基于 Mbus原理的电源通讯总线原理设计 杨泽清 摘 要:文章首先介绍了 M-BUS 仪表总线特点和收发机制,然后给出了不同于 TI公司专门芯片技 术的硬件设计原理电路及其分析。文中并对该设计的实际应用作了简要说明。 关键词: M-BUS 总线;主控器;节点;电平信号;电流信号 Hardware Design on Principle of Instrument Bus M-BUS Abstract :This paper firstly presents the M-BUS including its character and tranceiver principle .Then gives a detailed analyse circuit , which is different from that TI ’ s chip TSS721 .