Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

F5 power supply "balance"
F5 power supply "balance"
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 1st March 2011, 03:04 AM   #1
CanAm Man is offline CanAm Man  United States
diyAudio Member
Join Date: Sep 2006
Location: Santa Rosa Beach, FL
Default F5 power supply "balance"

In my F5 build, I've opted to use a loudspeaker protection circuit.

Each PCB (one for each channel) contains two relays, and when in operation the two PCBs (four relays activated) draw about 140 mA at 12 VDC.

I'm considering tapping into one of the F5 PSU rails to drive the two protection boards through a small 12 VDC switching regulator IC.

I'm a litte concerned about pulling the 140 mA from one of the F5 PSU rails, and if this may "unbalance" to rails--and what impact this might have on the amp output (distortion, etc).

Is this an issue I could be concerned about?

I realize my options options are (1) winding an additional secondary coil on the torroid to attain about 8-9 VAC, or (2) installing a small transformer in addition to the F5 transformer.

Thoughts? ..........and thanks..........
  Reply With Quote
Old 1st March 2011, 09:06 AM   #2
Zen Mod is online now Zen Mod  Serbia
Official Court Jester
diyAudio Member
Zen Mod's Avatar
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
F5 power supply "balance"
don't loose your sleep about that issue

or just buy small print mount xformer .....
my Papa is smarter than your Nelson !
clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa... by Mighty ZM
  Reply With Quote


F5 power supply "balance"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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
power supply schematic with a 6080 used as a "pass tube" jarthel Tubes / Valves 4 9th July 2012 02:25 AM
High Voltage Power Supply PCB "oopsie" Sale Geek Swap Meet 1 2nd January 2009 05:06 AM
Developing a "universal" tube power supply PCB Geek Tubes / Valves 42 15th August 2007 07:10 AM
"Power Tracking" in supply, ever heard, DIY ideas? Cradle22 Solid State 19 4th June 2003 09:02 AM
Audio Crafters Guild "Super Symmetric Power Supply" raincheck Digital Source 16 22nd April 2002 08:06 AM

New To Site? Need Help?

All times are GMT. The time now is 06:22 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio