Patent ID: 9086715
Filing Date: 2015-07-21
Classification: G05F,H02M,H03G

Abstract:
1. A voltage regulator for use within an envelope tracking power supply system; the voltage regulator comprising a voltage regulation module; the voltage regulation module comprising: a first capacitor comprising a first terminal operably coupled to a first node of the voltage regulation module, and a second terminal operably coupled to a second node of the voltage regulation module; an input arranged to receive a supply voltage, the input being selectively couplable to the first node and selectively couplable to the second node; a ground plane selectively couplable to the second node; a switching output selectively couplable to the first node and selectively couplable to the ground plane; and a power filter formed by an inductor comprising a first terminal operably coupled to the switching output and a second terminal operably coupled to a regulated output voltage; and a second capacitor comprising a first terminal operably coupled to the regulated output and a second terminal operably coupled to the ground plane.