Overview, equivalences and design guidelines of v¹ concept: A voltage mode control that behaves as a current-mode with near time-optimal response

Abstract

Abstract-This paper summarizes the proposed v 1 concept, that explains how by only measuring the output voltage, designers have information about almost every signal of the power stage. Following the v 1 concept, the implementation of some ripplebased controls as a conventional voltage mode control or current mode control is studied. Based on these, it is explained how to design a traditional type-Ill voltage mode control to behave like a current mode control with near time-optimal response under load transients. The work is validated in simulations and experimentally on a 300kHz Buck converter.