Sequential control circuit capable of sequencing through a numbe

Details Sequential control circuit capable of sequencing through a numbe Sequential control circuit capable of sequencing through a numbe

1976-11-19

1978-08-08

Smith, Alfred E.

Electric lamp and discharge devices: systems

Special application

Vehicle

328 75, 328130, 315201, 315314, B60Q 108, H03K 1728

Patent

active

041059280

ABSTRACT:
A sequential control circuit capable of sequencing through a number of stable states in a predetermined order, starting from a predetermined stable state and sequencing in either of two opposite directions. A contact maker having two transient positions is connected to a timing circuit and to a logic circuit. In response to assumption by the contact maker of one of its transient positions, the timing circuit provides a timer signal delayed with respect to the interval of that transient position. The logic circuit sequences through a number of output conditions corresponding with the stable states in a direction determined by the particular transient position. The logic circuit includes circuitry for placing the circuit in a predetermined one of the output conditions upon initial start up.

REFERENCES:
patent: 3214695 (1965-10-01), Betz
patent: 3314013 (1967-04-01), Dirac et al.
patent: 3558972 (1971-01-01), Hiroshi Arai

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