Weaver Austin Villeneuve & Sampson LLP
Virtual output voltage sensing for feed-forward control of a voltage regulator
Disclosed are devices, apparatus, circuitry, components, mechanisms, modules, systems, and methods for virtual output voltage sensing for feed-forward control of a voltage regulator. A buffer has an input coupled to sense a monitored signal indicating a duty cycle of switch circuitry coupled to an output filter of the voltage regulator. The buffer is configured to provide at an output, responsive to the monitored signal, a buffer output signal having a high reference voltage for a high side on time and a low reference voltage for a low side on time of the switch circuitry. A filter is coupled to receive and filter the buffer output signal to provide a feed-forward signal indicating the output voltage of the voltage regulator. Control circuitry is configured to control the switching of the switch circuitry responsive to the feed-forward signal.
Volterra Semiconductor Corporation
H G H Y H
H02M G05F H02M Y02B H02M
inventional inventional additional additional additional
Joel Seth Jingquan
Tang Kahn Chen