Four gratings circuits using integrated circuit

Published:2012/9/27 21:40:00 Author:Ecco | Keyword: Four , gratings , integrated circuit | From:SeekIC

The four circuits use light - emitting diode LD261 as light emitter, and its optimum operating current is about 10mA, and it is adjusted by the resistor R1, the R1 values for the different supply voltages are shown in following table. The distance between the light emitting diode and receiver is 10mm, it uses a suitable optical device ( such as lens ) to increase the distance. When BPX81 is irradiated, each circuit is in turn-on state when output terminal Q is low and off-state when output terminal Q is high.



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