Amplitude Shift Keying along with demodulator

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02:23:03

⭐The Modulator :-

Simple ASK modulation implemented using relay. Still, works like IC 4051 MUX/DeMUX

⭐ The Demodulator :-

The output of the ASK modulator is fed to a diode with an RC filter. The Op-amp is used for stabilisation of the output

⭐ Working :-

Here, depending on the data bit (either 1 or 0), the carrier is transmitted not, respectively.

⭐ Legend :-

Red : Filter Output (the voltage across the capacitor)
Yellow : Bit input, 1 or 0
Green : Input signal, either c(t) or -c(t).
Purple : Final Output

published 9 years ago

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