US Patent 11791621 Economizer failure detection and bit method circuits
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US Patent 11791621 Economizer failure detection and bit method circuits
Article
Patent abstract
A method includes detecting a failure in a contactor economizer that is configured to provide a first current to a coil of a contactor to close the contactor, and to provide a second current lower than the first current to the coil after the contactor is closed to hold the contactor closed. The method includes at least one of: driving contactor actuation based on economizer failure status; and/or signaling failure of the economizer through built in test (BIT) indication.
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Patent Number
Patent Inventor Names
Jordan K. Vanevenhoven
Natalie Filipski
Thomas P. Joyce
Date of Patent
October 17, 2023
Patent Application Number
16821385
Date Filed
March 17, 2020
Patent Citations
Patent Primary Examiner
CPC Code
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