I have been plauged with this particular problem for a while. I have experimented with some solutions but so far haven’t come up with anything usable.

Here is the problem:

I have a signal that is a 0-12v square wave that varies in frequency from 0-350Hz. I’m not sure of the duty cycle though I don’t think it matters in this case. I need to change this signal by multiplying it by 1-1/3 (1.33333), resulting in a 0-12v square wave with a 0-466.67Hz frequency range.

So say for a 100Hz input I need a 133Hz output.

Is there an easy way to do this? One thing I have tired was using a frequency to voltage converter and then a voltage to frequency converter. The idea was to change the voltage where the two converters connect in order to try and scale it accordingly. The particular ICs I was using didn’t seem to allow the voltage to be low enough to get it to where it would scale on that small of a scale. I was using these ICs from Microchip: ww1.microchip.com/downloads/en/D … 21483d.pdf

Is there a better way to do this? Are there any components available on this site to accomplish this? I have also thought about using a simple microcontroller but haven’t thought too hard about this.

Thanks for the help!