; design-oriented stability criteria; equivalent circuit; equivalent current source; equivalent voltage source; nonlinear functions; small-signal closed-loop transfer functions; small-signal open-loop transfer functions; switching sequence; switching topology; time-domain response; Circuit topology; DC-DC power converters; Equivalent circuits; Performance analysis; Pulse width modulation; Pulse width modulation converters; Stability criteria; Switching circuits; Transfer functions; Voltage;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
