US Patent 11774469 Auto ranging ammeter with accurate measurement during range changes
Patent 11774469 was granted and assigned to Jetperch Llc on October, 2023 by the United States Patent and Trademark Office.
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US Patent 11774469 Auto ranging ammeter with accurate measurement during range changes
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Patent abstract
An auto ranging ammeter that allows improved measurement of rapidly changing, high-dynamic range electrical currents. The ammeter computes current during range switches by using digital signal processing to combine voltage measured over both a variable shunt resistor and a fixed shunt resistor. The ammeter uses fast comparators and digital processing to select the appropriate shunt resistor. The auto ranging ammeter includes a voltmeter which enables the device to output current, voltage, power, charge, and energy consumed by a target device under test.
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Patent Applicant
Current Assignee
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Patent Number
Patent Inventor Names
Matthew Girard Liberty
Date of Patent
October 3, 2023
Patent Application Number
17662168
Date Filed
May 5, 2022
Patent Citations
Patent Primary Examiner
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