My new 150W R2R design! - Page 3

dimitri · 9th August 2005, 05:32 PM

Quote:

at a glance

small signal BJT footprints seems to be wrong

Quote:

my standard twin slope SOAR

but there is no current sensor

Quote:

supply multiple parallel C

different ripple currents through different C

Quote:

like thermal cutout and extra thermistor Tcomp if necessary

thermal cutout -there is no thermal contact of any component with heatsink (without taking thermistor, which is optional, as I got)

Quote:

reverse biasing to remove charge and speed switching

could find any bootstrapping

destroyer X · 9th August 2005, 06:37 PM

If positive, please, send it to me.

nanabrother@yahoo.com

regards,

Carlos

richie00boy · 9th August 2005, 06:54 PM

Quote:

Originally posted by dimitri

small signal BJT footprints seems to be wrong
but there is no current sensor
different ripple currents through different C
thermal cutout -there is no thermal contact of any component with heatsink (without taking thermistor, which is optional, as I got)
could find any bootstrapping

Too much rushing?

Quote:

Originally posted by amplifierguru
You won't like it Mikeks - I left out even my standard twin slope SOAR.

You don't need a bootstrap to achieve (near) rail to rail.

dimitri · 9th August 2005, 09:05 PM

my mistake: instead "could find any bootstrapping" it is necessary to read "couldn't find any bootstrapping"

to richie00boy: this is common source output stage

to brother: no, I haven't, just had a look on PCB

amplifierguru · 10th August 2005, 07:39 AM

Hi Dimitri,

Thanks for resurfacing this thread. You're right in that all is not obvious as I don't want it coming out of Taiwan before I get it up and the IP covered. But at the same time I would like it outed. I just need it to be an earner . It's a hugely simple but elegant design that has some constraints but offers a revelation in simplicity/performance.

I've extended the design to a 300W /8 ohm as you're aware from the mrss thread. It's even better with the cascode.

I'm investigating a kit partner but this is a serious Hi End deal.

Cheers,
Greg

palesha · 10th August 2005, 08:42 AM

U r using the this thread of DIY forum for ur business. Ok, but do it openly like Nelson Pass. He is helping DIY community also.

hienrich · 10th August 2005, 11:04 AM

hi Guru: I think you are old enough to understand what this forum
is all about.

we have respected you for being wise and expert so
pls. stop being a businessman here

show us what you got

chicco_36 · 11th August 2005, 01:46 AM

Congratulations Greg!
Show us some inside story of your newborn child; believe me, we’ll be happy enough to support you until the and of this thread. Basic schematic fill be a good start J

amplifierguru · 11th August 2005, 04:11 AM

Yes thanks all. Points taken. It's evolved and I'm considering a EW&WW publish as well so best let it go back to sleep for now until all bases are covered. Nothing's for sale and I'm in discussions.

As soon as I can. Patience.

Cheers,
Greg

9th August 2005, 06:37 PM	#22
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife-Brasil Northeast	Hi Dimitri!, have you the schematic? If positive, please, send it to me. nanabrother@yahoo.com regards, Carlos __________________ Dx Blame ST - http://www.youtube.com/watch?v=YrT3ZPU8wIo What Dx Voltage Regulator does: http://www.youtube.com/watch?v=5rDSMxwcugI

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9th August 2005, 09:05 PM	#24
dimitri diyAudio Member Join Date: Oct 2002 Location: retired	my mistake: instead "could find any bootstrapping" it is necessary to read "couldn't find any bootstrapping" to richie00boy: this is common source output stage to brother: no, I haven't, just had a look on PCB

10th August 2005, 07:39 AM	#25
amplifierguru Account Disabled Join Date: Aug 2004 Location: Earth	Hi Dimitri, Thanks for resurfacing this thread. You're right in that all is not obvious as I don't want it coming out of Taiwan before I get it up and the IP covered. But at the same time I would like it outed. I just need it to be an earner . It's a hugely simple but elegant design that has some constraints but offers a revelation in simplicity/performance. I've extended the design to a 300W /8 ohm as you're aware from the mrss thread. It's even better with the cascode. I'm investigating a kit partner but this is a serious Hi End deal. Cheers, Greg

10th August 2005, 08:42 AM	#26
palesha diyAudio Member Join Date: Nov 2001 Location: Pune India	U r using the this thread of DIY forum for ur business. Ok, but do it openly like Nelson Pass. He is helping DIY community also.

10th August 2005, 11:04 AM	#27
hienrich diyAudio Member Join Date: Dec 2004 Location: City of Gentle People	hi Guru: I think you are old enough to understand what this forum is all about. we have respected you for being wise and expert so pls. stop being a businessman here show us what you got

11th August 2005, 01:46 AM	#28
chicco_36 diyAudio Member Join Date: Sep 2004 Location: Skopje, Macedonia	Congratulations Greg! Show us some inside story of your newborn child; believe me, we’ll be happy enough to support you until the and of this thread. Basic schematic fill be a good start J

11th August 2005, 04:11 AM	#29
amplifierguru Account Disabled Join Date: Aug 2004 Location: Earth	Yes thanks all. Points taken. It's evolved and I'm considering a EW&WW publish as well so best let it go back to sleep for now until all bases are covered. Nothing's for sale and I'm in discussions. As soon as I can. Patience. Cheers, Greg

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