Draw a block diagram of a detector for an amplitude modulated signal explaining briefly the function of each of its components.

Answer

(i) AM Detector: The modulated wave is fed into a circuit for demodulation purpose. This circuit is called detector.

(ii) Envelope Detector: A diode followed by a suitable filter circuit is used for the detection of AM waves. The half wave rectification is done by the diode.

After these steps the desired original modulating signal is displayed at the output.