MOSFET Output Pair Suggestions ?? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 22nd September 2003, 07:08 PM   #1
sam9 is offline sam9  United States
diyAudio Member
sam9's Avatar
Join Date: Jun 2002
Location: Left Coast
Default MOSFET Output Pair Suggestions ??

I've made a couple of small BJT amps in the low power range (15V-30V) and I thinking about doing something similar using MOSFETs in a SF configuration. Physical size is a factor so I'm looking for a TO-220 package. Scanning the usual catalogs (DMgikey, Mouser, etc) it is hard to figure out what would constitute a complimentary pair.

Any suggestions in this regard? Naturally it would be nice if they were readily available.
  Reply With Quote
Old 22nd September 2003, 07:17 PM   #2
PMA is offline PMA  Europe
diyAudio Member
PMA's Avatar
Join Date: Apr 2002
Location: Prague
  Reply With Quote
Old 22nd September 2003, 07:53 PM   #3
DrG is offline DrG  South Africa
diyAudio Member
Join Date: Aug 2003
Location: Pretoria
In your specified voltage range IRF510 / IRF9510 would probably suffice.
  Reply With Quote
Old 22nd September 2003, 09:08 PM   #4
Account Disabled
Join Date: Apr 2003
Location: US
I would 2nd PMA's suggestion.

My experience with those mosfets tho. is that they are not very stable in anything other than an EF-equivalent set-up.

Other than that, those are great output devices, impossible to blow-up, .

BTW, those aren't complimentory pairs. The Hitachi pair is but they are expensive.
  Reply With Quote
Old 23rd September 2003, 12:17 AM   #5
blmn is offline blmn  Brazil
diyAudio Member
blmn's Avatar
Join Date: Feb 2001
Location: .
As millwood said, they are not complimentary. For example, different gate capacitances must be considered during the design.

  Reply With Quote
Old 23rd September 2003, 01:07 AM   #6
sam9 is offline sam9  United States
diyAudio Member
sam9's Avatar
Join Date: Jun 2002
Location: Left Coast
Thanks for the input. I found SPICE models at the DuncanAmp website, so I will be working with those for a while. At least then I will have some idea what the likelyhood of getting ssomething satisfactory will be.
  Reply With Quote


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
Is the Toshiba 2SJ201/2SK1530 pair (Mosfet) suitable for output stage ? Johnix Solid State 23 4th August 2012 02:32 PM
Tube/MOSFET hybrid results/comments/suggestions? lgo51 Pass Labs 59 22nd June 2008 04:02 PM
DAC output mods - suggestions please. Pulse-R Digital Source 11 22nd February 2008 10:39 AM
AMPLIFIER SCHEMATIC USING OP AMP AND PAIR OF MOSFET's please zox2003 Solid State 12 16th March 2005 10:35 AM
suggestions required on mosfet matching setup for aleph x pamaz Pass Labs 4 20th February 2004 12:17 PM

New To Site? Need Help?

All times are GMT. The time now is 06:18 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2