Help Please 12vdc square wave converter

[erodgersraocing]

Hello,

I need to know if it is possiable to 12vdc square wave signal to a 0-5 volt dc signal? If it does someone have scematic for it, or better yet does anyone know if anyone makes such an converter.

Thanks

Eric

 

[Old Nick]

What frequency are you working at?

is it 0-12V to 0-5V you want to convert?

If so an open collector buffer is what your after.

 

[IanP]

In low-power applications to reduce the magnitude of a square wave from 12V to 5V simply use a resistor along with a couple of diodes conncted between signal line and Vcc/GND .. see attached picture ..

Another option, remove D1 and replace D2 with 5.1V(4.7V) Zener Diode ..

Regards,
IanP