Patent ID: 8542055
Filing Date: 2013-09-24
Classification: H02M,H03K

Abstract:
1. A circuit comprising: a field effect transistor having a conducting state and a non-conducting state, the field effect transistor having a gate, a source, and a drain; a first comparator configured to provide a first output based on a difference between a source voltage at the source of the field effect transistor and a first reference voltage, wherein the first output includes a first signal when the source voltage is higher than the first reference voltage and a second signal when the source voltage is lower than the first reference voltage; a switching amplifier configured to apply a first gate voltage to the gate of the field effect transistor in response to the first comparator providing the first signal and a second gate voltage to the gate of the field effect transistor in response to the first comparator providing the second signal, wherein both the first and second gate voltages are configured to place the field effect transistor in a conducting state; wherein the switching amplifier comprises: wherein the first gate voltage is higher than the second gate voltage.