Function of isolator 1、Protect circuit components One of the main functions of an isolator is to protect the components in the circuit from damage caused by high voltage and high current. In circuits, isolators can effectively cut off or reduce voltage and current, thereby avoiding excessive current flowing through various components in the circuit and improving the reliability and stability of the circuit. 2、Enhance signal quality Isolators can also improve the signal quality in circuits. In the process of analog signal transmission, isolators can effectively reduce noise interference and improve signal purity. Meanwhile, in digital circuits, isolators can also ensure stable signal transmission and avoid errors caused by noise interference.