Go Back   Home > Forums > >

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

How to use solid state rectification the best way
How to use solid state rectification the best way
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
Old 28th July 2021, 04:23 AM   #71
tvicol is offline tvicol  Europe
diyAudio Member
 
tvicol's Avatar
 
Join Date: Jan 2005
Location: Bucharest
How to use solid state rectification the best way
@trobbins, nattawa did a great job by measuring and comparing in this thread Impression of LT4320 and Ideal-Bridges. They are cool, and quiet too.


Regards,
Tibi
__________________
https://evotronix.eu

Last edited by tvicol; 28th July 2021 at 04:26 AM.
  Reply With Quote
Old 28th July 2021, 04:50 AM   #72
trobbins is offline trobbins  Australia
diyAudio Member
 
trobbins's Avatar
 
Join Date: Feb 2009
Location: Melbourne, Oz
Tibi, I wouldn't say nattawa did 'a great job', and in review the comparison was quite flawed wrt 'noise'.

The scope plots are ambiguous as to what is shown and labelled - it appears that a probe tip was placed 'near' the large 10mF output capacitor, with no indication of where the ground clip was placed, or a photo shown of layout.

And it wasn't an apples-apples comparison, as it seems that the kool-brg has an smt 2.2uF bypass cap across the +/- terminals, which is likely to be the dominant suppressor of the ringing shown from the Sanken diode bridge.

What could have been a better comparison test is to custom place a smt 2u2 cap across the Sanken bridge legs, or remove the 2u2 cap from the kool-brg module. An analog scope may also be limited in identifying an apples-apples comparison, and it may be better to use a probe connected to a known point and use soundcard/spectrum analyser software to see a subtle difference that is down in the noise floor.

PS. there is also a concern with comparing a 50A pn diode bridge to a synch solution when the application is really down at the <<10A device rating region.

Last edited by trobbins; 28th July 2021 at 04:59 AM.
  Reply With Quote
Old 28th July 2021, 02:59 PM   #73
astouffer is offline astouffer  United States
diyAudio Member
 
astouffer's Avatar
 
Join Date: Jun 2004
Location: Pittsburgh, crumbling wasteland
I'd like to see a way for the LT4320 adapted to higher voltages.
  Reply With Quote
Old 28th July 2021, 03:27 PM   #74
tvicol is offline tvicol  Europe
diyAudio Member
 
tvicol's Avatar
 
Join Date: Jan 2005
Location: Bucharest
How to use solid state rectification the best way
LT4320 maximum allowed voltage is mainly limited by his internal regulator. This internal regulator is self-powered by mosfet-bridge. In the same time drain sense voltage are internally connected for each mosfet to internal controller. This make impossible to use an external regulator to increase LT4320 voltage operation.

Regards,
Tibi
__________________
https://evotronix.eu
  Reply to this post

Reply


How to use solid state rectification the best wayHide this!Advertise here!
Thread Tools

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
Solid Solid State Power Amplifier PMA Solid State 265 30th August 2011 08:04 PM
solid state Vs Tube Rectification sandy Tubes / Valves 3 3rd September 2004 04:20 AM
The Solid State Wiki - Your solid state reference guide Jason Solid State 0 25th June 2002 05:26 PM


New To Site? Need Help?

All times are GMT. The time now is 06:27 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki