Re: Frequency multiplier circuit ?

"Electron Gun" <eemmoo@xxxxxxxxxxx> wrote in message
news:bKvlf.28982$D13.15552@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> I have a ttl signal that is a tach signal that goes from 0 to 2 kHz.
> I need to multiple the tach signal frequency by two ( X2 ) from 0 to max
> speed which is 2kHz.
> Is there a simple way to do this? I think I remember seeing a XOR gate
> configuration that accomplished this?

Feed one side of the XOR gate with your signal and another signal with the
signal delayed somewhat (feed it through a few gates, use an R-C delay,
etc.) -- you've now built an edge-detector, which effectively doubles the
frequency.


.

Quantcast