Re: Unregulated power supply

> From: Gary Passon <gary@...>
> Separate question... would the EMC software run the AHHA hardware? If so,

they have

> a cool pendant available.

I called them about this a year or so ago. They explained that their actual
"product" is the software and that they use the card that plugs into the PC's
backplane as a sort of "dongle" to prevent people from pirating the program.
As you might guess, they were unwilling to disclose the type of technical
information needed to communicate with their board, since the same data could
be used to construct "plug compatible" boards! They were somewhat taken aback
that I thought more of their hardware than their software.

If you are referring instead to AHHA's stepper driver products then the
answer is yes since they accept the standard step and direction signals
generated by all of the control programs discussed on this list (with maybe
an exception for MaxNC, I thought they did phase control...). AHHA does make
some high power, pre-assembled stepper drivers, but to beat Dan's 5A board
would cost more than $2000 as of the last time I priced their stuff.

Matt