Frequency multiplier

211

01:40:10

This circuit has a 1khz triangle wave in input and a 2khz output triangle wave in output. This is called frequency multiplier and it works by making the input signal positive and negative and then rectifying it.
-nikisalli 

published 10 years ago

jpoulin0901

10 years ago

Cool. It's so perfectly obvious i cant believe i didn't think of it myself. Ive been trying to develop multipliers based around the 555, working with rectangular waves and monostable mvb's. The triange wave is the only waveform that maintains it's shape and harmonic content following a full bridge. I should have noticed but didn't well done.

thebugger

10 years ago

Just a bridge rectifier. Good :)

selman

10 years ago

Look at this one, http://everycircuit.com/circuit/4927159373135872

hurz

10 years ago

Hey guys.... One of the opamp's is wrong!

nikisalli

10 years ago

Really? What opamp?

hurz

10 years ago

Thats your job to find out.

hurz

10 years ago

And the opamps are btw not really needed http://everycircuit.com/circuit/6738124726599680

nikisalli

10 years ago

I've used the opamps to have a triangle in input and have a triangle in output with the same peak voltage

hurz

10 years ago

And why this completely different simulation circuit?

hurz

10 years ago

Its the lower left one opamp were you need to swap +- inputs

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