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Re: Pri-Sec Phasing
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To: tesla@pupman.com
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Subject: Re: Pri-Sec Phasing
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From: Tesla List <mod1@pupman.com>
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Date: Tue, 7 Oct 1997 21:02:25 -0600 (MDT)
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Approved: mod1@poodle.pupman.com
---------- Forwarded message ----------
Date: Tue, 7 Oct 1997 17:29:45 -0700 (PDT)
From: "Edward V. Phillips" <ed@alumni.caltech.edu>
To: tesla@pupman.com
Subject: Re: Pri-Sec Phasing
"E = -L.di/dt (everybody ignores the minus sign, right? :)
"
Not around here! Just think of what happens when you
open a switch in a circuit containing a source and an inductor.
Since the current "wants to remain constant" the voltage on
the coil will rise (di/dt is negative in this case). Point
to observe is that in tube type flyback supplies the plate
voltage swings way positive as you cut off the plate current.
Ed