- Patent Title: Shutdown of automatic ignition controls upon valve relay failures
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Application No.: US16987763Application Date: 2020-08-07
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Publication No.: US11670939B2Publication Date: 2023-06-06
- Inventor: Venkata Narasimha Rao Chavala , Sudhir Raja Medepalli , Sowmya Paturu
- Applicant: Carrier Corporation
- Applicant Address: US FL Palm Beach Gardens
- Assignee: CARRIER CORPORATION
- Current Assignee: CARRIER CORPORATION
- Current Assignee Address: US FL Palm Beach Gardens
- Agency: Cantor Colburn LLP
- Priority: IN 1911033900 2019.08.22
- Main IPC: H02H7/00
- IPC: H02H7/00 ; H02H7/20 ; F16K31/02 ; H01H47/00 ; H01H47/22

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.
Public/Granted literature
- US20210057905A1 SHUTDOWN OF AUTOMATIC IGNITION CONTROLS UPON VALVE RELAY FAILURES Public/Granted day:2021-02-25
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