一种互动式逆变器用市电切换电路设计

针对中低端互动式逆变器,市场更加注重成本和可靠性。从互动式逆变器的功能需求出发,设计一种简单实用且安全可靠的市电侦测电路,无需占用MCU或单片机资源,同时利用电容倍压原理加快继电器吸合,缩短切换时间。该电路有利于降低产品成本,增加可靠性及稳定性,改善产品性能(缩短切换时间)。

Design of a Switching Circuit with Mains Power for Interactive Inverter

In view of the low-end interactive inverter,the market pays more attention to cost and reliability. Based on the functional requirements of the interactive inverter,a simple,practical,safe and reliable power detection circuit is designed,which does not need to occupy MCU or MCU resources. At the same time,the principle of capacitance voltage multiplier is used to speed up the closing of the relay and shorten the switching time. The circuit can reduce the cost of the product,increase the reliability and stability,and improve the performance of the product(shorten the switching time).