Loop current detector

Details Loop current detector Loop current detector

G - Physics

01

R

G01R 19/15 (2006.01) H04M 1/00 (2006.01) H04M 3/22 (2006.01)

Patent

CA 2146596

A current detector for connection in series with a lead carrying current to be detected, comprised of a first branch comprising a plurality of series connected diodes having an anode end and a cathode end for connection to the lead, a first optocoupler light emitting diode connected in series with a resistor, connected in parallel with the first branch, the optocoupler diode being connected in the same polarity direction as the diodes in the first branch, and a first further diode connected in parallel with the first branch, in opposite polarity direction as the diodes in the first branch.

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