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The uBeam FAQ

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PaulReynolds:

--- Quote from: EEVblog on January 14, 2019, 11:40:34 am ---Note that the left hand transducer array has white marks on the side of each one, likely some sort of production test pass marking.
Doesn't make sense if they are COTS, but if they are the uBeam ones, the large COTS-like plastic package doesn't makes sense either.

--- End quote ---

My guess is that almost everything in the box is COTS and what was used in the demo, and that the proprietary transducers are in the bottom right and were just for "show and tell"

Fungus:

--- Quote from: mikeselectricstuff on January 14, 2019, 05:01:41 pm ---
--- Quote from: Fungus on January 14, 2019, 03:17:39 pm ---How many watts do we reckon the power supply is:

--- End quote ---
About 60, but doubt you can read much into it

--- End quote ---

It's a lot more than my existing phone charger, that's for sure...

StillTrying:

--- Quote from: EEVblog on January 14, 2019, 11:47:28 am ---
--- Quote from: coppice on January 14, 2019, 10:54:02 am ---What is the white thing at the top right?

--- End quote ---

I presume the white frame thingo is part of the vision system.
--- End quote ---

Could it be rows of SMD IR LEDs.

EEVblog:

--- Quote from: mikeselectricstuff on January 14, 2019, 05:01:41 pm ---
--- Quote from: Fungus on January 14, 2019, 03:17:39 pm ---How many watts do we reckon the power supply is:



--- End quote ---
About 60, but doubt you can read much into it

--- End quote ---

Well, you can read that you wouldn't use a 60W-100W+ class open frame PSU if you only needed a couple of watts, otherwise you could have just used a consumer plugpack.

I can't see how they could have used this open frame and clearly mains input PSU as a demo on a trade show though, even the most incompetent engineer would not put that kit together for a demo.

EEVblog:
So what is this "Burst circuit"?
Clearly they got another board made as the photo shows a 2nd board attached to the Burst circuit, and the silkscreen is different on the OHSpark one vs the photo unit.
A guess would be that the "burst circuit" perhaps decodes any data modulation on the ultrasonic, and the board next to it is the energy harvesting circuit?

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