Re: Electronics gurus please help
Posted by
mariss92705
on 2002-09-10 13:11:56 UTC
vajk,
The most important PCB layout consideration for power circuits is
ground and power supply distribution. If you like, send me your
circuit diagram and board layout and I will critique it for you. Best
would be a .dxf or .dwg format. Use the mariss92705@... e-mail
address.
Mariss
The most important PCB layout consideration for power circuits is
ground and power supply distribution. If you like, send me your
circuit diagram and board layout and I will critique it for you. Best
would be a .dxf or .dwg format. Use the mariss92705@... e-mail
address.
Mariss
--- In CAD_CAM_EDM_DRO@y..., Vajk Fekete <vajk.fekete@o...> wrote:
> hi,
>
> i am building a stepper driver for my homemade mill, that i am
going to use with EMC.
>
> i have salvaged some steppers (60ozin, 6 wire), and also the driver
chip from old printers.
> the driver is a sla7026, 3A max chopper, unipolar.
>
> question1: is a chopper unipolar driver much worse than a chopper
bipolar drive?
>
> question2: a bit longer, and i badly need advice here:
>
> i have built an axis drive on veroboard, with rather long wires,
etc, and it worked ok.
> then i made a rather simple pcb, built a sigle axis on that, and
after correcting some errors, it works ok.
> then i made a final design for the pcb, built one axis, and it does
not work. built another, and the with same symptoms it is not working.
>
> so experts: at a chopping frequency a couple 10Khz, could the pcb
layout have this much influence? i checked all the components, all
the connections, spent about 2 days on it, so i am 98% that the
> working and not working circuit only differs in the shape of the
traces.
>
> i am no EE, but have some electronics building experience, more
from the digital world. and i do not have a scope, so cannot check if
the timer is working ok or not.
>
> any ideas are welcome,
>
> thanks,
>
> vajk
Discussion Thread
Vajk Fekete
2002-09-10 08:14:40 UTC
Electronics gurus please help
Peter
2002-09-10 09:15:36 UTC
Re: [CAD_CAM_EDM_DRO] Electronics gurus please help
bsptrades
2002-09-10 10:33:49 UTC
Re: Electronics gurus please help
caudlet
2002-09-10 11:25:32 UTC
Re: Electronics gurus please help
mariss92705
2002-09-10 13:11:56 UTC
Re: Electronics gurus please help
Vajk Fekete
2002-09-10 13:44:29 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Peter
2002-09-10 14:14:57 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
JanRwl@A...
2002-09-10 15:05:29 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Erik Reikes
2002-09-10 16:00:58 UTC
Re: Electronics gurus please help
caudlet
2002-09-10 16:25:56 UTC
Re: Electronics gurus please help
Raymond Heckert
2002-09-10 17:39:25 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Jon Elson
2002-09-10 22:20:59 UTC
Re: [CAD_CAM_EDM_DRO] Electronics gurus please help
Jon Elson
2002-09-10 22:28:48 UTC
Re: [CAD_CAM_EDM_DRO] Electronics gurus please help
Les Newell
2002-09-10 23:41:42 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Peter
2002-09-11 06:21:42 UTC
Re: [CAD_CAM_EDM_DRO] Electronics gurus please help
Carl Mikkelsen, Oasis
2002-09-11 06:52:00 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
mariss92705
2002-09-11 09:58:57 UTC
Re: Electronics gurus please help
Jon Elson
2002-09-11 10:25:40 UTC
Re: [CAD_CAM_EDM_DRO] Electronics gurus please help
Scott M. Thomas
2002-09-11 11:30:57 UTC
RE: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
mariss92705
2002-09-11 12:38:48 UTC
Re: Electronics gurus please help
mayfieldtm
2002-09-11 12:46:01 UTC
Re: Electronics gurus please help
Scott M. Thomas
2002-09-11 12:54:25 UTC
RE: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Ian W. Wright
2002-09-11 14:38:35 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
mariss92705
2002-09-11 19:01:20 UTC
Re: Electronics gurus please help
scottdbtnet
2002-09-11 19:08:58 UTC
Re: Electronics gurus please help
scottdbtnet
2002-09-11 19:30:01 UTC
Re: Electronics gurus please help
mariss92705
2002-09-11 21:45:52 UTC
Re: Electronics gurus please help
Scott M. Thomas
2002-09-12 05:52:34 UTC
RE: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Jon Elson
2002-09-12 10:17:57 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Scott M. Thomas
2002-09-12 11:42:16 UTC
RE: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Steven Ciciora
2002-09-12 14:48:02 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
mariss92705
2002-09-12 15:29:56 UTC
Re: Electronics gurus please help
Raymond Heckert
2002-09-12 16:49:05 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Keith Bowers
2002-09-12 17:02:44 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
Jon Elson
2002-09-12 22:16:51 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
yildirimalper
2002-09-12 23:11:01 UTC
Re: Electronics gurus please help
MIKEC@W...
2002-09-13 00:10:42 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
MIKEC@W...
2002-09-15 13:01:35 UTC
Re: [CAD_CAM_EDM_DRO] Re: Electronics gurus please help
mariss92705
2002-09-15 13:25:50 UTC
Re: Electronics gurus please help