公开(公告)号：US09584147B2

公开(公告)日：2017-02-28

申请号：US14831731

申请日：2015-08-20

Applicant: ANALOG DEVICES GLOBAL

Inventor： Adam Glibbery ,  John O'Dowd ,  Nicola O'Byrne

IPC: H03M1/12 ,  H03M5/12 ,  H03M1/18 ,  H03M3/00

CPC classification number: H03M1/123 ,  H03M1/0604 ,  H03M1/12 ,  H03M1/188 ,  H03M1/48 ,  H03M3/398 ,  H03M5/12

Abstract: In an isolation system, different analog to digital converters (“ADCs”) are provided on a first side of an isolation barrier. Outputs from the ADCs may be merged into a common data stream and communicated across the isolation barrier by a single isolation device. The ADCs may sample independent signals or may sample a common signal. When the ADCs sample a common signal, the system may monitor the input signal for fault conditions. During no fault operation, results of an analog-to-digital conversion may be communicated across an isolation barrier by an isolation device. During a fault condition, data representing the fault condition may replace the ADC data in communication across the isolation barrier. Fault conditions may be signaled by unique data patterns that can be distinguished from ADC data.

Abstract translation: 在隔离系统中，在隔离屏障的第一侧上提供不同的模数转换器（“ADC”）。 来自ADC的输出可以被合并到公共数据流中，并通过单个隔离装置在隔离屏障上传送。 ADC可以对独立信号进行采样，或者采样公共信号。 当ADC采样公共信号时，系统可以监视输入信号的故障状况。 在没有故障操作期间，模数转换的结果可以通过隔离装置在隔离屏障上传送。 在故障状态期间，表示故障状态的数据可以替代隔离隔离层的通信中的ADC数据。 故障条件可以通过可与ADC数据进行区分的唯一数据模式来发出信号。