Title :
Step load response of a current-mode-controlled DC-to-DC converter
Author_Institution :
Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea
Abstract :
This paper analyzes the step load response of a current-mode-controlled pulsewidth modulation (PWM) converter and also presents design guidelines for obtaining a good step load response. Analytical expressions for the step load response are derived in terms of the power stage and feedback compensation parameters. Control design to minimize the overshoot and settling time of the output voltage is presented. Analysis results are verified by large-signal simulations.
Keywords :
DC-DC power convertors; PWM power convertors; compensation; control system analysis; control system analysis computing; control system synthesis; digital simulation; electric impedance; feedback; simulation; step response; DC-to-DC converter; PWM; control design; current-mode-control; design guidelines; feedback compensation parameters; impedance analysis; large-signal simulation; nonlinear model; output voltage; overshoot; power stage; pulsewidth modulation converter; settling time; step load response; Analytical models; Buck converters; Control design; DC-DC power converters; Feedback loop; Gain measurement; Guidelines; Impedance; Pulse width modulation; Pulse width modulation converters; Voltage control;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
