- 专利标题: ECONOMIZER FAILURE DETECTION AND BIT METHOD CIRCUITS
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申请号: US16821385申请日: 2020-03-17
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公开(公告)号: US20210296885A1公开(公告)日: 2021-09-23
- 发明人: Jordan K. Vanevenhoven , Thomas P. Joyce , Natalie Filipski
- 申请人: Hamilton Sundstrand Corporation
- 申请人地址: US NC Charlotte
- 专利权人: Hamilton Sundstrand Corporation
- 当前专利权人: Hamilton Sundstrand Corporation
- 当前专利权人地址: US NC Charlotte
- 主分类号: H02H7/22
- IPC分类号: H02H7/22 ; H02H1/00 ; H01H47/22
摘要:
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.
公开/授权文献
- US11791621B2 Economizer failure detection and bit method circuits 公开/授权日:2023-10-17
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