Patent ID: 8063516
Filing Date: 2011-11-22
Classification: H02M,H03K

Abstract:
1. An apparatus comprising: a metal oxide semiconductor field effect transistor (MOSFET); a first driver exhibiting an input responsive to a control signal and an output coupled to the gate of said MOSFET, said first driver arranged to apply a predetermined voltage to the gate of the MOSFET responsive to a first condition of the control signal, said predetermined voltage selected to enable current flow through the channel of the MOSFET, and to apply a limit voltage to the gate of the MOSFET responsive to a second condition of the control signal, said limit voltage consonant with the most extreme voltage experienced by the drain of said MOSFET when reverse biased in relation to the source of said MOSFET; and a second driver exhibiting an input responsive to the control signal and an output coupled to the body connection of the MOSFET, said second driver arranged to apply a potential consonant with the potential of the source of the MOSFET to the body connection of said MOSFET responsive to the first condition of the control signal, and to apply the limit voltage to the body connection of said MOSFET responsive to the second condition of the control signal, wherein said MOSFET, said first driver and said second driver constitute an electronically controlled switch.