Method and apparatus allowing hot replacement of circuit boards
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United States of America Patent
Stats
-
Jun 10, 1997
Grant Date -
N/A
app pub date -
Mar 17, 1995
filing date -
Mar 18, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit board that can be replaced or removed for repair from an information processing device, and which can be reinstalled without allowing backup-mode power to reach circuits on the circuit board during reinstallation. The circuit board for the information processing device includes a load that is mounted on the circuit board and that is supplied with normal or backup power. A switch is coupled to the load and has a first state that allows the backup power to be supplied to the load and a second state in which the backup power is inhibited from being applied to the load when either normal power is supplied to the load or no power is supplied to the circuit board.
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