Expanded time constant condition control system
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United States of America Patent
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-
Apr 1, 1980
Grant Date -
N/A
app pub date -
Jan 27, 1978
filing date -
Jan 27, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A condition responsive time proportional control means which has a relatively fast time constant when operating in its proportional band has the time constant expanded by means of a digital counter. The counter is repetitively switched by the condition responsive means and counts the switched operation. During the period that the switched operation is occurring, the time constant is expanded by simultaneously counting pulses from a pulse generating means.
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