Input module
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United States of America Patent
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-
Dec 14, 1993
Grant Date -
N/A
app pub date -
Oct 3, 1990
filing date -
Jan 23, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An input module used in a factory automation apparatus, which is constituted by a bidirectional conduction circuit for connecting to an AC power source or DC power source with both plus or minus common line, a constant current circuit for supplying constant current, and a load circuit accepting the constant current. When the voltage range is less wide, a bidirectional conduction circuit and a filter circuit are used.
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