NETWORK FIELDBUS POWER SUPPLY
    2.
    发明申请
    NETWORK FIELDBUS POWER SUPPLY 审中-公开
    网络现场总线电源

    公开(公告)号:US20160211887A1

    公开(公告)日:2016-07-21

    申请号:US14916277

    申请日:2014-09-01

    摘要: The invention provides for a network power-supply voltage adaptor arranged to receive an input voltage (V in) from a network trunk cable and to present an internal voltage derived from the said input voltage (V in), the adaptor being arranged, when at least one of the input voltage (V in) or the said internal voltage is above a reference voltage (Ref V), to regulate the received input voltage (V in) to provide an adaptor output dc power supply voltage (V out) at a substantially constant dc power supply level less than that of the input voltage (V in), and independent of changes in the input voltage level (V in), and the adaptor further comprising at least one communication feed-through loop (55, 56, 66, 68) for the passage of substantially unaltered communications signals through the adaptor.

    摘要翻译: 本发明提供了一种网络电源电压适配器,其布置成从网络中继电缆接收输入电压(V in)并且呈现由所述输入电压(V in)导出的内部电压,所述适配器在处于 输入电压(V in)或所述内部电压中的至少一个高于参考电压(Ref V),以调节接收到的输入电压(V in)以在一个或多个输入电压(V in)提供适配器输出直流电源电压(V out) 基本恒定的直流电源电平小于输入电压(V in)的直流电源电平,并且独立于输入电压电平(V in)的变化,并且适配器进一步包括至少一个通信馈通回路(55,56,64) 用于通过适配器通过基本上未改变的通信信号。