In this paper a new method of steady-state analysis of feedback-regulated PWM hard-switching DC-to-DC converters (Hard-Switching Regulators - HSR) is presented. The power stage and the feedback control circuit forming the HSR are modeled separately and analyzed as two interconnected blocks. The intersection of the open loop DC steady-state characteristics of these cascaded blocks with the ramp voltage provides a suitable starting solution of the duty-cycle, thanks to which a guess Candidate steady-state Solution (CS) is determined. The CS approaches the True steady-state Solution (TS) through an iterative process of validation. An example of application is presented.
Steady-state analysis of PWM DC-to-DC regulators
EGIZIANO, Luigi;FEMIA, Nicola;SPAGNUOLO, Giovanni;
2003-01-01
Abstract
In this paper a new method of steady-state analysis of feedback-regulated PWM hard-switching DC-to-DC converters (Hard-Switching Regulators - HSR) is presented. The power stage and the feedback control circuit forming the HSR are modeled separately and analyzed as two interconnected blocks. The intersection of the open loop DC steady-state characteristics of these cascaded blocks with the ramp voltage provides a suitable starting solution of the duty-cycle, thanks to which a guess Candidate steady-state Solution (CS) is determined. The CS approaches the True steady-state Solution (TS) through an iterative process of validation. An example of application is presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
