Overvoltage and overtemperature protection circuit
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United States of America Patent
Stats
-
Oct 6, 1987
Issued Date -
N/A
app pub date -
Feb 4, 1986
filing date -
Sep 23, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An overvoltage and overtemperature protection circuit that includes an output thyristor fabricated in monolithic integrated circuit form is provided. The thyristor comprises a P-type substrate serving as an anode and diffused cathode and gate region wherein the current flows vertically, optimizing the high voltage and high current capability. A thermal limit circuit is provided for triggering the thyristor when a designated temperature is exceeded. The output thyristor will shunt the output voltage to ground whenever the predetermined voltage or temperature is exceeded.
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