Mosfet Regulator Question - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 28th March 2004, 02:35 AM   #1
diyAudio Member
 
Rory Christ's Avatar
 
Join Date: Oct 2002
Location: Milwaukee, WI
Default Mosfet Regulator Question

I'm working on a preamp power supply that will require three different voltages (5, 24 and 60). I found a wealth of information digging through the Aleph/Zen preamp manuals/articles and believe I understand the basics of how to configure a mosfet voltage follower regulator. However, one question remains...

In the Aleph P 1.7 schematic, the regulator for the relay supply and display board supply have resistors from the mosfet's source to ground. (10K for the relay supply, not specified for the display board). I'm not sure I understand the function of these resistors, and why they are needed for these two regulators, but not the main preamp supply regulator. Perhaps there is a need to keep some current flowing when none of the relays are energized?

If someone could provide an explanation, it would be most appreciated.

Rory
  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
Series MOSFET regulator better with just voltage ref on gate or with error amp? ray_moth Tubes / Valves 69 20th May 2011 01:35 AM
Simple opamp/mosfet shunt regulator iko Solid State 64 12th March 2009 06:38 PM
Low-parts high voltage MOSFET regulator arnoldc Power Supplies 1 6th June 2006 10:25 AM
regulator question fezz Parts 12 16th April 2003 03:10 PM
Regulator question Mark Hayenga Solid State 2 9th January 2003 08:11 PM


New To Site? Need Help?

All times are GMT. The time now is 12:48 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