Circuit arrangement for the control of a digitally settable load

Details Circuit arrangement for the control of a digitally settable load Circuit arrangement for the control of a digitally settable load

1978-05-24

1980-09-02

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92EV, 235 92CT, 235 92MP, G06M 314

Patent

active

042208491

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.

REFERENCES:
patent: 3665323 (1972-05-01), Peterson
patent: 3835384 (1974-09-01), Liff
patent: 3843873 (1974-10-01), Beville et al.
patent: 3968401 (1976-07-01), Bryant
patent: 4065720 (1977-12-01), Pogue

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