本文提出了一種新型的總線供電/通信電路的設計方法。該方法根據電力電子電路基本拓撲，推導相應的總線供電/通信電路。根據該方法設計了Buck 型總線供電電路，實現了在單一總線上同時傳輸電源和信號。并對其
工作原理，以及在連接傳輸線時的穩態和動態開關特性做了詳細分析，給出了計算方法。最后通過實驗電路驗證了該方法的正確性。
Abstract: This paper presents a new method of designing novel powered bus circuits, which transmit power and data through a single bus. This method is based on power electronics topology and can induce to find out application circuits. The principle of the Buck-type powered-bus circuit is introduced, and under the condition of connected by transmission line, the steady-state characteristics of the circuit as well as dynamic switching characteristics are analyzed in detail. At last, the effectiveness of this method is verified by experimental result.
關鍵字：電力電子電路拓撲，總線供電，傳輸線，反射系數
Keywords：Power Electronics circuit Topology，Powered Bus，transmission line，reflection coefficient