Re: Unregulated power supply

Ah ha! That was easy. (I think, but would not want to bet on it!) I'll put an order into DanM
tomorrow and when the "bit's" get here I'll brave the soldering iron. If you hear of massive
explosion and electrical shortage wiping out the Monterey area, well just know you all contributed
to this. Particularly Tim.

Tim, thank you for all the time and info. It maybe a couple of weeks before I get to the next
level, but I will return (or something like that).

Regards,
Gary Passon

Separate question... would the EMC software run the AHHA hardware? If so, they have
a cool pendant available.

Curious minds...


-----------------------------------------------------------------------------

Tim Goldstein wrote:

> From: "Tim Goldstein" <timg@...>
>
> Welcome to the club of the electronically clueless. I am a card carrying
> member myself. If it wasn't for the help of people like Dan, Mo, Jon, and
> Matt on these things I would be a goner.
>
> The hookup for an unregulated power supply is very easy. Line voltage AC to
> the transformer primary, from the transformer secondary you have your
> stepped down AC that you feed into the rectifier, then you run the DC output
> from the rectifier to your controller with the capacitor hooked in parallel
> with the controller. The cap is an electrolytic so watch the polarity.
>
> [AC in]
> | |
> | |
> [Transformer]
> | |
> | |
> [rectifier]
> | |
> | |
> [Capacitor]
> | |
> | |
> [Stepper Controller]
>
> I know, crappy graphics, but ASCII art is not a strong suit for me. You
> should probably put a fuse in on the AC supply side.
>
> To up the amperage just parallel 2 transformers, but be sure the phasing is
> correct.
>
> You can get the parts from any supplier you want, but the transformers can
> be hard to find. The rectifier and the cap is a pretty common unit. Yes, Dan
> has these parts listed under the servo system, but they are applicable to
> building an unregulated power supply for any task. No, there are no other
> parts needed other than wire, connectors, a switch and a 110 v wall plug.
>
> Hope it helps,
>
> Tim
> [Denver, CO]
>
> > -----Original Message-----
> > From: Gary Passon [mailto:gary@...]
> > Sent: Sunday, August 08, 1999 11:12 AM
> > To: CAD_CAM_EDM_DRO@onelist.com
> > Subject: Re: [CAD_CAM_EDM_DRO]
> >
> >
> > From: Gary Passon <gary@...>
> >
> > Wow.. More helpful info, but now I've got a couple of more
> > questions. If this gets overwelming
> > let me know. First, is there a schematic for assembling a 20 amp
> > supply from DanM's transformers.
> > I went to his site and these parts see to be part of the servo
> > description. Do I need any other parts
> > from DanM site (or better yet is there anything else I can use..
> > short of time, longer on credit cards
> > (bg)). Is there a super overschematic? Electrical stuff kinda
> > baffles me, but I'm a good robot!
> >
> > TIA... to the "chips"
> >
> > Gary Passon
>
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