Circuit arrangement for the control of a digitally settable load
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United States of America Patent
Stats
-
Sep 2, 1980
Grant Date -
N/A
app pub date -
May 24, 1978
filing date -
May 24, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A manually operated direct-current generator, with an output voltage whose polarity and magnitude depend on the direction and speed of rotation of a control knob, charges a storage capacitor in an input circuit of an operational amplifier which works into two comparators respectively responsive to positive and negative voltages exceeding selected thresholds. A triggerable pulse source, upon actuation by either comparator, feeds back one or more discharge pulses to the storage capacitor and also steps a reversible pulse counter in either a forward or a reverse sense.
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