DSB-SC Demodulation using Ring modulator: Video tutorial Orcad Capture

This video tutorial shows the DSB-SC demodulation using the Ring Modulator to recover the original message signal in Orcad Capture. The demodulation is followed by a sinple RC filter tuned to twice the carrier frequency. The message signal frequency is 1KHz and the carrier signal frequency is 10KHz. The Ring Modulator (also called Double Balanced Modulator) is made of ring of D1N4148 diodes. The DSB-SC, original message signal and the recovered message signal waveform and their FFT spectrum is also shown. Circuit Board Design can be implemented further from the schematic diagram.

Video: DSB-SC Demodulation using Ring modulator

Below figure shows some picture of schematic diagram and simulation result:

Fig: Schematics of DSB-SC modulation/ demodulation using Ring Modulator

Fig: All waveform in one graph

Fig: DSB-SC Signal Waveform

Fig: DSB-SC Signal Spectrum

Fig: Original message spectrum

Fig: Recovered Message Waveform

Fig: Recovered Message Spectrum