The isolation detection circuit

Published:2011/6/19 8:04:00 Author:Seven | Keyword: isolation detection | From:SeekIC

The simulation signal detection circuit is to convert the strong signal into the weak digital signals that dsp can read, and it must be sure of the isolation of the strong and weak electricity. The writer chooses the HP hcp17800a photoelectric coupler, whose linearity is 0.004%, and the impedance is 15kv/lμs when the common voltage is 1000v, the gain drift is 0.000 25v/℃, the band width is 100KHz. The concrete isolation detection circuit is shown in the figure.



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