[SI-LIST] Re: DC resistance of the Power Supply on PCB
- From: zhangkun 29902 <zhang_kun@xxxxxxxxxx>
- To: a.ingraham@xxxxxxxx
- Date: Wed, 30 Nov 2005 23:02:58 +0800
Dear Andy
I measure the dc resistance between Power and Ground. Normally, the resistance
is about dozens of ohms.
Best Regards
Zhangkun
2005.11.30
******************************************************************************************
This email and its attachments contain confidential information from HUAWEI,
which is intended only for the person or entity whose address is listed above.
Any use of the information contained herein in any way (including, but not
limited to, total or partial disclosure, reproduction, or dissemination) by
persons other than the intended recipient(s) is prohibited. If you receive this
e-mail in error, please notify the sender by phone or email immediately and
delete it!
*****************************************************************************************
----- Original Message -----
From: Andrew Ingraham <a.ingraham@xxxxxxxx>
Date: Wednesday, November 30, 2005 10:45 pm
Subject: [SI-LIST] Re: DC resistance of the Power Supply on PCB
> > In our testing, we often use multimeter to measure the DC
> resistance of
> > power net, while the product is powered off. Sometime, the
> measure result
> > is about 1 ohm. I do not understand why.
>
> Do you mean the resistance from point A to point B of the same net
> (and that
> you think 1 ohm is too large)?
>
> Or do you mean the resistance between + and - rails of a board
> that is fully
> populated with active devices and capacitors (and that you think 1
> ohm is
> too small)?
>
> Please clarify.
>
> Also please suggest what resistance you would have expected in
> your case.
>
> Regards,
> Andy
>
>
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
> List FAQ wiki page is located at:
> http://si-list.org/wiki/wiki.pl?Si-List_FAQ
>
> List technical documents are available at:
> http://www.si-list.org
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
>
>
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List FAQ wiki page is located at:
http://si-list.org/wiki/wiki.pl?Si-List_FAQ
List technical documents are available at:
http://www.si-list.org
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
