Designing of a voltage monitor for measuring the voltage of sensitive component on the PCB in EM environment

It is important to monitor the voltage and other parameters of the electronic devices on the PCB for ensuring the better performance and to understand the robustness of the devices in the EM environment This paper presents a novel design of a voltage monitor circuit to monitor the voltage signal of the sensitive components on the PCB in disturbed environment Through the actual test, and analysis the voltage curve can be found, which can help to understand the interference voltage noise on the component of the PCB.