high frequency transformers - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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 12th April 2009, 07:40 PM   #1
ohuzoor is offline ohuzoor  India
diyAudio Member
 
Join Date: Apr 2009
Default high frequency transformers

hey! my first post here... I'm interested in getting info about a specific transformer:

primary: 180V max
secondary: 6000V max
freq.: 450KHz
power: 300Watt max

can I get anything on the design of such a weird transformer?

thanks!
  Reply With Quote
Old 12th April 2009, 08:45 PM   #2
diyAudio Member
 
unclejed613's Avatar
 
Join Date: Dec 2006
looks like you're going to have to "roll your own" 6kV at 50mA at 450khz is not an easy design. you will need to wind the secondary in pancakes with 30ga wire. each pancake will have to be wound for half the breakdown voltage of the wire insulation. the current on the primary will be close to 2A requiring 18ga or 16ga wire. the windings will need to be kept with as little distributed capacitance as possible. you could try doubling up a couple of TV flyback cores to make your core, as i think 300W would definitely saturate a single core.

making a transmitter?
__________________
Vintage Audio and Pro-Audio repair ampz(removethis)@sohonet.net
spammer trap: spammers must die
  Reply With Quote
Old 12th April 2009, 10:37 PM   #3
diyAudio Member
 
unclejed613's Avatar
 
Join Date: Dec 2006
to anybody reading this, including moderators.....
this question was cross-posted to the Electro-Tech-Online forum with this little tidbit of info that wasn't posted here:
__________________________________________________ _________
the transformer is to be used as part of the output stage in an electrosurgical unit.
__________________________________________________ __________

this is for a piece of medical equipment!!!!!!!!

what follows is my answer to him on the other forum......

__________________________________________________ _________
i answered this question about 2 hrs or so ago in DIYaudio.com........
if i had known this was for a piece of medical equipment i wouldn't have answered by telling him how to build one. MEDICAL EQUIPMENT FOLLOWS VERY STRICT SAFETY AND RELIABILITY STANDARDS, SO DON'T MESS AROUND WITH REPLACING PARTS WITH DIY AND SECOND SOURCE PRODUCTS!!!!!!! sorry, that one need shouting. don't mess around with a piece of equipment on which somebody's life may depend.......

when this question was cross-posted at DIYaudio, the little tidbit about it being for a piece of medical equipment wasn't included.....


__________________________________________________ ___________
__________________
Vintage Audio and Pro-Audio repair ampz(removethis)@sohonet.net
spammer trap: spammers must die
  Reply With Quote
Old 13th April 2009, 01:15 AM   #4
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi ohuzoor,
Is this true? Are your repairing a piece of medical equipment?

If not, that is a specialized part. There are some people here who could design it, but they need to know what the end product is. There are strict safety regulations with any equipment that may threaten life in the event of a failure. Also, the duty cycle and power actually delivered are important factors.

If this is for medical equipment, you must not proceed! Not only do you need to obtain the original part, but there will be stringent leakage tests along with all other characteristics of that equipment. This is really beyond anyone but a lab authorized for those repairs, adjustment and certification would probably be required as well.

Can you please clarify the end use please? Additional information is required anyway.

-Chris
__________________
"Just because you can, doesn't mean you should" my Wife
  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
Wanted - High Power, High Voltage, Audio Frequency Transformer Manual. kimbal Tubes / Valves 4 11th May 2009 08:05 PM
High frequency high voltage oscillator - help! gentlevoice Analog Line Level 8 10th September 2008 02:52 PM
high frequency high voltage power supply... moray james Planars & Exotics 6 23rd July 2008 07:57 PM
Output transformers and frequency response dsavitsk Tubes / Valves 21 3rd December 2006 06:48 PM


New To Site? Need Help?

All times are GMT. The time now is 05:52 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