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    Photoelectric coupler test circuit ----- Optocoupler Tester

     

    Optocoupler test circuit, Optocoupler Tester Keywords: photocoupleer tester production The photocoupler is widely used, and the author is designed with a convenient test photocoupler circuit in accordance with the characteristics of photocoupler. This circuit is simple, accurate and easy to use. Circuit principle When the power is turned on, the LED does not illuminate. Press S2, the LED will illuminate. The luminescence intensity of the RP and the LED changes, indicating that the photocoupler is good. The printed circuit board is shown below. The battery uses a 3V button battery. The battery is mounted on the copper foil surface of the printed board, and the copper sheet is buckled and welded. This printing plate is suitable for TLP621, TLP521, TLP321, TLP124, TLP121, PC817, PC713, PC617, ON3111, ON3131, and TLP332, TLP532, TLP632, TLP634, TLP732, CNX82A, FX0012CE, photocoupler in use 4 foots. Short aircraft of the 1, 2 feet of S3; use the photocoupler using 6 foots, short-circuiting the 2, 3 feet of S3.

     

     

     

     

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