Invention Grant
- Patent Title: Current measurement circuit
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Application No.: US17033505Application Date: 2020-09-25
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Publication No.: US11428717B2Publication Date: 2022-08-30
- Inventor: Michele De Fazio , Shawn Searles
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Erik A. Heter; Dean M. Munyon
- Main IPC: G01R19/15
- IPC: G01R19/15 ; G01R19/257

Abstract:
A current measurement circuit is disclosed. The current measurement circuit includes first and second circuit branches coupled to a circuit node through which current is to be measured. During a first period, the first circuit branch converts the current into a first voltage. During a second period, the second circuit branch converter the current into a second voltage. An analog-to-digital converter is configured to convert the first and second voltages into digital values indicative of the measured current. A control circuit is configured to alternately select one of the first and second branches during the generation of the digital values.
Public/Granted literature
- US20220099712A1 Current Measurement Circuit Public/Granted day:2022-03-31
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