With the rapid development of semiconductors and telecommunications, the demand for power equipment is not only increasing in quantity but also becoming increasingly high in quality and technical performance. In order to ensure that power equipment works stably, reliably, and with high quality, a reliable power supply is needed.

Based on the changes in input voltage from the power grid, intelligent detection is performed using a microcomputer (MCU+PLD+12-bit high-speed AD) to convert the analog signals of the changing voltage into digital signals.

This is a leap era, with the construction and development of high-speed rail and subways significantly enhancing the quality of China’s road network. This has further promoted the coordinated development of regional economies. The high-speed rail system, an independent intellectual product, has achieved remarkable success, constantly challenging various technological and natural limits.