diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Class D (http://www.diyaudio.com/forums/class-d/)
-   -   UcD like topology amp. (http://www.diyaudio.com/forums/class-d/116590-ucd-like-topology-amp.html)

Bender.ru 1st February 2008 07:12 AM

UcD like topology amp.
 
2 Attachment(s)
Here is my first selfoscillated (UcD like) amp.
Later i'm gonna gonna post schematic & pcb layout with measurements result.

Driver: IRS20955
Mosfet: IRFI4212H-117P

Bender.ru 1st February 2008 07:15 AM

2 Attachment(s)
Totem pole (20V/div*500nS/div) :

Bender.ru 1st February 2008 07:19 AM

2 Attachment(s)
LC out at idle (1V/div*500nS/div) :

Bender.ru 1st February 2008 07:22 AM

2 Attachment(s)
Clip, load 6.5 Ohm resistor (20V/div*200uS) :

Bender.ru 1st February 2008 07:25 AM

2 Attachment(s)
20kHz sine, load 6.5 Ohm resistor (10V/div*10uS/div) :
ps: signal asymmetry produced by low quality test generator.

phase_accurate 1st February 2008 07:35 AM

Very nice indeed.

Regards

Charles

Eva 1st February 2008 07:40 AM

Hey, where is the RF ringing? I don't see any :D:D:D

Good job, indeed :cool:

Bender.ru 1st February 2008 07:50 AM

Hi Charles, thanks for reply.

Hi Eva, i think that my relativaly low scope eat ringing :), but it perfectly show terrible RF ringing of my early stuff :D .

acid_k2 1st February 2008 12:10 PM

Nice work, Bender.ru!
I like that.

Sure that you are not measuring a class A amp? :D or you are using a very esoteric filter.... :D

MaxS 2nd February 2008 03:26 PM

Hello Bender.ru and all,

Nice project.
What are voltage supply, something like +/- 45 V?

What is the approximate power ?
Maybe around 60 W and 260 W / 6R

Is it possible to get a copy of entire project ?

Thanks you !


All times are GMT. The time now is 08:07 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