Centre tapped coil with in a coil - inductance?
 User Name Stay logged in? Password
 Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read Search

 Solid State Talk all about solid state amplification.

 Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
 31st March 2010, 04:05 PM #1 peskywinnets   diyAudio Member   Join Date: Mar 2010 Location: United Kingdom Centre tapped coil with in a coil - inductance? What happens if you wind a coil around an iron core, stop, centre tap it, then wind the same amount of turns around (the first coi) again? (you end up with a coil within a coil) I'm particularly interested in what the inductance would be for each half. For example I know that..... 100 turns of 0.3mm wire yields about 0.8mH so for this particular coil scenario, I end up with .... 100 turns of 0.3mm wire = 0.8mH ground tap 100 turns of 0.3mm wire = 0.8mH if putting an AC signal through one half of the coil will it affect the other half? (yes I know each leg will require an inverted signal...but I'm wondering if the AC signal through one coil impacts the other, therefore playing havoc with the inductance aspect)
 31st March 2010, 06:13 PM #2 Bob Scott   diyAudio Member   Join Date: Apr 2009 Yes. It becomes a poor transformer. Both sides are coupled to each other by the core. The inductance of a coil is proportional to the square of the number of turns. However, the inductance fo two independent inductances in series is the sum of both. The square formula only works if both windings are on the same core.

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Site     Site Announcements     Forum Problems Amplifiers     Solid State     Pass Labs     Tubes / Valves     Chip Amps     Class D     Power Supplies     Headphone Systems Source & Line     Analogue Source     Analog Line Level     Digital Source     Digital Line Level     PC Based Loudspeakers     Multi-Way     Full Range     Subwoofers     Planars & Exotics Live Sound     PA Systems     Instruments and Amps Design & Build     Parts     Equipment & Tools     Construction Tips     Software Tools General Interest     Car Audio     diyAudio.com Articles     Music     Everything Else Member Areas     Introductions     The Lounge     Clubs & Events     In Memoriam The Moving Image Commercial Sector     Swap Meet     Group Buys     The diyAudio Store     Vendor Forums         Vendor's Bazaar         Sonic Craft         Apex Jr         Audio Sector         Acoustic Fun         Chipamp         DIY HiFi Supply         Elekit         Elektor         Mains Cables R Us         Parts Connexion         Planet 10 hifi         Quanghao Audio Design         Siliconray Online Electronics Store         Tubelab     Manufacturers         AKSA         Audio Poutine         Musicaltech         Aussie Amplifiers         CSS         exaDevices         Feastrex         GedLee         Head 'n' HiFi - Walter         Heatsink USA         miniDSP         SITO Audio         Twin Audio         Twisted Pear         Wild Burro Audio

 Similar Threads Thread Thread Starter Forum Replies Last Post karagiosis Subwoofers 8 5th September 2009 05:04 PM chylld Full Range 2 15th January 2009 08:10 PM Klimon Multi-Way 4 19th November 2006 01:23 PM Gavinator68 Multi-Way 7 20th May 2005 04:05 PM kan3 Multi-Way 12 9th February 2004 09:18 PM

 New To Site? Need Help?

All times are GMT. The time now is 05:39 AM.