Invention Grant
- Patent Title: Method for determining an electric current with a shunt arrangement, with compensation of heating in the shunt arrangement generated by the current
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Application No.: US18173102Application Date: 2023-02-23
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Publication No.: US11754600B1Publication Date: 2023-09-12
- Inventor: Michael Maixner
- Applicant: Bruker BioSpin GmbH
- Applicant Address: DE Ettlingen
- Assignee: BRUKER BIOSPIN GMBH
- Current Assignee: BRUKER BIOSPIN GMBH
- Current Assignee Address: DE Ettlingen
- Agency: LEYDIG, VOIT & MAYER, LTD.
- Priority: DE 2022201996.2 2022.02.25
- Main IPC: G01R19/32
- IPC: G01R19/32 ; G01R19/25 ; G01R15/04 ; G01R1/20
Abstract:
A method for determining an electric current includes sending the electric current to be measured through a shunt arrangement that includes at least three identical resistors. The at least three identical resistors are thermally coupled to a common base plate and are electrically interconnected such that the electric current is at least partially divided such that a first local current through a first resistor is not equal to a second local current through a second resistor. The method also includes measuring, at the shunt arrangement, a first voltage and a second voltage via which the voltage dropping across a first resistor and across a second resistor are directly or indirectly determinable, and determining the electric current via the first voltage and the second voltage. A heating in the shunt arrangement generated by the electric current is at least partially taken into account in the determining the electric current.
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