SPICE simulation of an AM modulator implemented with a JFET.
– March 6, 2014
thank you very much for sharing this but please could you be more specific about what you are seeing at the output waveform1
– March 7, 2014
Hi,this mixer allows you to have a symmetric replica of the input signal (100khz) , respect to the frequency local oscillator 555khz, then at 455khz and at 655khz, as you can see from the FFT plot. The first picture shows the transient analysis with the modulated signal and the mixed output signal distorted by extra frequencies generated during the mixing.
– March 9, 2014
thank you very much i understood the concept
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