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

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 ripple-based 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-III 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.