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公开(公告)号：US09608606B2
公开(公告)日：2017-03-28
申请号：US14955613
申请日：2015-12-01
CPC分类号： H03K5/01 , H03K3/353 , H03K19/00361
摘要： 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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公开(公告)号：US09685936B2
公开(公告)日：2017-06-20
申请号：US14955571
申请日：2015-12-01
IPC分类号： H03L5/00 , H03K5/003 , G06F13/40 , H03K19/0185
CPC分类号： H03K5/003 , G06F13/4072 , H03K19/018521
摘要： A self-feedback control circuit is connected to a controller area network bus for controlling a high-level output and a low-level output, comprising a controller area network driving circuit and a replica circuit. The replica circuit is connected in parallel with the controller area network driving circuit and comprises an upper feedback path and a lower feedback path. The upper feedback path and the lower feedback path are connected jointly to a common mode, and the replica circuit provides a feedback signal from the common mode such that the feedback signal is able to be respectively transmitted to two individual transistors of the controller area network driving circuit through the upper feedback path and through the lower feedback path so as to control DC level stability of the high-level output and the low-level output.
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