消防水泵直流供电系统设计

Design of DC Power Supply System Based on Fire Pump

反激式开关电源具有体积小、功率大、电路设计简单等特点。设计开关电源采用OB2268C电源芯片,将220V的交流电通过变压器和MOS管把电压转换成两个直流稳压电源,用于直流继电器和单片机的工作。该电源系统实现了稳定电压输出和电路运行高效节能。

The flyback switching power supply is characterized with small size,large power,and simple circuit design and so on. The switching power supply designed in this article adopts the OB2268 C power chip,and converts 220 v AC power into two DC voltage stabilized power supply through transformer and MOS transistor,which is used for DC relay and single chip microcomputer. This power supply system achieves the stable voltage output and the energy efficient circuit operation,which is the best option for the power supply of fire protection system.