On 08/08/2012 16:58, James Courtier-Dutton wrote:
On 8 August 2012 07:54, James Courtier-Dutton james.dut...@gmail.com wrote:
I seem to have been misunderstood here.
I think we both misunderstood Vic, who has a laptop PSU capable of both
12V and 240V input (probably also 90V...265V).
I've
Vic ... could you post a link?
This is the one I use :-
http://www.ebay.co.uk/itm/LCD-90W-Universal-Laptop-AC-DC-Adapter-For-Toshiba-Lenovo-Sony-Fujitsu-Series-/110924773646?pt=UK_Computing_LaptopAccessories_PowerSupplieshash=item19d3a1b90e
Vic.
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The 12v laptop power is also more efficient. Fewer power conversion steps.
No, that's not true.
All these PSUs are switch-mode; their efficiency is dictated by the design
and the selection of components.
Even linear regulators are no longer that fussed about the overall drop
across them - as
On 08/08/2012 07:27, Vic wrote:
The 12v laptop power is also more efficient. Fewer power conversion steps.
No, that's not true.
All these PSUs are switch-mode; their efficiency is dictated by the design
and the selection of components.
It is true.
If you use a 240V intermediate stage, you
It is true.
It isn't.
If you use a 240V intermediate stage
So you don't use a 240V intermediate stage.
You have a single conversion from Vin to Vout. That only gets complicated
if you haev to cope with variable conditions, such that you can't say for
all situations whether Vin Vout or Vin
On Tue, 07 Aug 2012 22:30:37 +0100
Sean Gibbins s...@funkygibbins.me.uk wrote:
On 07/08/12 21:51, Samuel Penn wrote:
And then there's this:
http://www.biolitestove.com/campstove/camp-overview/features/
That looks interesting!
But a bit chunky for backpacking/wilderness camping. My
On 08/08/2012 09:23, Vic wrote:
snip
So you don't use a 240V intermediate stage. You have a single
conversion from Vin to Vout. That only gets complicated if you haev to
cope with variable conditions, such that you can't say for all
situations whether Vin Vout or Vin Vout; that might involve
On 08/08/12 12:24, Gordon Scott wrote:
On 08/08/2012 09:23, Vic wrote:
snip
So you don't use a 240V intermediate stage. You have a single
conversion from Vin to Vout. That only gets complicated if you haev to
cope with variable conditions, such that you can't say for all
situations whether
On 08/08/12 11:00, john lewis wrote:
But a bit chunky for backpacking/wilderness camping. My petrol fueled
stove is a quarter the size, but it did mean having to carry a sigg
fuel bottle as well. Finding somewhere to purchase small quantities of
unleaded fuel gave us problems when backpacking in
On 08/08/2012 11:04, Vic wrote:
The original url showed a 12V to 240V converter.
The conversation had moved to a PSU that has dual 240VAC or 12VDC inputs.
The claim was that the 12V input is more efficient. It is not.
Oh I see.
I'd read through the mails a couple of times, but had failed to
Hi,
Sean Gibbins s...@funkygibbins.me.uk wrote:
Any thoughts on this or other similar devices?
For me, it's the loss of the mobile devices that have the greatest impact on my
day (My phone does a credible job at web browsing and email so I can generally
wait until I can find Mains to
On 07/08/12 21:05, c...@spamcop.net wrote:
Two things: do check the load your gadgets will put on it - I've seen
laptop PSUs pushing over a 100 watts these days. Also, powering it
with cigarette lighter plug, usually you can't get the full wattage.
For the full wattage, you have to use the
Quoting Sean Gibbins s...@funkygibbins.me.uk:
On 07/08/12 21:05, c...@spamcop.net wrote:
Hi Chris,
I actually want it for charging stuff while we are on the move, notably
my Toshiba NB200 netbook and my girls' iPods.
Is it suitable for this or am I looking at the wrong product?
That should
On 07/08/12 21:19, c...@spamcop.net wrote:
That should be fine. I prefer one of those, than having dedicated car
chargers for every gadget.
Actually, are you anywhere near Andover? If it's only for a couple of
weeks' holiday, and you're nearby, you can borrow mine - although, as
I said, it
Quoting Sean Gibbins s...@funkygibbins.me.uk:
Cheers Chris, that's very kind, but as you imply the USB charger was a
selling point for me, plus we're a fair way from Andover!
No worries.
I'll give this one a go and let you know how I get on.
Good luck with it.
Chris
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