Isolation transformer. North America 110V - diyAudio
Go Back   Home > Forums > Design & Build > Equipment & Tools

Equipment & Tools From test equipment to hand tools

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 21st November 2009, 11:25 PM   #1
diyAudio Member
 
Join Date: Apr 2005
Location: Simcoe Ont
Default Isolation transformer. North America 110V

I recently bout a transformer to clean up my AC line. I thought I was getting 1:1 but it appears that I have 1500 Watt 2:1. It has european 220 Male and North american 110V female. Can I make use of this transformer? What is the best way to use it? Can I connect it to 220 in this house and use the 110 Output?
  Reply With Quote
Old 22nd November 2009, 02:02 AM   #2
diyAudio Member
 
Speedskater's Avatar
 
Join Date: Sep 2002
Location: Lakewood, Ohio
Probably yes. You will have to work out getting a 240V AC line to your listening room, the correct 240V dual breaker, the correct 240V connector and the safety ground issues.
Going from 50Hz to 60Hz and from 220V to 240V won't phase a power transformer at all.
__________________
Kevin
  Reply With Quote
Old 22nd November 2009, 02:19 AM   #3
WAJIH is offline WAJIH  Australia
diyAudio Member
 
Join Date: Jul 2009
Location: Perth
Hi peoples

im designing a dc to dc converter with a dual polarity (+-30v) (+-6A) output.
i am using an example from Switchmode Power Supply For Car Audio
i just have trouble understanding one thing. please bear with me as i try and explain myself.

The transformer i will wind myself needs two primary and two secondary coils.
i will be applying 12v, 30A(car battery) to center tap of primary and need to get 30v and 6 amps. one for the positive rail and one for the negative rail.

I understand how to get the voltage and current on primary side of transformer. I also understand voltage on secondary of transformer. the only thing im not sure about is how on earth u can get 6A per rail when Faradays transformer equation clearly states:

v1/v2 = i2/i1
so..12A/30V = xV/30A
solving for x i get 12A on secondary.

now 12A cant be spilt to get 6A because i have two secondaries or does it??
then if so does the 30v output split so i get 15v on each rail?????????????

THanks for allowing me to confuse u
any help would be much appreciated
__________________
IF ELECTRICITY IS FROM ELECTRONS, DOES THAT MEAN MORALITY IS FROM MORONS
  Reply With Quote
Old 22nd November 2009, 12:58 PM   #4
diyAudio Member
 
thermal runaway's Avatar
 
Join Date: Mar 2007
Location: West Mids , UK
WAJHI,
The way your description reads it appears you are intending to connect DC to the primary and expect stepped up DC on the secondary ?? If so , you will be disappointed as transformers do not work on DC !! If I have misread please ignore
  Reply With Quote
Old 23rd November 2009, 02:48 AM   #5
WAJIH is offline WAJIH  Australia
diyAudio Member
 
Join Date: Jul 2009
Location: Perth
its ok i understand how it works.

if you look at the link i sent u u would see that this is a step up dc to dc converter incorporating a transformer. so to answer ur question Thermal Runaway yes u can use transformers in a switch mode power supply.
__________________
IF ELECTRICITY IS FROM ELECTRONS, DOES THAT MEAN MORALITY IS FROM MORONS
  Reply With Quote
Old 23rd November 2009, 08:46 AM   #6
diyAudio Member
 
thermal runaway's Avatar
 
Join Date: Mar 2007
Location: West Mids , UK
It's all clear now
  Reply With Quote
Old 30th November 2009, 12:43 AM   #7
amc184 is offline amc184  New Zealand
diyAudio Member
 
amc184's Avatar
 
Join Date: May 2007
Location: Christchurch
To the original poster:

Most step-down / step-up transformers like the one you bought are autotransformers, and do not isolate.
  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
Where to buy Nichicon HZ, HN or Rubycon MCZ in North America ? percy Parts 19 15th August 2010 12:25 PM
Where to get Tang Band drivers in North America? akunec Multi-Way 12 21st November 2009 11:20 PM
Anyone know of a Ciare dealer in North America? Tony D. Multi-Way 2 11th October 2005 09:26 PM
Europe and North America serengetiplains Everything Else 17 15th August 2004 11:08 PM
North America's Best High End Hi-fi Show alvaius Everything Else 4 29th January 2003 11:17 PM


New To Site? Need Help?

All times are GMT. The time now is 06:04 PM.


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