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.

Date of Patent:
Feb. 06, 2018

Filed:

Jul. 29, 2015
Applicant:

Abl Ip Holding Llc, Conyers, GA (US);

Inventors:

Dalibor Zulim, Conyers, GA (US);

Richard L. Westrick, Jr., Social Circle, GA (US);

Leslie Wayne Mullins, Madison, GA (US);

Assignee:

ABL IP Holding LLC, Atlanta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/22 (2006.01); H01H 47/32 (2006.01);
U.S. Cl.
CPC ...
H01H 47/223 (2013.01); H01H 47/325 (2013.01);
Abstract

In some aspects, a relay control device includes a processor and a timer. The processor is electrically connectable to a relay that controls current flow to a load device. The processor causes the relay to be actuated at a first point in time so that a current flows to the load device. The processor determines an actuation duration for the relay from a measurement of the load current that is obtained with a current sense component. The processor determines a frequency of an input voltage or current from the measured load current. The processor synchronizes the timer with this frequency and identifies a zero-crossing point for a second load current based on the synchronized timer. The processor subsequently causes the relay to be actuated at a time that is offset from the zero-crossing point by the actuation duration.


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