Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1996-07-30
1998-10-13
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
307126, 307139, 307140, 361193, 364492, 3642735, 395280, 395311, H01H 3500
Patent
active
058216413
ABSTRACT:
A device for enabling and disabling the supply of power from a power source to a computer, the power source having a primary side and a secondary side, the device including an interlock switch connected to the computer, the interlock switch selectably positionable between open and closed positions; and two optocouplers coupled in parallel, both of which are referenced to the secondary side of the power source. When the interlock switch is closed, the first optocoupler is active. This enables the supply of power from the power source to the computer. When the interlock switch opens, the first optocoupler shuts off. This disables the supply of power from the power source to the computer. Further when the interlock switch is opened, the second optocoupler is saturated. This overrides the regulation feedback circuitry from regulating the power supplied by the power source driving the power outputted to the computer to zero. When the interlock switch is closed, the second optocoupler operates in the linear region. This enables the regulation feedback circuitry to regulate the power supplied by the power source to the computer.
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Demo Frank J.
Stanford Edward R.
Compaq Computer Corp.
Ganjian Peter
Shoop Jr. William M.
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