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

Microphone power supply
Microphone power supply
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 25th February 2007, 07:24 PM   #1
carlmart is offline carlmart  Brazil
diyAudio Member
Join Date: Mar 2001
Location: Brazil
Default Microphone power supply

Has anyone here built a high quality power supply for a condenser microphone?

I am currently building a converter for my Sennheiser MKH416T microphone, based on this circuit:


As you can see it converts 48v from any phantom supply to 12v to feed the T supply. But I would like to improve on the zener regulator.

Current drain is very low: just 6mA.


  Reply With Quote
Old 28th February 2007, 05:25 AM   #2
digi01 is offline digi01  China
diyAudio Member
digi01's Avatar
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
I use battery for mine mic,I think this way is more easy.

  Reply With Quote
Old 28th February 2007, 06:27 AM   #3
imix500 is offline imix500  United States
diyAudio Member
imix500's Avatar
Join Date: Mar 2004
Location: Nashville, TN
We have a bunch of T-power adapters at work for the old 418's and such. I'll take one apart next time I'm there. They're old though, so they might also be zener based.
  Reply With Quote
Old 28th February 2007, 10:34 PM   #4
John Audio is offline John Audio  United Kingdom
diyAudio Member
Join Date: Mar 2003
Location: Exeter
This circuit will work very well - and there is no real reason to try and improve on the zener regulation.

Remember that with a Phantom supply - you have very limited current available, so the use of any sophisticated regulation is difficult. Also the + 48 volt supply will be very quiet so no additional ripple reduction is required.

Of course if you are building a mains powered 'T' power microphone supply - then you can certainly play with the regulation!

John Audio
  Reply With Quote


Microphone power supplyHide 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
B&K microphone power supply - help needed TheoM Power Supplies 83 22nd February 2017 02:27 PM
LTspice tool for power amp power supply component evaluation andy_c Software Tools 2 23rd August 2009 06:10 PM
microphone + headphones + battery power truthbetold Parts 2 17th December 2008 12:41 PM
selling high current power supply for power amps. ericpeters Swap Meet 0 14th January 2005 03:21 PM
heater supply (xformer specs are 6.3V 2.5A) as supply for a power LED? jarthel Tubes / Valves 10 21st July 2003 02:30 PM

New To Site? Need Help?

All times are GMT. The time now is 11:17 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio