Which EMC (electromagnetic compatibility) components are helpful for the design and modification of infusion pumps?

EMC rectification of infusion pumps focuses on motors and sensors. For each phase output of the stepper motor driver, an RC absorption network (e.g., 100Ω + 100pF) can be connected in parallel to ground to slow down voltage changes and reduce radiation. Large-capacity electrolytic capacitors and small-capacity ceramic capacitors should be placed near the power supply pins of the driver chip for decoupling. Bubble detection typically uses ultrasonic or photoelectric principles; the signal lines of its transmitting and receiving circuits should be short and shielded, and common-mode inductors may be used to filter out common-mode noise. The equipment casing should be properly grounded, and ESD protection devices (ESD5V0D8B) should be added to the buttons and encoder signal lines of the operation panel.