Invention Grant
- Patent Title: Current measurement techniques to compensate for shunt drift
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Application No.: US15472706Application Date: 2017-03-29
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Publication No.: US10359449B2Publication Date: 2019-07-23
- Inventor: Andreas Callanan
- Applicant: Analog Devices Global
- Applicant Address: BM Hamilton
- Assignee: Analog Devices Global
- Current Assignee: Analog Devices Global
- Current Assignee Address: BM Hamilton
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G01R15/14
- IPC: G01R15/14 ; G01R19/25

Abstract:
Described are various current measurement techniques that can compensate for drift in shunt resistance. Determining a resistance of a shunt resistor, e.g., coupled to a battery terminal, can include introducing a known signal in sync with the chop phases of a dual system chop scheme, chopping the known signal out in the main signal path, and explicitly extracting the known signal in a parallel, additional signal deprocessing path.
Public/Granted literature
- US20180284159A1 CURRENT MEASUREMENT TECHNIQUES TO COMPENSATE FOR SHUNT DRIFT Public/Granted day:2018-10-04
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