Re: [CAD_CAM_EDM_DRO] How much current for Camtronics boards, 5V logic side?

At 01:24 AM 1/22/02 -0000, kaygoal wrote:

>Hi
>
>I am going to buy a "wall wart" rated at 5 volts to handle the logic
>portion of Dan Mauch's 5 amp stepper driver boards. Will a 300mA
>supply power the logic portion of 3 boards? (ie, 100mA each?) or do
>you need more beef than that?
>
>Again, this is not the motor supply, just the logic portion of his
>boards.
>
>Thanks, Tom.

Just because it says 5V doens't mean it is! Usually, they
run high, and that could be bad for driver board.

I suggest to go here:

http://www.national.com/store/view_item/index.html?nsid=LM2675-5.0EVAL

and buy this:

"The LM2675-5.0 Evaluation board is fully assembled and tested
surface-mount regulator that provides a 5V± 1.5% output at up to 1A, from
an input of 8V to 40V. The overall efficiency is typically as high as 90%.
The operating temperature range is 0°C to + 85°C. "

It's $8. I think that includes shipping, as well.
Assuming you are running your motors from 8-40V, you can use that to get
the 5V.


- Dom

Microstepping for the People!
http://www.microstepping.com
(not much there yet)