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

Class D Switching Power Amplifiers and Power D/A conversion

Zero Voltage Switching for Class D amps
Zero Voltage Switching for Class D amps
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 6th April 2005, 07:42 PM   #1
hdoggz is offline hdoggz  United States
diyAudio Member
Join Date: Jan 2005
Location: VA, USA
Default Zero Voltage Switching for Class D amps

I'm just curious: has anyone ever built a Zero-Voltage-Switching Class D amp? It seems like it should be possible.

the idea behind ZVS is that the voltage across switch(FET, for example) Vds is zero for the duration of the time that it takes for the switch to turn on and off. since this is where most of the power loss occurs, you have a switching amplifier thats practically 100% efficient.

I think the downside is increased cost and complexity. you have to use a couple of extra passive components (caps, diodes). Also, the transfer function probably gets all messed up so feedback loops might be harder to incorporate
  Reply With Quote
Old 6th April 2005, 08:30 PM   #2
Jaka Racman is offline Jaka Racman  Slovenia
diyAudio Member
Join Date: Dec 2002
Location: Slovenia

It has been done. It is even not so complicated as you think. Link.

Best regards,

Jaka Racman
  Reply With Quote


Zero Voltage Switching for Class D ampsHide 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
Switching voltage converter for HV supply engels Tubes / Valves 7 11th January 2008 04:37 PM
New class A biasing (with non-switching class AB overflow) Steven Solid State 34 24th March 2007 06:40 PM
switching class d amp steven344 Class D 10 20th November 2005 03:22 AM
Safe Working voltage of output Transistors in class AB amps with +/- supply rajeev luthra Solid State 3 31st July 2004 06:58 AM
Switching on and off a Voltage Inverter punchpeanut Parts 1 18th December 2003 10:34 AM

New To Site? Need Help?

All times are GMT. The time now is 12:40 PM.

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