Circuit for interfacing between a microprocessor and a plurality of power stages, particularly for controlling electro-injectors
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United States of America Patent
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Mar 16, 1993
Grant Date -
N/A
app pub date -
Nov 7, 1990
filing date -
Nov 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The interface circuit described comprises a plurality of control stages, each of which can detect and indicate a short-circuit in the corresponding load or the associated power transistor. In particular, the interface circuit is arranged to disable a transistor permanently when short-circuits occur repeatedly in the load in order to prevent damage to the transistor.
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