Can the laminates be viewed as parallel plate capacitors? At high frequencies, the eddy currents will then have a low impedance path. Thanks, Vinu Steve Rogers wrote: > I have seen a number of simple derivations explaining why it is a good idea > to laminate a conductor which lies in a magnetic field. The idea being to > slice up the material in the direction of the flux and hence break the path > of eddy currents. This is all very well and good, I then find it mentioned > in passing that this technique fails at high frequency but have not yet > found a good explanation as to why? > > Would anyone care to have a stab at an explanation, or maybe poiint me in > the direction of one? > > Thanks in advance > > Steve > > Steve Rogers B.Eng(Hons) AMIEE > RF Design Engineer > Micromill Electronics Limited > > email: srogers@xxxxxxxxxxxxx > Tel : +44 (0) 2392 366600 > Fax : +44 (0) 2392 366673 > Website: http://www.micromill.com > > Micromill Electronics Limited > Leydene House > Waterberry Drive > Waterlooville > Hampshire > PO7 7XX > United Kingdom > > Registered No. 1456922 (England). Registered Address: Brook Road, Wimborne, > Dorset, BH21 2BJ. > > THIS EMAIL AND ANY ATTACHED FILES ARE CONFIDENTIAL AND MAY BE LEGALLY > PRIVILEGED > If you are not the addressee, any disclosure, reproduction, copying, > distribution, or other dissemination or use of this communication is > strictly prohibited. If you have received this transmission in error please > notify the sender immediately and then delete this e-mail. > > It is the policy of Micromill Electronics Limited that no legally binding > statements, representations or commitments (collectively 'statements') may > be made by e-mail. Any such statements must be confirmed either by > facsimile transmission or by post before they will have legal effect. The > sender of this e-mail is not authorised to commit the company in any way and > the addressee is hereby formally notified of that fact. > > ------------------------------------------------------------------ > To unsubscribe from si-list: > si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > > or to administer your membership from a web page, go to: > http://www.freelists.org/webpage/si-list > > For help: > si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > List archives are viewable at: > http://www.freelists.org/archives/si-list > or at our remote archives: > http://groups.yahoo.com/group/si-list/messages > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: http://www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: http://www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu