Can Communication Signal Generation
- Termination circuits (resistors) are connected across the CAN communication system. When transmitting a CAN communication signal, each control unit passes a current to the CAN-H line and the current returns to the CAN-L line.
- The current flows separately into the termination circuits connected across the CAN communication system and the termination circuits drop voltage to generate a potential difference between the CAN-H line and the CAN-L line.
NOTE:
A signal with no current passage is called "Recessive" and one with current passage is called "Dominant".
- The system produces digital signals for signal communications, by using the potential difference.