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

Group Buys Members group buys

Ideal bridge rectifier GB
Ideal bridge rectifier GB
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 9th November 2019, 04:08 PM   #321
The traveller is offline The traveller
diyAudio Member
 
The traveller's Avatar
 
Join Date: Feb 2010
Quote:
Originally Posted by analog_sa View Post
Thanks to a very observant friend who noticed the frequency of ripple, the mystery shrouding the weird synphase connection has finally been revealed

It is perhaps worth warning any adventurous synphasers that in this mode the 4320 works as a parallel half wave rectifier with the obvious increase in ripple. It may be appropriate for this info to also find a spot within the first post of this thread.

The 50Hz ripple can be seen in both simulation and measurements.


In the standard unipolar connection the 4320 applies out of phase control signals to the opposing fets in the bridge, emulating the behaviour of a standard diode bridge. In the synphase connection this changes and the opposing fets get synphase signals at their gates, effectively working in parallel.

Below is the 50Hz ripple waveform from the synphase simulation. In the standard connection this is of course 100Hz.

On the plus side this is an elegant way to achieve half wave rectification without passing dc through the transformer secondary.
Hi analog_sa
So you are saying that these boards produce a half rectified dc?
Is a full wave rectification possible with the 4320?
  Reply With Quote
Old 9th November 2019, 06:23 PM   #322
analog_sa is offline analog_sa  Europe
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Cascais
Ideal bridge rectifier GB
I am not saying this at all. The standard datasheet connection certainly produces a full rectified output. It is only the centre tapped connection which produces half wave rectified output which is no big deal since factory made centre tapped transformers are incompatible anyway.

The only way possible to obtain a fully rectified bipolar supply is to use a transformer with separate secondaries and separate 4320 boards. In this sense the opening post in this thread is misleading and should be corrected.
  Reply With Quote

Reply


Ideal bridge rectifier GBHide 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
bridge rectifier rock12 Power Supplies 4 15th January 2017 10:06 PM
Bridge rectifier vs Full wave rectifier hilbert_mostert Tubes / Valves 4 28th April 2009 09:26 PM
Integrated Rectifier Bridge VS Rectifier Diodes Sci Chip Amps 11 16th July 2004 03:43 PM


New To Site? Need Help?

All times are GMT. The time now is 01:09 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki