Alt-BEAM Archive
Message #05193
To: beam@sgiblab.sgi.com
From: Bob Shannon bshannon@tiac.net
Date: Fri, 09 Jul 1999 08:59:27 -0400
Subject: [alt-beam] Re: Something funny with the 1382 voltage triggers?
Steven Bolt wrote:
>
> > > It's a matter of reliably working with diverse motors and solar
> > > panels, as your are finding out.
> >
> > Wrong again!
> >
> > We are dealing with the same solar cell, same capacitors, and same motors.
> > Please re-read the thread and subject line.
>
> You exchanged parts for equivalents and the design can't tolerate
> that. Doh. It should not only be indifferent to the changes you
> made, but also accept a wide range of solar panels, storage caps
> and motors. Else it isn't much good, imho.
Wrong yet again.
I used the same parts, not equivalents. You may wish to beleive otherwise, and
assume that the emperical evidence points in some other direction, but the
circuit
is not reacting to opinions.
End of thread?
> > No, I'm trying to learn what the difference in circuit operation is!
> > You seem to be trying anything and everything else but this.
>
> That's correct. Imho there is little point in exhaustively testing
> components for an indifferent design. I was taught that if a design
> fails to work as specified when components vary within the normally
> expected tolerance, then the design needs to be modified. Tinkering
> with values is unlikely to help. Even if you seem to succeed, the
> problem will come back to haunt you when production has started.
>
> Best,
>
> Steve
Normally expected tolerance, with the same parts?
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