一种用于单火线供电的RCC开关电源电路

An RCC switching mode power supply circuit for single live wire application

近年来智能家居系统取得了快速发展,单火线电源是其重要组成部分。而传统离线式电源难以满足其工作环境,亟需改进。针对单火线电源系统极低工作电流的特点,改进了传统的RCC离线式开关电源,显著降低了工作电流,经电路仿真、实物测试,实测工作电流仅0.8 mA,较目前通行的单火线电源降低50%以上。此外,电路结构简单、性能稳定、成本低廉,具有较高的实用性。

In recent years,smart home systems have achieved rapid development.Single live wire power supply system is an important part of it.However,traditional offline power supply circuit is diffcult to adapt to its working environment.New structures are in dire need of development.Aiming at the characteristics of extremely low working current of single live wire power supply system,the traditional structure of RCC switching mode circuit is modified to reduce its working current.The working current is significantly reduced.After circuit simulation,a actual product is produced and the measured working current is only 0.8 mA in test,which is more than 50%lower than that in traditional structure.It is proved to have high practical value with simple structure,stable performance,and low cost.