Novel PCB Construction - diyAudio
Go Back   Home > Forums > Design & Build > Construction Tips

Construction Tips Construction techniques and tips

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 6th March 2014, 02:20 PM   #1
diyAudio Member
 
Max Headroom's Avatar
 
Join Date: Jan 2013
Location: West Australia, straight over the road from the beach, natural ambient sounds only.
Default Novel PCB Construction

Today I saw a circuit module of unusual construction.
pcb.gif
The method was similar to the above pic, with a 0.8mm copper base plate, and a paper thin fibreglass smd loaded pcb bonded to the upper surface of the copper base plate.
I have seen similar modules previously, but the novel (to me) feature is that vias were drilled right through the copper base plate, forming circuit ground connections to an effectively infinite system earth.

This module method also allows very effective thermal management.
A Peltier module connected directly to the module, or via a heatpipe, would allow controlled and equal temperature of all module circuit elements/components.

Pre-preamps, preamps and power amp input/driver stages would likely benefit by this technique.

Dan.

Deliberately varying operation temperature of circuits could be the new audio 'tweak'.
  Reply With Quote
Old 6th March 2014, 02:48 PM   #2
marce is offline marce  United Kingdom
diyAudio Member
 
Join Date: Jun 2007
Location: Blackburn, Lancs
Ok for simple circuits, used often for LED based. The trick is to lay out the pre-amp or DAC circuit single sided with only GND on the bottom side, similar to this DAC design I am playing with. This is single sided apart for all signals, the only vias being GND ones (ignore the far end I'm still playing, in fact I have several versions).
You can have more layers but have to use HDI interconnection to get the heat sinking benefit, main use though is simple circuits, sensors etc, and with the Au clad boards LED circuits.

For real thermal control heat pipes are the best, you can get integrated heat pipe assemblies, though theses can get rather expensive for custom ones.

Some cool ideas here:
http://www.bergquistcompany.com/pdfs/LED_496KB.pdf
Attached Files
File Type: pdf ESS_DAC_V1_VANILLA-08.pdf (102.9 KB, 14 views)

Last edited by marce; 6th March 2014 at 03:05 PM.
  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
DIY Fiberglass PCB Strata Construction bcmbob Parts 18 14th August 2013 02:20 AM
Need amplifier construction advice (PCB/Soldering) Rullknufs Construction Tips 24 5th August 2012 11:19 AM
FM -- Antenna and Box/PCB construction xitronics Everything Else 1 7th August 2006 09:16 PM
pcb board construction sriegel Pass Labs 17 15th October 2003 05:47 PM


New To Site? Need Help?

All times are GMT. The time now is 02:08 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