The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 1986
Filed:
May. 09, 1985
Ronald E Morgan, Portland, OR (US);
Other;
Abstract
A relay control system is disclosed for alternately energizing and deenergizing a non-latching relay in response to successive applications of an AC impulse control signal to a control signal input. An impulse processing circuit converts the AC impulse control signal into a DC pulse. The DC pulse toggles a first flip-flop. The output from the first flip-flop is gated through a second flip-flop in response to a clock signal produced by an AC zero-crossing detector to synchronize the second flip-flop output with zero-crossings of the AC power signal. The output from the second flip-flop operates driving circuitry which energizes and deenergizes the relay coil, thereby toggling the relay. A power up reset circuit deenergizes the relay in response to the initiation of the AC power signal and presets the logic circuitry so that the next impulse of the AC control signal will energize the relay.