ground isolation circuit by optical couplers

Published:2011/7/4 23:44:00 Author:chopper | Keyword: ground isolation, optical couplers | From:SeekIC

As for some circuits,one point connection between AGND and DGND is very different.Additionally,because of the difference of electric potential of the AGND and DGND in the circuit,the landlines can't be connected.And we adopts optical coupler to separate the AGND and DGND,just as picture.If the signal is transfered in the form of light,then the connection between AGND and DGND is not necessary.



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