Help me think of a better name for this USB charger thingy...
W9GFO
Posts: 4,010
This will be my next Gadget Gangster widget. Tentatively called the "PowerTrip".
It is a USB charger/power supply "thingy".
It features;
Regulated 5V 1amp output. (that's four times as much current as the Minty Boost)
Input 4.8 to 14 VDC
It uses a shottky diode for reverse polarity protection and very low dropout regulator. It drops only .35 volts under a 90 ma load - important when used with a four cell battery pack.
Two pads at the lower right allow use as a breadboard power supply.
The data lines are accessible via two pads above the LED - could double as a USB breakout board.
Uses either a 2.1mm barrel jack or terminal block for power connection. Would like to have a 12v auto plug/cord/2.1mm plug as an available option.
I thought of "PowerTrip" because it provides a way to charge your iPod/etc. while on a trip. Hard to think of a name to call it that describes what it does.
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
Post Edited (W9GFO) : 1/18/2010 8:46:44 AM GMT
It is a USB charger/power supply "thingy".
It features;
Regulated 5V 1amp output. (that's four times as much current as the Minty Boost)
Input 4.8 to 14 VDC
It uses a shottky diode for reverse polarity protection and very low dropout regulator. It drops only .35 volts under a 90 ma load - important when used with a four cell battery pack.
Two pads at the lower right allow use as a breadboard power supply.
The data lines are accessible via two pads above the LED - could double as a USB breakout board.
Uses either a 2.1mm barrel jack or terminal block for power connection. Would like to have a 12v auto plug/cord/2.1mm plug as an available option.
I thought of "PowerTrip" because it provides a way to charge your iPod/etc. while on a trip. Hard to think of a name to call it that describes what it does.
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
Post Edited (W9GFO) : 1/18/2010 8:46:44 AM GMT
Comments
-Phil
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·"If you build it, they will come."
V.I.S.A? Clever play on the charge card thing - I think I better not use that though!
UPG - don't like the acronym but I do like what it stands for. USB Power on-the-go Gadget is quite appropriate and sounds good too, it's just too long.
Maybe shorten it to PowerGadget USB or USB PowerGadget, perhaps USB on-the-go?
For six months I've been wondering what to call this thing, gotta make a decision soon...
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
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Don't visit my new website...
I don't care what you call it.. I want one.. [noparse]:)[/noparse]
OBC
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PowerTrip sounds good to me. In fact, it's such a good name, I'd do some searching to make sure it hasn't been used already.
Yeah, good idea. Several times I thought that I should google it but kept forgetting. Guess what? There is already something called the PowerTrip V2. *sigh*
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
IMPETUSBOARD
-P.
Post Edited (Phil Pilgrim (PhiPi)) : 1/20/2010 12:13:51 AM GMT
I actually like this name - it's geeky enough and it conveys what it does.
I would at least browse on over to see what it did if I was visiting the site..Some of the other names I would just think "I don't need a [noparse][[/noparse]fancy/clever/name], so I wouldn't even bother clicking the link".
But a "thingy", I just might need one of those....
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=================
The future is in our hands.
Which way to the future?
=================
USBingy???
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Watching the world pass me by, one photon at a time.
emphasizes the quality engineering[noparse]:)[/noparse]
iPutz
Shows a sense of humor... understates the utility.
What I would like you guys to figure out is how to recharge my car battery from an iPod[noparse]:)[/noparse]
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Life may be "too short", but it's the longest thing we ever do.
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
Hrm 14V input with 5V @ 1A output. How big is the heatsink ?
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Life may be "too short", but it's the longest thing we ever do.
Or Dingle.....Like Dongle
(from the line on the Altoids box "The Curiously Strong Mint")
Just had to rain on my parade eh?
Well, not big enough apparently. I had tested it at 13.8V and it did get quite warm but nothing alarming. However, I did not test it at the full 1 amp. So today I made up a 5 ohm resistor network and indeed, it goes into shutdown moments after being hooked up. With a 6 volt input it is fine but at 13.8 or 12 volts it just can't shed the heat.
My milled prototype has about 120 mm^2 of copper that serves as a heatsink, the production version will have about 1,000 mm^2.
Looks like I might have to de-rate it at higher voltages or limit the max voltage to something lower - or spec it as "up to 1 amp".
Rich H
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The Simple Servo Tester, a kit from Gadget Gangster.
Yeah, sorry about that. I notice you mentioned the Minty Boost in your first post, and yes this device will supply more current than it will, but then it generates almost no heat.
At a full load, plugged into a car that is charging nicely ~14.4V your board will dissipate over 9W. I wondered if it would thermally shut itself down or de-solder the regulator first? Sounds like you determined that [noparse]:)[/noparse]
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Life may be "too short", but it's the longest thing we ever do.