Portable computer containing bidirectional current blocking MOSF

Details Portable computer containing bidirectional current blocking MOSF Portable computer containing bidirectional current blocking MOSF

1998-01-14

2000-07-11

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307131, H01H 4700

Patent

active

060877405

ABSTRACT:
A bidirectional current blocking switch is disclosed. The switch includes a four-terminal MOSFET in which there is no source-body short. The voltages applied to the source and drain terminals are both higher than the voltage applied to the body terminal (for an N-channel) device so that the source-body and drain-body junction of the MOSFET never become forward-biased. The switch of this invention is particularly useful for switching a cascaded set of batteries in a portable computer.

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