Patent ID: 8797009
Filing Date: 2014-08-05
Classification: H02M,H03K,Y02B

Abstract:
1. A voltage converter comprising: a power switch, coupled between a source of battery potential and a source of reference operating potential, the power switch having respective charging and discharging control terminals configured to receive respective charging and discharging control signals, and an output terminal; an inductor connected in series with a capacitor, the series connected inductor and capacitor being coupled between the output terminal of the power switch and the source of reference operating potential; a charging switch having an output terminal coupled to the charging control terminal of the power switch; a discharging switch having an output terminal coupled to the discharging control terminal of the power switch; a pulse width modulation (PWM) controller controlling the charging switch and discharging switch; a feedback loop directly connecting a node at which the capacitor and inductor are connected to the power switch, charging switch and discharging switch exclusive of the PWM controller, wherein during a charging phase, the charging switch electrically couples the capacitor to the charging control terminal of the power switch, whereby the power switch charges the inductor, and wherein during a discharging phase, the discharging switch electrically couples the capacitor to the discharging control terminal of the power switch, whereby the power switch discharges the inductor.