H - Electricity – 02 – J
Patent
H - Electricity
02
J
323/5
H02J 9/06 (2006.01)
Patent
CA 1279098
SELECTIVE CONNECTION OF POWER SUPPLIES Abstract of the Disclosure A circuit for selectively connecting or disconnect- ing one of two power supplies, connected in parallel, in the event of the failure of one of the power supplies. The mechanism used is a MOSFET inserted "backwards" in a control circuit such that when the MOSFET is turned "off" no current drain is permitted through the diode internal to the MOSFET. Such a method provides fast switching and may be employed in other circuits as a replacement for relays.
552410
Cowan Michael L.
Goodman David C.
Northern Telecom Limited
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