The best electric circuit of converter is the tandem switch dropping-voltage circuit. 而变换器的最佳电路结构是串联开关降压电路。
The author especially analyzes the problems of making use of the current network resources, optimization of network structure and improvement of the Tandem Switch. 对充分利用现有网络资源,优化网络结构,加强汇接局层面的建设的问题进行了重点分析。