A.C. connection circuit for display or indicator

Details A.C. connection circuit for display or indicator A.C. connection circuit for display or indicator

1982-12-06

1984-07-31

Mancene, Gene

Card, picture, or sign exhibiting

Changing exhibitor

With electric circuit control

34081524, 340764, 40449, G09F 2104

Patent

active

044621779

ABSTRACT:
An electromagnetic display element is controlled by one or more high remanence cores which have control windings. A circuit is connectable to an A.C. outlet and provides to the windings a D.C. pulse in one sense (to switch the display element in one direction) when the circuit is connected to the A.C. outlet. The circuit included a capacitor charged during such connection. The circuit is designed so that, on its disconnection from the A.C. outlet, the capacitor discharges through the winding in the opposite sense and switches the display element in the opposite direction.

REFERENCES:
patent: 3745563 (1973-07-01), Jones et al.
patent: 3949392 (1976-04-01), Caritato
patent: 3975728 (1976-08-01), Winrow
patent: 4006476 (1977-02-01), Romney
patent: 4064503 (1977-12-01), Saylor et al.
patent: 4264906 (1981-04-01), Wakatake
patent: 4394652 (1983-07-01), Rabette

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