We fit busbar (25mm x 2mm) to the pcb to collect the current and provide
termination points to the world it overcomes the problems of terminals and
gives a stable location to bolt 35mm cables. It also makes like a heatsink
(of sorts)

Steve

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Ariel Rocholl
Sent: 14 November 2006 16:11
To: Microcontroller discussion list - Public.
Subject: Re: [EE] Anybody Used Allegro Current Sensor?

What about soldering a cable of the appropiate gauge rather a PCB lane? I
asked for samples to them some time ago and still waiting to get here, but
before receiving them my plan for measuring up to 100A was to use a cable
soldered to the PCB acting as a lane. Otherwise, it is not only the PCB may
not hold the high current, but the power loss will be very high with 100A
and the efficiency of the system will be impacted, something you should be
able to avoid with a hall effect sensor. Otherwise I would bet by a
resistive shunt.

2006/11/14, PicDude <picdude2@avn-tech.com>:
>
> Similar situation on my end.  The samples (130A-versions in my case) are
> on
> hold because I've not fouind a good way to run 130A on the PCB to the
> terminals of the current sensor.  I also remember not being able to find
> PCB
> screw terminals that can handle that much current.
>
> -Neil.
>
>
>
> On Tuesday 14 November 2006 00:08, Steve Smith wrote:
> > Bob:
> > I have a couple of samples but settled for shunts and op amps its
> cheaper.
> >
> > Steve
> >
> > -----Original Message-----
> > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of
> > Bob Axtell
> > Sent: 14 November 2006 02:12
> > To: Microcontroller discussion list - Public.
> > Subject: [EE] Anybody Used Allegro Current Sensor?
> >
> > Part number is ACS750SCA050 .
> >
> > With 5V in, provides a nom 2.5V output with no current
> > flowing. The chart indicates high accuracy in either direction
> > out to 50A. Insertion R is 130uOhm. Looks like all I have to
> > do is to acquire the 2.5V level when powering up (assuming
> > no current flow).
> >
> > The specs are so good I am skeptical. Anybody?
> >
> > --Bob
> > --
> > http://www.piclist.com PIC/SX FAQ & list archive
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-- 
Ariel Rocholl
Madrid, Spain
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http://www.piclist.com PIC/SX FAQ & list archive
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View/change your membership options at
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