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Old 1st February 2008, 07:12 AM   #1
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Default UcD like topology amp.

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
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Old 1st February 2008, 07:15 AM   #2
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Totem pole (20V/div*500nS/div) :
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Old 1st February 2008, 07:19 AM   #3
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LC out at idle (1V/div*500nS/div) :
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Old 1st February 2008, 07:22 AM   #4
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Clip, load 6.5 Ohm resistor (20V/div*200uS) :
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Old 1st February 2008, 07:25 AM   #5
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20kHz sine, load 6.5 Ohm resistor (10V/div*10uS/div) :
ps: signal asymmetry produced by low quality test generator.
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Old 1st February 2008, 07:35 AM   #6
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Very nice indeed.

Regards

Charles
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Old 1st February 2008, 07:40 AM   #7
Eva is offline Eva  Spain
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Hey, where is the RF ringing? I don't see any

Good job, indeed
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Old 1st February 2008, 07:50 AM   #8
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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 .
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Old 1st February 2008, 12:10 PM   #9
acid_k2 is offline acid_k2  Italy
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Nice work, Bender.ru!
I like that.

Sure that you are not measuring a class A amp? or you are using a very esoteric filter....
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Old 2nd February 2008, 03:26 PM   #10
MaxS is offline MaxS  France
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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 !
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