The paper conducts research on the design of anti-interference chip of serial communication transceiver.Aiming at the problem of unstable communication in the high interference environment for the existing CAN/RS485 transceiver chip,it proposes an anti-interference chip design scheme based on adaptive filtering technology.The scheme adopts a minimalist design principle,by making minor modifications to the existing chip architecture,leads out the two ends of the voltage divider network inside the chip,and connects an external capacitor to form a first-order RC low-pass filter,which can effectively suppress common-mode and differential-mode interference.Simulation and test results show that the designed chip can significantly improve anti-interference performance and greatly enhance the reliability and stability of serial bus communication.The scheme is fully compatible with existing interface standards and usage habits,and has broad application prospects in fields such as electric power,industry automation,new energy,and automotive electronics.
serial communicationanti-interferenceadaptive filteringchip designCAN/RS485
维普
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