Writing/Adding Ac Signal

[daniii]

I want to write ac signal with lets say f=120kHz with amplitude 20Vpp on Power line which has f=50/60Hz with amplitude of 230/220V. I want to know how to design a circuit for it. It would look like the image posted below. And Also would like to know the calculations! THanks in Advance!



Regards,
Abdul Rahman Meer

 

[erikl]

You should tell in which language/syntax you need the description.

Simulation languages like (H)SPICE, SPECTRE, ..., analog description language like Verilog-A or aVHDL, or other mathematical description language like MATLAB, or pure mathematical description? Or anything else?

 

[1/2dime]

Carrier current transmission. Check out the National LM1893 and be aware of the safety issues dealing with the mains! E

 

[daniii]

Well in proteus! I need a design file if i can get or any explanation that how i can be done!

 

[erikl]

... or any explanation that how it can be done!

I don't know the Proteus software nor its syntax, sorry.

You need 2 (or 3) ac (sinus) voltage sources in series: The first one with 230*√2 V / 50 or 60Hz , a second one with 20V / 120kHz with start=0 and stop=as_you_like (or an exponentially decaying sinus, cf. the image below). If this ac voltage source doesn't have a repeating feature, you'll need a third one - same as the second one - but with a delay of 10ms (in case of 50Hz line frequency). Then try and repeat a 20ms cycle.

 

[daniii]

Well if your going to make a circuit and generating 120khz Signal! are you just going to give it in a powerline?? Absolutely no! For that you need to make a circuit and i am asking how to do it! Its basically powerline communication!!