Re: Power supply advice needed
- From: JoeBloe <joebloe@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 28 Sep 2006 03:42:00 -0700
On Thu, 28 Sep 2006 12:32:27 +0200, Ren? <rjz~nospam~@xs4all.nl> Gave
us:
On 28 Sep 2006 02:58:03 -0700, seegoon99@xxxxxxxxx wrote:
Hi to all.
I am going to be designing a psu for one of our products.
It's going to be 220Vac in 13V dc (~15 - 20W) out.Must be
isolated.Reasonable regulation.
It will charge a battery (13.8V) and power a logic board(with its own
post regulator)
Cost is a big issue here. Smaller the better obviously.
I am leaning towards using one of the Topswitch line of switching regs
for the job.
Quick look shows TOP244 as probably being suitable.
Does anyone have any better / cheaper suggestions for tackling this
job.
Cheers
Rob
FWIW, I would make a selection of one of the countless Chinese vendors
of switched-made power wallplug adaptors. It also circumvents CE / UL
etc issues in a convenient way - and pricewise you cannot beat it. The
power requirement you quote is very common.
HiTek Power has plenty of wall mount (or mid cord) DC supplies that
can do that wattage. They also supply supplies as OEM equipment to
many companies. Likely quite cheap, once you get into buying some
numbers from them. One or two may be a bit more expensive. Be sure
to get quotes at different purchase size levels to get an
understanding of your cost of incorporating it into your design.
Also, a wall mounted supply saves you the cost of an entry module as
well as the cord. All you need now is to choose a DC pin style
connector (or not there are hard wired designs too).
http://www.hitekpower.com/walldeskmount.htm#42wsingle
.
- References:
- Power supply advice needed
- From: seegoon99
- Re: Power supply advice needed
- From: René
- Power supply advice needed
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