Stereo transmitter AM plus PWM

421

04:57:58

Stereo transmitter using AM for the R channel and PWM for the L channel.

What I've done is, first I generated a PWM of the source at the top of the schematic, then i used the PWM signal as a Carrier signal for the amplitude modulation...

And for the demodulation, the upper OpAmp extracts the PWM signal and feeds it to a simple (too simple) lowpass filter  which demodulates the signal, same for the AM demodulation...

published 10 years ago

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