Four quadrant MOSFET based switch

Details Four quadrant MOSFET based switch Four quadrant MOSFET based switch

2010-01-05

2011-11-22

Fleming, Fritz M (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Condition responsive

C307S125000, C307S115000

Reexamination Certificate

active

08063516

ABSTRACT:
An electronically controlled four quadrant MOSFET based switch in which a pair of drivers are provided in cooperation with a MOSFET. A first one of the drivers is arranged such that when current flow through the MOSFET is to be enabled responsive to a first condition of the control signal, the gate of the MOSFET is driven with an appropriate voltage, and when current flow through the MOSFET is to be disabled responsive to a second condition of the control signal, the gate is driven towards a limit voltage. A second one of the drivers is arranged such that when current flow through the MOSFET is to be enabled the body diode connection of the MOSFET is driven towards the potential of the MOSFET source, and when current flow through the MOSFET is to be disabled the body diode connection is driven towards the limit voltage.

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