My new 150W R2R design!

[dimitri]

obscured issues

at a glance

small signal BJT footprints seems to be wrong

my standard twin slope SOAR

but there is no current sensor

supply multiple parallel C

different ripple currents through different C

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)

reverse biasing to remove charge and speed switching

could find any bootstrapping

 

[destroyer X]

Hi Dimitri!, have you the schematic?

If positive, please, send it to me.

nanabrother@yahoo.com

regards,

Carlos

 

[richie00boy]

Re: obscured issues

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? 😉

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]

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]

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]

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]

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]

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]

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 😀