Title :
Steady-state analysis of PWM DC-to-DC regulators
Author :
Femia, Nicola ; Spagnuolo, Giovanni ; Vitelli, Massimo
Author_Institution :
Salerno Univ., Italy
Abstract :
A new method for steady-state analysis of pulsewidth modulation (PWM) hard-switching DC-to-DC regulators is presented. The power stage and the feedback control circuit are analyzed as two interconnected blocks. The intersection of their open-loop DC steady-state characteristics with the ramp voltage provides a guess candidate steady-state solution (CS). An iterative process is used to validate it as true steady-state solution (TS) when the bias conditions of switching devices (SDs) are fulfilled everywhere in the switching period.
Keywords :
DC-DC power convertors; PWM power convertors; circuit feedback; iterative methods; network topology; nonlinear network analysis; switching convertors; time-domain analysis; voltage regulators; PWM DC-to-DC regulators; bias conditions; feedback control circuit; hard-switching regulators; interconnected blocks; iterative process; open-loop DC steady-state characteristics; power stage circuit; pulsewidth modulation regulators; ramp voltage; steady-state analysis; Circuit analysis; Frequency domain analysis; Power electronics; Pulse width modulation; Pulse width modulation converters; Regulators; Steady-state; Switching converters; Time domain analysis; Voltage;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2003.1188913
