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Re: Filter Choke Design
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Filter Choke Design
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From: "SROYS" <SROYS-at-radiology.ab.umd.edu>
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Date: Fri, 8 Mar 1996 12:03:28 EDT
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>Received: from comm1.ab.umd.edu (comm1.ab.umd.edu [134.192.1.5]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id KAA21290 for <tesla-at-grendel.objinc-dot-com>; Fri, 8 Mar 1996 10:07:29 -0700
> Proof: (for single coil)
> E dt = NA dB => dB/dT = E/NA
> let voltage between the ends of the coil be low like it is for low
> freq. signals. Then magnetic flux will be low too. On the other hand,
> for high freq. E will be signifficant when the coil is ringing and
> dB/dt will lead to change in magnetic flux.
It's been years since I've had any physics, but dB/dt is the change in
magnetic field wrt/time, not the magnetic flux itself. A Dc current is
great at producing magnetic flux, the flux just doesn't have any time
varying component.
Steven Roys (sroys-at-radiology.ab.umd.edu)