Depends on how you measure AC amps.
If you are talking about RMS measures (which you probably are) then the
answer is no, you do not treat them differently.
If you are talking about PEAK amps, or even Peak-to-peak amps, then there
is a difference.
But if you are talking about AVERAGE AC amps, then any trace width will do!
Doug Brooks
At 04:04 PM 2/26/01 -0500, Schwartz, Jerome wrote:
>All,
>
>I have a related question to current.
>
>Should AC currents be treated differently ?
>
>Regards,
>
> Jerry Schwartz, CID
> IPC Certified Interconnect Designer
> "May the Schwartz be with you"
>
>Jerry Schwartz, CID Designer 3
>Harris Corporation GCSD Voice (321)-727-5474
>P.O. Box 37, MS 1/9843 Fax (321)-729-5990
>Melbourne, FL 32902-0037 Pager (321)-690-9797
>mailto:[log in to unmask]
>http://harris.com
>
>
>-----Original Message-----
>From: Amira Mohammed [mailto:[log in to unmask]]
>Sent: Monday, February 26, 2001 4:39 AM
>To: [log in to unmask]
>Subject: Re: [DC] Trace width
>
>
> Dear Phil and Gary,
>
> Thank you for both of you
>You are right .When I've asked about this,I told that we want some safty
>factor for surge current , so should I calculate the trace width depending
>on the maximum current value may be take place due to surge current, or
>there is another way to calculate it?
>Thanks in advance
>Regards,
>
>Amira Mohamed
>PCB Designer
>IEP
>www.bahgat .com
>
>
>
> > ----------
> > From: Gary Ferrari[SMTP:[log in to unmask]]
> > Reply To: DesignerCouncil E-Mail Forum.;[log in to unmask]
> > Sent: Monday, February 26, 2001 4:21 AM
> > To: [log in to unmask]
> > Subject: Re: [DC] Trace width
> >
> > Amira,
> >
> > I tend to agree with Phil on this one. The 5 amp current should be a
> > continuos value. Is there any possiblilty that you may be seeing a surge
> > current of a much larger value when you turn on the circuit?
> >
> > Regards,
> >
> > Gary Ferrari
> > Executive Director
> > IPC Designers Council
> > 860-350-9300
> > Fax 413 771-5386
> > [log in to unmask]
> >
>
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Doug Brooks' book "Electrical Engineering for the Non-Degreed
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.
Doug Brooks, President [log in to unmask]
UltraCAD Design, Inc. http://www.ultracad.com
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