Title :
Simulation of PWM switching regulators using linear output predictions and corrections
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
fDate :
7/1/1997 12:00:00 AM
Abstract :
A time-domain simulation technique for the PWM switching regulators with output voltage feedback is presented. The regulator´s power stage is simulated by stepwise integration with progressive analysis of switches´ state. The feedback network is analyzed by formulating a difference equation defining its dynamics at each switching cycle. The prominent features of this method are the general way of looking for a valid switching topology in the power stage, the use of a simple numerical method for determining the gate signal which is applied to the main switch, and the use of simple algebraic manipulations only. The methodology is favorably compared with the available literature as it can be seen by simulating a practical switched-mode regulator
Keywords :
circuit analysis computing; circuit feedback; difference equations; pulse width modulation; switched mode power supplies; time-domain analysis; voltage regulators; PWM switching regulators; algebraic manipulations; difference equation; feedback network; linear output predictions; output voltage feedback; stepwise integration; switched-mode regulator; switching cycle; switching topology; time-domain simulation technique; Circuit simulation; Laplace equations; Network topology; Output feedback; Power electronics; Predictive models; Pulse width modulation; Regulators; Switches; Voltage;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
