Invention Grant
- Patent Title: Control area network (CAN) transceivers with automatic polarity detection
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Application No.: US15854583Application Date: 2017-12-26
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Publication No.: US10560282B2Publication Date: 2020-02-11
- Inventor: Abhijeeth Aarey Premanath , Richard Edwin Hubbard , Maxwell Guy Robertson , Lokesh Kumar Gupta , Mark Edward Wentroble , Roland Sperlich , Dejan Radic
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Charles A. Brill; Frank D. Cimino
- Main IPC: H04L12/40
- IPC: H04L12/40 ; H04L12/12

Abstract:
Two CAN bus transceivers utilized in a single integrated circuit package with the CAN bus connections between the two transceivers being inverted. Thus, one transceiver is connected to the CAN bus high and low lines while the other transceiver is connected to the CAN bus low and high lines. Both transceivers power up in a standby condition and each transceiver is monitoring for wake up signals on the CAN bus. The transceiver that is correctly connected to the CAN bus detects wake up signals. When the wake up signals are detected at that transceiver, that transceiver is brought to full operating state and the other transceiver is placed in a full standby condition. Additional input resistance is provided with each transceiver to maintain the proper input resistance for the integrated circuit.
Public/Granted literature
- US20180351765A1 CONTROL AREA NETWORK (CAN) TRANSCEIVERS WITH AUTOMATIC POLARITY DETECTION Public/Granted day:2018-12-06
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