The operation of a typical AM audio frequency signal is illustrated in the Figure 1.0 where vin is the modulated signal that is shown Figure 1.1.
A typical amplitude modulated signal that is fed into the detector circuit:
The diode removes the lower envelope and the upper envelope is illustrated below:
The capacitor C2 and resistor R2 form a high-pass filter that removes the carrier frequency, and the output vout is the audio signal as illustrated in Figure 1.2:
Related articles:
- Applications of Filters in Telecommunication Systems
- Modulation in Communication Systems
- Demodulation in Telecommunication Systems
- Tuned Amplifier Applications
Please follow us & share:
