Design an LED driver that allows a single LED to convert electronic signals (music) from an...
Design an LED driver that allows a single LED to convert electronic signals (music) from an MP3 player into a light level that can be detected by a photo-receiver that, in turn, drives an audio amplifier. The receiver is perfectly linear. It will convert into a proportionate voltage whatever light level is directed its way. The receiver is AC coupled to the audio amplifier so a DC light level will have no effect upon the photo-receiver.