Slope control circuit
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United States of America Patent
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Mar 28, 2017
Grant Date -
Mar 2, 2017
app pub date -
Dec 1, 2015
filing date -
Aug 27, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A slope control circuit is connected between a replica circuit and a controller area network bus. The replica circuit generates an upper and a lower feedback signal. The slope control circuit receives and is driven by the feedback signals for controlling a voltage slope of a high-level output and a low-level output. The slope control circuit comprises an upper and a lower driving circuit, individually connected between the replica circuit, the high-level output and the low-level output. The upper driving circuit and the lower driving circuit respectively include at least one charging and discharging circuit. By controlling the charging and discharging circuit, the present invention controls decreasing voltage slope of the high-level output to be symmetric to increasing voltage slope of the low-level output, and delay time of the circuit switching between different operating modes to be equivalent.
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