Current Measurement Circuit and Method
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United States of America
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Issued Date -
Dec 26, 2024
app pub date -
Jun 7, 2024
filing date -
Jun 7, 2024
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Abstract
A current measurement circuit includes an operational amplifier, an input connector, a gain control sub-circuit, and a measurement output. The operational amplifier includes two inputs and an output. The input connector is for connecting the two inputs across a current-sense resistor. The gain control sub-circuit is connected to the output and includes a switch operable to select a current path from a plurality of current paths. The measurement output is connected to the gain control sub-circuit for outputting a signal indicating a measured current based on a selected current path. The gain control sub-circuit is configured to select a gain across the operational amplifier based on a ratio between the input connector and the selected current path.
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