Rush current prevention circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 18, 1992
Grant Date -
N/A
app pub date -
Sep 6, 1990
filing date -
Sep 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A second circuit to which back-up power is supplied, such as a RAM, is connected downstream of a first circuit to which no back-up power is supplied, such as a CPU. A gate circuit inhibits the output signal of the first circuit to the second circuit and provides a predetermined level to the second circuit when the output signal of the first circuit is at an indefinite level and prevents a penetration current from flowing through the second circuit.
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