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:
Jun. 06, 2023
Filed:
Aug. 07, 2020
Carrier Corporation, Palm Beach Gardens, FL (US);
Venkata Narasimha Rao Chavala, Telangana, IN;
Sudhir Raja Medepalli, Telangana, IN;
Sowmya Paturu, Telangana, IN;
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
A circuit and a method for shutdown of automatic ignition controls upon valve relay failures. One or more embodiments describe a method including controlling a power supply to a valve by a valve drive circuit, the valve drive circuit comprising a first relay coil and a second relay coil. The method also includes controlling the valve drive circuit by checking the first relay coil and the second relay coil and issue a drive signal to the first relay coil and the second relay coil. The method further includes protecting from accidental supply of power by a protection switch based on the drive signal issued by the controller.