一种采用同步降压拓扑的本质安全电源的研制

An Intrinsically Safe Power Supply with Synchronous Buck Topology

在分析传统开关型本质安全电源各种损耗的基础上,得出采用同步Buck拓扑可以显著提高电源效率,减少发热,提高本质安全特性。首次将同步Buck拓扑应用在本质安全电源中,采用本质安全设计方法对电路参数进行设计。实验证明该电源具有效率高、体积小、可靠性高等优点。

Based on the analysis about losses of the conventional switching mode intrinsically safe power supply,a syn-chronous Buck topology is obtained which is more efficient,cooler and safer than conventional Buck converter in intrinsically safe power supply.The parameters of this synchronous Buck topology are chosen by the rules in intrinsically safe circuits and is adopted in intrinsically safe power supply for the first time.The experimental results show that the power supply has merits of high efficiency,small volume and high reliability.