Soft start circuit
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United States of America Patent
Stats
-
Nov 5, 1991
Grant Date -
N/A
app pub date -
Feb 8, 1991
filing date -
Feb 8, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A soft start circuit for hot installation of modules into an active bus. A very low R.sub.ds MOSFET provides bias through its drain to source path from a bus supply. This path is activated by a gate bias network which charges a capacitor from a supply located on the bus. Further control of the module supply is obtained by circuitry which permits addressing of the module to turn it off or on, temperature sensing to provide thermal protection and current sensing to provide short circuit protection.
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