CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Power supply voltage question???

Posted by Les Newell
on 2004-09-20 13:18:11 UTC
Hi Russ,

Is this 44VDC with no load? Most power supplies will drop quite a bit
with a small load. Putting a resistor (say 100 ohms, 20W) or a light
bulb across it may well drop the voltage below 40V. On my bridgeport the
power supply will rise to about 85V on no load but it sits at about 75V
with 3 Gecko drives attached to it.

Les

Russ Waters wrote:
> I have built a dc power supply, and the dc output voltage ended up to be 44 vdc. Problem is the stepper drivers I am using have a 40 vdc max. How would I limit the voltage without making it a regulated power supply?
>
> Thanks,
> Russ
>
>
> ---------------------------------
> Do you Yahoo!?
> Express yourself with Y! Messenger! Free. Download now.
>
> [Non-text portions of this message have been removed]
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... davemucha@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

Discussion Thread

Russ Waters 2004-09-20 10:23:38 UTC Power supply voltage question??? Fred Smith 2004-09-20 10:36:28 UTC Re: Power supply voltage question??? caudlet 2004-09-20 11:36:29 UTC Re: Power supply voltage question??? Russ Waters 2004-09-20 12:24:55 UTC Re: [CAD_CAM_EDM_DRO] Re: Power supply voltage question...more info.. Les Newell 2004-09-20 13:18:11 UTC Re: [CAD_CAM_EDM_DRO] Power supply voltage question??? caudlet 2004-09-20 14:59:44 UTC Re: Power supply voltage question...more info.. Russ Waters 2004-09-21 04:04:06 UTC Re: [CAD_CAM_EDM_DRO] Re: Power supply voltage question..Even more info.. Jon Elson 2004-09-21 10:03:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Power supply voltage question..Even more info..