Control of conducted emissions among heterogenous transceivers in controller area networks
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United States of America
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Mar 18, 2025
Grant Date -
Nov 2, 2023
app pub date -
Apr 27, 2022
filing date -
Apr 27, 2022
priority date (Note) -
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Abstract
A controller area network including one or more first network nodes biased from a first power supply voltage, and a second network node biased from a second, lower, power supply voltage. The second network node includes a transmitter driving a differential voltage onto bus lines to communicate a dominant bus state at a second dominant state common mode voltage, a receiver coupled to the bus lines, sense circuitry to sense a common mode voltage at the bus lines, and control circuitry to control a recessive state common mode voltage in response to the sensed dominant state common mode voltage.
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