Posted on 12/25/2013 4:39:05 PM PST by bkopto
/johnny
I’m with you. However, I suspect its probably not something one might whip up after a quick trip to RadioShack.
=[ ]------->
Nice idea, but my laptop won’t charge from power applied to a USB port. Next generation perhaps.
It's FM. ;)
/johnny
That scheming Bastard.
Hmmm....
AC motored Hybrid Drivetrain Knuckle and use regen-braking back to a storage device with their Circuit?
How will this work with a "Graphene Ultra-Capacitor"?.... Wow a brave new world..
Just in time to miss Christmas! Thanks bkopto.
IF: it runs twice as hot, and only has 1/3 the life expectancy of the older brick types.
THEN: smaller is not so good.
FYI: issues the article does not address
From the description it sounds like a way to build a switching regulator without the typical trade-off in efficiency that comes as you increase the switching frequency. This would allow a big reduction in size due to the smaller passive components that could be used.
Revolutionary discovery of the month. Never to be heard from again.
If they go public, I’m buyin’ some of their stock.
probably using IGBT’s to run that fast. Surprised tht is hasn’t been used before
I’ll bet that passing radiated/conducted emissions was tricky.
/johnny
the unit provides 65 watts enough power for a laptop.
you wouldn’t be able to power the laptop from a USB charge port.
While I could be wrong, I’d think that with 2.1 amps you could power the laptop and have a bit left over for charging the battery. The laptop’s circuits though would need to be designed to allow that much input current through the USB port.
I have designed switching power supplies for a living. I’d like to believe this, but like Johnny, I want to see the schematic. How are they charging/discharging the gate capacitance so quickly? Power FETs or IGBT’s usually have large gate capacitance. I want to see how they eliminate this or get around it. They’d have to if they are going to run the switcher at 300 MHz.
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