OpenBuilds X32 BlackBox: 0 - 3.3 V PWM to 0 - 5 V PWM

To whom it may concern:

I am using the 0 - 3.3 V PWM output to signal an external speed controller for a brushless motor for my spindle.

The controller can take up to 5 V which means the potential speed the spindle can achieve is reduced by the ratio of 3.3/5 = 66 % of its maximum speed.

Has anyone created a voltage divider to step up the 0 - 3.3 V to 0 - 5 V, if possible?

By the way fantastic controller and software.

Any suggestions or recommendations would be appreciated.

Regards,

Gary

 

I just realised should I be looking to rather step-down the 0 - 10V analogue signal to 0 - 5 V with a voltage divider instead of trying to step up as I suggested above.

Doc for 0 - 10 V

docs:blackbox-x32:connect-vfd [OpenBuilds Documentation]

 

Thank you Peter,

Good point no this controller is from Italy. It is already working successfully with the X32 blackbox but as I said I can not reach full speed as I am only able to go up to 3.3 V and the motor controller can accept up to 5 V. Hence, why I am now thinking that I could use the 0 -10 V spindle anlalog signal and step it down some how.

Are the suggestions or recommendations in this regard.

 

Thank you.

 

Thank you for the help and the great documentation in regards to the X32. The controller and software are more impressive the more I use it.