Application and Support


With the continuous development of electronic technology, the functions of various instruments and meters gradually realize intelligent, such as intelligent digital display counter, is the use of single-chip counting, display, control processing. Therefore, the performance requirements for the power supply are also higher. Switching power supply has many advantages over low-frequency transformers. The switching power supply can be directly installed on the control motherboard, with high efficiency, high DC voltage accuracy, small size, reliable performance, eliminating installation trouble, and making the product lighter. Power supply scheme: 220V commercial power enters the instrument, converts it into DC DC12V through the AC-DC power supply module to supply power to the control relay and external sensor, and then stabilizes the voltage into DC5V through 78M05 to supply power to the single chip microcomputer and the display screen.


Advisory Hotline


Contact: Liu Gong


Address: Building D, Micro Think Tank Industrial Park, No.8 Xianke 1st Road, Xiutang Village, Huadong Town, Huadu District, Guangzhou City, Guangdong Province

WeChat Public Number

WeChat Public Number

Mobile phone mall

Mobile phone mall

©2023 Guangzhou Sanmin Electronic Technology Co., Ltd. All rights reserved