IR CLass-D solution - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 31st July 2008, 11:27 AM   #1
ponymxy is offline ponymxy  China
diyAudio Member
 
Join Date: Apr 2004
Location: Shenzhen
Exclamation IR CLass-D solution

I'm designing 2*150W and 2*250W Class-D with IR solution based on IRS20955, we design the Class-D schematic and PCB according to IRAUDAMP4 reference design and have completed the primary version PCB and are debugging the PCB. during the course of debugging, I happen to the following problem:
1) if the mosfet is irf4019B and all parameters is same to the attachment, the CSD of the IRS20955 is always charging and discharging and there is no PWM output, that is to say, altrough i have no load, the IC is always OCP.
Please give you advice how to solve the problem.

2) if I want use mosfet FDP3682, how i set the relevent parameters about IRS20955 and can make the class-d work.

Hope to your reply as soon as possible.

Thanks a lot!

The attachment is the schemetic.
Attached Files
File Type: pdf part3.pdf (55.5 KB, 219 views)
  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
I want an solution amp. tadiam Solid State 4 8th April 2008 12:27 PM
PC DAC solution merlinx76 Digital Source 0 12th February 2008 12:11 AM
What if there was a one-box solution? ptwining Digital Source 1 27th December 2006 10:18 PM
Best Solution ?? cybtech Multi-Way 5 6th July 2004 10:26 AM


New To Site? Need Help?

All times are GMT. The time now is 01:29 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