Need help with ac transformer application - Page 2 - diyAudio
Go Back   Home > Forums > Design & Build > Construction Tips

Construction Tips Construction techniques and tips

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
Reply
 
Thread Tools Search this Thread
Old 17th February 2013, 02:16 PM   #11
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
SMPS - Switch Mode Power Supply.

The AC voltage applied is often very high frequency, 100KHz is not unusual these days. At these frequencies the core material ceases to be iron and is usually a ferrite compound, but more importantly, the number of turns per volts are drastically reduced.

Such a transformer cannot be used at 50/60Hz.
  Reply With Quote
Old 20th February 2013, 12:42 AM   #12
ehous is offline ehous  United States
diyAudio Member
 
Join Date: Jul 2006
Follow up: it requires 50vac @ 20khz...

I am hoping they can either come up with a supply for me to buy or a schematic of what they use. I imagine designing this my self is nearly impossible from Internet data sheets. Everything I can find is dc output...
  Reply With Quote
Old 20th February 2013, 01:45 PM   #13
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
Designing a 20kHz SMPS is not too difficult, especially at the low voltage of 50V.

They become very difficult to design at higher frequencies, higher power and higher voltages.

Try looking at the TL494 datasheet for ideas.

http://pdf1.alldatasheet.com/datashe...OLA/TL494.html

Last edited by KatieandDad; 20th February 2013 at 01:48 PM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
~20V AC threw ~100V AC to 12 V AC abcdmku Power Supplies 9 13th January 2013 03:04 PM
Transformer with uneven ac out geminni Solid State 6 1st February 2008 05:52 AM
AC to dual transformer dmh Chip Amps 1 20th March 2005 10:18 AM
Output transformer application help please. bobhayes Tubes / Valves 18 23rd October 2004 03:47 AM


New To Site? Need Help?

All times are GMT. The time now is 10:48 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2