Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1978-09-26
1980-05-20
Smith, Jr., David
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318563, 318681, H02P 728
Patent
active
042041430
ABSTRACT:
A solid state electronic circuit for controlling a reversible direct curr motor from a voltage source such that it may be rotated in either direction. The reversible direct current motor is connected into a bridge circuit with semiconductor switching elements which provide that the full supply voltage is available for starting in either direction. A pair of comparators receives input signals from a triangular wave generator and a signal source and in conjunction with a cross-fire protection circuit generates the drive pulses which control the semiconductor switching elements.
REFERENCES:
patent: 3260912 (1966-07-01), Gregory
patent: 3427520 (1969-02-01), Oppedahl
patent: 3428880 (1969-02-01), Muller
patent: 3477004 (1969-11-01), Westbrook
patent: 3480849 (1969-11-01), Thornsen et al.
patent: 3496441 (1966-10-01), Heider et al.
patent: 3525029 (1970-08-01), Joslyn et al.
patent: 3560829 (1971-02-01), Brennan
patent: 3585406 (1971-06-01), Colter
patent: 3809981 (1974-05-01), Malda
patent: 3883786 (1975-05-01), McNaughton
patent: 3942085 (1976-03-01), Tadakuma et al.
patent: 4146827 (1979-03-01), Krohn
Pritchard K. G.
Sciascia R. S.
Skeer W. Thom
Smith Jr. David
The United States of America as represented by the Secretary of
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