MicroSquirt VR Circuit... explanation?

Rodney Sparks · Post by **Rodney Sparks** » Sat Jul 08, 2006 3:25 pm

Bruce-

If you have time, can you please give an explanation of the MicroSquirt VR input circuit? I'd like to know:
1) What is the theory of operation?
2) How does it handle a noisy signal (i.e. what are its zero crossing and trigger reset thresholds?)
3) Does it work as well as the v3 board's circuit with regard to noise, or is it simply a compromise to save space?

Please forgive me if this information is already out there; I couldn't find it...

Thanks!

-Rodney

Bernard Fife · Post by **Bernard Fife** » Sat Jul 08, 2006 4:07 pm

Rodney,

The MicroSquirt VR circuit is essentially the same as the GPIO VR circuit. you can read about that here: http://www.megasquirt.info/gpio/vr.htm. In the testing I have done, it has worked very well.

Lance.

Rodney Sparks · Post by **Rodney Sparks** » Sun Jul 09, 2006 6:37 am

Thanks, Lance!

-Rodney