Common mode choke as boost inductor - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 4th July 2008, 05:27 PM   #1
diyAudio Member
 
Join Date: Feb 2008
Send a message via Yahoo to jegandren
Default Common mode choke as boost inductor

Hi all,


Can i use a common mode choke 1mH as a boost inductor for my power factor controller.

Many Thanks
  Reply With Quote
Old 4th July 2008, 06:04 PM   #2
Eva is offline Eva  Spain
diyAudio Member
 
Eva's Avatar
 
Join Date: Oct 2003
Location: Near the sea
Send a message via MSN to Eva
Consider that 1mH is the common mode inductance, and that it will saturate at a very low current. The leakage inductance (differential mode) is much lower, like 5uH to 50uH only, and it's air based so it won't saturate but it will produce an undesirably strong leakage flux. You need a dedicated boost inductor.
__________________
I use to feel like the small child in The Emperor's New Clothes tale
  Reply With Quote
Old 5th July 2008, 04:13 AM   #3
diyAudio Member
 
Join Date: Feb 2008
Send a message via Yahoo to jegandren
Just to confirm, actually im not very sure the L1 in the circuit attached is a common mode choke or a boost inductor. please advise.
Attached Images
File Type: jpg untitled.jpg (37.3 KB, 166 views)
  Reply With Quote
Old 5th July 2008, 05:18 AM   #4
diyAudio Member
 
wrenchone's Avatar
 
Join Date: Feb 2004
Location: Silicon Valley
L1 is a boost inductor with auxiliary bias winding.
  Reply With Quote
Old 7th July 2008, 05:43 PM   #5
diyAudio Member
 
N-Channel's Avatar
 
Join Date: Mar 2003
Location: Sol System
Send a message via AIM to N-Channel
....which is used to power the PFC chip after initial startup............
__________________
-. ---.. -..- ---
  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
Common-mode choke discussion please stellavox Power Supplies 8 25th July 2009 12:00 AM
Common mode choke model eyalne Tubes / Valves 4 25th February 2008 10:22 AM
common mode choke question schiller Tubes / Valves 4 13th February 2008 09:34 AM
isolation transformer as common mode choke? av-trouvaille Power Supplies 3 4th July 2005 10:33 AM
Common mode filter choke... JojoD818 Solid State 11 27th November 2003 01:59 PM


New To Site? Need Help?

All times are GMT. The time now is 01:23 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