Re: [CAD_CAM_EDM_DRO] Xylotex or Gecko step driver for my Mill/Drill?

On Sun, 16 May 2004 23:18:44 -0500, you wrote:

>
>
>Harvey White wrote:
>
>>As far as the Gecko is concerned, my feeling is that it is not built
>>around the same chip, and that Mariss (think I remember it right) has
>>some exceptions to take with the algorithm in the chip.
>>
>>
>Of course it isn't. The Gecko 201 and 210 don't use any
>application-specific
>chip. It is mostly 4000-series CMOS and 8 power FETs. It is a bipolar
>drive, capable of 80 V operation. So, it obviously can't be using the
>Allegro
>chip.

Thanks, I don't have any to look at, so I had no idea what's inside.
I have seen integrated chips driving external FETS, though.

Harvey

>
>Jon
>
>
>
>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
>
>
>
>
>