Power supply in a car? - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

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 13th April 2001, 07:25 AM   #1
diyAudio Member
 
Join Date: Apr 2001
I'm trying to build an active crossover to use in my car, but I don't know how to build a power supply. Could anyone point me to a site that could give me more information?
  Reply With Quote
Old 13th April 2001, 12:26 PM   #2
diyAudio Member
 
vdi_nenna's Avatar
 
Join Date: Oct 2000
Location: PA, USA
Blog Entries: 1
Send a message via Yahoo to vdi_nenna
http://www.marchandelec.com/

These guys have crossovers, transistor and tube, power supplies, amp and XO kits, ect.

Might be a good lead for you.
  Reply With Quote
Old 13th April 2001, 01:01 PM   #3
blmn is offline blmn  Brazil
diyAudio Member
 
blmn's Avatar
 
Join Date: Feb 2001
Location: .
Bwee,

If you need a symmetrical power supply you would build a self-oscillating power supply with linear regulators at output. With this topology you will decoupling the battery from the audio stages too.

You can find information about how to do this in the book "switchmode power supply design" - Keith Billings - ISBN 0-07-005330-8. in the part II - chapter 15. It is simple and easy to do (just a little transformer and two transistor plus few components). The linear regulators can be commercial IC's.

Regards



  Reply With Quote
Old 13th April 2001, 01:51 PM   #4
Geoff is offline Geoff  United Kingdom
diyAudio Member
 
Join Date: Apr 2001
Location: UK
A much more simple arrangement would be to use an 'artificial earth'. See Project No. 32 at the ESP Audio Pages (www.sound.au.com) which gives details of an artifical earth arrangement specifically for pre-amps and active filters etc in car installations.

Geoff
  Reply With Quote
Old 14th April 2001, 12:36 AM   #5
blmn is offline blmn  Brazil
diyAudio Member
 
blmn's Avatar
 
Join Date: Feb 2001
Location: .
Bwee,

If you don't need large excursions or currents over few mA the Geoff's indication will work very well.

Regards
  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
Split Voltage Switching Power Supply for Power Amp vectorplane Swap Meet 2 23rd April 2011 11:48 PM
LTspice tool for power amp power supply component evaluation andy_c Software Tools 2 23rd August 2009 05:10 PM
Can i use a computer power supply to power audio amplifiers? destroyer X Solid State 91 25th September 2006 04:36 AM
selling high current power supply for power amps. ericpeters Swap Meet 0 14th January 2005 02:21 PM
heater supply (xformer specs are 6.3V 2.5A) as supply for a power LED? jarthel Tubes / Valves 10 21st July 2003 01:30 PM


New To Site? Need Help?

All times are GMT. The time now is 04:14 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