Current sensing circuit and current measuring system for measuring a current in an electrical line
US11422161B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jan 18, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L53/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current sensing circuit is provided for measuring a current in an electrical line connecting an electrical supply to a load. The current sensing circuit includes a magnetic circuit having: a magnetic core, a reference winding wound around the magnetic core, and a conductor passing through center of the magnetic core. The conductor is being connected to the electrical line. The current sensing circuit further includes a detection circuit connected to the reference winding of the magnetic circuit. The detection circuit is configured to detect a change in condition of the magnetic core and generate a detection signal in response to determination of the change. Furthermore, the current sensing circuit includes a controller coupled to the detection circuit for receiving the detection signal. The controller measures the current in the electrical line in response to the detection signal from the detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.