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<blockquote data-quote="Electrodynamic" data-source="post: 4530509" data-attributes="member: 548723">Well it looks like I missed page 5!&nbsp; //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifI don&#039;t think John was saying anything about XBL^2 and it not improving transient response because he is referencing his own work which shows how his use of shorting rings lowers and helps linearize inductance also.Unless I totally missed something (this is the internet and things can be misconstrued), the air gap that&#039;s created by using XBL^2 has other things that go along with it.&nbsp; It&#039;s like placing a rock in the middle of a stream of water.&nbsp; Does the water stop?&nbsp; Nope.&nbsp; It gets diverted.&nbsp; Same goes with XBL^2.&nbsp; If the gap isn&#039;t completely saturated to begin with, putting a rebate in the top plate and pole piece diverts flux - it doesn&#039;t reduce the flux.&nbsp; If the gap was already saturated you couldn&#039;t force more flux through the new, smaller, dual gaps.&nbsp; But if it&#039;s not completely saturated, the flux gets diverted.&nbsp; Also, the gaps used in XBL^2 are actually quite tight.As Richard mentioned, we use a &quot;sleeve&quot; too.&nbsp; Ours is an anodized pole piece instead of a conventional sleeve.&nbsp; The shorting ring we use is just to help, not to solve.</blockquote>

[QUOTE="Electrodynamic, post: 4530509, member: 548723"] Well it looks like I missed page 5! [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] I don't think John was saying anything about XBL^2 and it not improving transient response because he is referencing his own work which shows how his use of shorting rings lowers and helps linearize inductance also. Unless I totally missed something (this is the internet and things can be misconstrued), the air gap that's created by using XBL^2 has other things that go along with it. It's like placing a rock in the middle of a stream of water. Does the water stop? Nope. It gets diverted. Same goes with XBL^2. If the gap isn't completely saturated to begin with, putting a rebate in the top plate and pole piece diverts flux - it doesn't reduce the flux. If the gap was already saturated you couldn't force more flux through the new, smaller, dual gaps. But if it's not completely saturated, the flux gets diverted. Also, the gaps used in XBL^2 are actually quite tight. As Richard mentioned, we use a "sleeve" too. Ours is an anodized pole piece instead of a conventional sleeve. The shorting ring we use is just to help, not to solve. [/QUOTE]

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