Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1975-10-20
1976-11-02
Grimm, Siegfried H.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
318696, 328 44, 328 46, 328 48, 328 49, G05B 1940, H03K 2136
Patent
active
039900142
ABSTRACT:
The pulse control circuit comprises an up-counter, a pulse generator connected to supply a pulse train having a fixed repetition rate to the up-counter to cause it to count-up to a preset count, a detector connected to the output of the up-counter, a gate circuit responsive to the output of the detector for controlling the input of a preset count to the up-counter, an up-down counter connected to supply the preset count to the up-counter through the gate circuit, a variable pulse generator connected to a count modifying input terminal of the up-down counter for changing the count stored therein, means for storing a preset count in the up-down counter, and means for varying the repetition rate of the output pulses supplied by the variable pulse generator and for controlling the direction in which the up-down counter operates to either add to or substract from a preset count stored in the up-down counter to thereby control the period between the output pulses produced by the pulse control circuit.
REFERENCES:
patent: 3809990 (1974-05-01), Kuo et al.
Grimm Siegfried H.
Helzer Charles W.
Mitsui Shipbuilding and Engineering Co. Ltd.
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