Voice Modulation Optical Transmitter Circuit

Published:2011/5/27 7:57:00 Author:Robert | Keyword: Voice, Modulation, Optical, Transmitter | From:SeekIC

This circuit uses an operational amplifier and a transistor. According to the amplitudeof sound pickup device's output signal, it would do the amplitude modulation to the LED after its amplification. This circuit can be used in normal audio devices by optical receiver devices.



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