Unrated Input Power Automatic Display

摘要

This research is about the automatic display device of input power supply, especially the detection of AC power supply input from the video tape recorder. When the abnormal voltage is provided, the user is informed of the automatic display device of the irregular input power supply by lighting the lamp.;In this study, the automatic display device of irregular input power supply is used,Hi.AC input voltage of medium voltage,The power supply unit which is converted into DC voltage by rectifying.Hi.Convert the middle DC voltage to the A / D conversion unit of wechat,Through the voltage data output by the above a / D conversion unit,Judge the middle circuit voltage,If the router voltage is determined, the wechat sum of the output signal will be sent to the mark,It is composed of the display unit which transmits the output data of the above-mentioned mycom to the LED light. It detects the AC input voltage provided to the video tape recorder. When the abnormal voltage is provided, the LED light of the automatic light on indication indication indication indication indication indication indication indication indication indication indication indication indication indication indication indication is automatically lit.