Ring Modulation

Thread Starter


Joined Dec 18, 2005
Hi there,

I have been dabbling with a ring modulator using the two transformer and 4 diodes forming a ring method. I think the important thing here is that it's output produces the sum and the difference of the two frequecies applied to the input. If I use a 1KHz signal for the carrier and 100Hz signal for the modulation and then view the output with an oscilloscope, I see that the modulation frequency appears to have doubled ie the periodic time of the waveform has halfed. Is what I am seeing the result of the sum and the difference of the two frequencies ie 900Hz and 1100 which equals 200Hz?

any views on this would be gratefully appreciated.

best wishes,