RE: [CAD_CAM_EDM_DRO] Re: DC brush type motor control

You must have found a PC supply with EMC noise issues. I have stripped many
that went bang, but rarely found a toroid big enough, but it's worth a try.



Dr. Mark Vaughan Ph'D. B.Eng. M0VAU

Managing Director

Vaughan Industries Ltd, reg in UK no 2561068

Water Care Technology Ltd, reg in UK no 4129351

Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
Phone/Fax 44 1872 561288

RSGB DRM111(Cornwall)

_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Hugh Prescott
Sent: 06 April 2007 19:16
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: DC brush type motor control



Theree are one or more nice toroids in PC powersupplys. Find some failed
ones and remove the toroids.

Remove the wire and rewind with wire suitable for your power requirements.

I did this when I updated my BP with a VFD. Scoped the power afterwards
and it is clean.

Final wireing will be in flexable metal conduit.

Hugh

Leslie Newell wrote:

>Hi Shadi,
>
>You need one for every drive. Take the two motor wires and wind them
>both through the toroid about 6 or 7 times. Try to keep the wires
>together as you wind them. The toroid wants to be as close to the drive
>as possible.
>
>I used some toroids that I happeded to have lying around. You can get
>them from most electronics suppliers. I am in the UK and one supplier I
>use is RS components. Go to www.rswww.com and enter this code: 467-4554.
>That will give you an idea what you are looking for. They are probably
>about the smallest you can use. Within reason, bigger is better. RS have
>offices in quite a few countries. If you are in the US, Digikey, Newark
>or Mouser probably stock them.
>
>
>Les
>
>shadi_salhab_78 wrote:
>
>
>>
>> Hi Les,
>>
>>Where can I get those ferrite toroids ?
>>Thanks,
>>
>>Shadi
>>
>>
>>
>>
>
>
>
>Addresses:
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ing.com/faq.html

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