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:
Jul. 25, 2023
Filed:
Jul. 29, 2021
Eaton Intelligent Power Limited, Dublin, IE;
Saivaraprasad Murahari, Peachtree City, GA (US);
Nilesh Ankush Kadam, Pune, IN;
EATON INTELLIGENT POWER LIMITED, Dublin, IE;
Abstract
An energy monitoring device includes a power supply circuit electrically coupled to a power source via a hot conductor and a load via a load conductor; a relay circuit including a relay and a relay driver circuit, where the relay includes a plurality of coils and the relay contact electrically coupled to the hot conductor and the load conductor; a sensing circuit including a hot voltage sensor and a load voltage sensor; and a controller electrically coupled to the power supply circuit, the relay driver circuit, and the sensing circuit, and structured to receive a hot voltage from the hot voltage sensor and a load voltage from the load voltage sensor, and determine a load current based at least in part on a relay contact resistance of the relay contact and a delta between the hot voltage and the load voltage.