Patent ID: 9590574
Date: 2017-03-07
CPC Classifications: H02M,H03F,Y02B

Claim:
1. A switched-power circuit, comprising: a switching output stage comprising a pair of transistors including a first transistor and a second transistor controlled by a switching control circuit, wherein the switching control circuit controls the pair of transistors such that in a non-overlap time period between a change in polarity of an output voltage of an output terminal of the switching output stage, neither of the pair of transistors is fully on; a current source for providing an output current to the output terminal during the non-overlap time period to control the output voltage before the first transistor is turned fully off and before the second transistor is turned on; a non-zero resistance coupled between a gate of the first transistor and a drain of the first transistor; and a voltage sensing circuit for comparing a voltage of the gate of the first transistor to another voltage level and providing an output signal to an input of the switching control circuit, wherein the output signal provides an indication of a current conducted by the drain of the first transistor.