- Patent Title: Sensing properties of switching devices using back EMF measurements
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Application No.: US16902899Application Date: 2020-06-16
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Publication No.: US11651918B2Publication Date: 2023-05-16
- Inventor: Andrew E. Carlson , Kyle B. Adkins
- Applicant: Rockwell Automation Technologies, Inc.
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Fletcher Yoder, P.C.
- Main IPC: H01H47/00
- IPC: H01H47/00

Abstract:
A system may include a switching device. The switching device may include an armature that may move between a first position that electrically couples the armature to a first contact and a second position that electrically couples the armature to a second contact. The switching device may also include a coil that may receive a voltage that magnetizes a core, thereby causing the armature to move from the first position to the second position. The system may also include a control system that may monitor a voltage waveform associated with the coil during an open operation of the switching device.
Public/Granted literature
- US20210391132A1 SENSING PROPERTIES OF SWITCHING DEVICES USING BACK EMF MEASUREMENTS Public/Granted day:2021-12-16
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