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本安电源最重要的组成部分是多重的过压过流保护电路。设计了一种基于浪涌抑制器LT4363的限压限流保护电路,把此保护电路的电路拓扑分别设计成串联和并联2种不同形式,通过LTspice仿真对保护电路串并联2种拓扑形式的性能进行了详细的比较与分析。
The most important part of the intrinsically safe power supply is a multiple overvoltage and overcurrent protection circuit. A voltage limiting and current limiting protection circuit based on the LT4363 surge suppressor is designed. The circuit topologies of the protection circuit are designed to be connected in series and in parallel respectively. Two kinds of topologies are connected in series and in parallel with the protection circuit by LTspice simulation. Conducted a detailed comparison and analysis.