I was thinking along those same lines. Radars with distributed power amps
typically run with PRFs in the KHz region or higher.
Also switching power supplies.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Jonathan Riley
Sent: Wednesday, June 22, 2016 5:15 PM
To: dbrooks9@xxxxxxxxxxxxxxx
Cc: SI
Subject: EXT :[SI-LIST] Re: High current AC traces?
Hi Doug
How about SSPAs (Solid State Power Amplifiers)? These can have output power
levels of 100's of watts into 50 Ohms at frequencies well into the 10-20GHz
range. Here power loss of a fraction of a dB means a not insignificant heating
of the tracks. In addition to the signal path, power distribution network to
the GaN devices probably also counts as efficiency is often around 25% or so.
Regards
Jonathan
On 22 June 2016 at 21:58, Doug Brooks <dbrooks9@xxxxxxxxxxxxxxx> wrote:
Hi All,
My collaborator and I are finishing up some research into high current
AC traces, but wonder how many applications there really are for such
designs.
Could you provide me with some example applications where PCB traces
need to carry, say, 4.0 Amps or more of 1. Repetitive, pulsed signals
at any frequency (even fractions of a Hz.) 2. Pulsed or AC signals at
any frequencies, especially above 1.0 KHz or so?
Thanks
Doug Brooks
--
********************************************
See Doug's latest book, available on Amazon.
"PCB Trace and Via Currents and temperatures; The Complete Analysis"
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