Combined power and control signal transmission system

摘要: At a first location (A), signal combiner (14) combines DC power from source (10) and command communication signals encoder (12). An electrical cable (B) conveys the combined to remote (C). The are read by separator (32) used control AC converter (34) such that converts high frequency which is modulated in accordance with communication. transmitted across an inductive coupler (40) equipment. A unit (50) separates switches (54) functioning of components (56) at location. rectifier (52) provides operate controlled components. pressure transducer (62) generates data uplink coupler. (92) converted decoder (94) appropriate format for man-readable display (96).