Mr. Boström (Anaview), Sweden has designed a very neat class D module, don't think.
Specifications
http://www.a-bricks.com/wp-content/uploads/2016/02/SPC-ASB101_1-pa1.pdf
Specifications
http://www.a-bricks.com/wp-content/uploads/2016/02/SPC-ASB101_1-pa1.pdf
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That is a very high power density for how small that amp is at 50mm x 30mm. It is bigger than the photo in the PDF makes it look - by far that is the biggest inductor on the smallest amp. Looks like a self oscillation type circuit similar to IRS2092 except with feedback after the inductor. I wonder what honey sell for?
From CES booth - you can see once integrated into a motherboard with requisite filtering, dual rail supply, logic etc, the size is not any smaller than an equivalent 400w stereo LJM IRS2092.
From CES booth - you can see once integrated into a motherboard with requisite filtering, dual rail supply, logic etc, the size is not any smaller than an equivalent 400w stereo LJM IRS2092.
An externally hosted image should be here but it was not working when we last tested it.
Would be interesting how they achieve 3mR output impedance from using two Infineon BSC360N15NS3 G FETs.
Seems to require five supply rails as well which I guess more or less demands a dedicated SMPS?
/U.
/U.
The supply rails does make implementation a bit complicated. Would love to play with one anyway! Wonder how much they will sell for.
That's not that small if you look at what a +/-44v rail class AB can look like (built by member borys):
http://www.diyaudio.com/forums/solid-state/96192-post-your-solid-state-pics-here-458.html
P=44v^2/4ohms=484w
http://www.diyaudio.com/forums/solid-state/96192-post-your-solid-state-pics-here-458.html
P=44v^2/4ohms=484w
I think you have to divide by TWICE the load impedance (since the relevant voltage is RMS, not the peak value --> RMS^2 = 0.5xPEAK^2, and peak is limited or at best defined by the power supply rail).
So --- 242W.
So --- 242W.
something wrong with these? dont see much interest anywhere...or hard to come by?
i also remember icepower beeing a big deal like ten years ago, now it seems noone cares about them and its hypex all the way.
hmm
i also remember icepower beeing a big deal like ten years ago, now it seems noone cares about them and its hypex all the way.
hmm
A-Bricks or Audio-Bricks are now Ice-Bricks.
After a couple of years of "please enquire" they are now listed as available from profusionplc.com
ENGINE-400 Amplifier
AUX-PLANT DC-DC converter to generate the various voltages required and
MOTHERBOARD-1 If you don't want to design your own peripheral circuitry.
And you still need to provide a DC supply.
After a couple of years of "please enquire" they are now listed as available from profusionplc.com
ENGINE-400 Amplifier
AUX-PLANT DC-DC converter to generate the various voltages required and
MOTHERBOARD-1 If you don't want to design your own peripheral circuitry.
And you still need to provide a DC supply.
Here is the datesheet of this little guy: https://www.profusionplc.com/images/data-sheets/icebricks_engine400_1_2-1.pdf
Here are the prices: ENGINE-400 - Compact Class D Amplifier
Here are the prices: ENGINE-400 - Compact Class D Amplifier
Do you have any information about performance? Is it near the ICE-brick?That's not that small if you look at what a +/-44v rail class AB can look like (built by member borys):
Post your Solid State pics here.
P=44v^2/4ohms=484w
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