[ARC5] Manufacturing and expertise, (was Switching DC-DC Power Supplies)

[Leslie Smith]

  Hello All,
  There are two points here.  So - the chip has only Chinese
  identification?

   In the long run, engineering expertise migrates to the geographical
   location where items are made.
  This is because the manufacturing process (and manufacturing
  equipment) always reveals problems in the process or finished product.
  The production line is the only place where the problem can be fixed
  and is often the place where the problem is identified.

  So expertise migrates to the factory (or whatever).

  If a product began in USA (IC chips, for example) there is a strong
  chance it will be lost to the 'host' country - in this example China.
  The cycle may take decades (probably will take decades) - but the end
  result is inevitable.
  I'm not an economist, but I'm not sure that training in economics
  gives insights like this.

  73 de Les Smith
  vk2bcu at operamail.com


On Fri, Oct 16, 2015, at 03:31, J Mcvey via ARC5 wrote:
> Probably true in most cases, but the chip on my converter has four
> Chinese characters but no numbers at all!I was very surprised to see
> that.
>  
> 
> 
>      On Thursday, October 15, 2015 12:14 PM, "mstangelo at comcast.net"
>      <mstangelo at comcast.net> wrote:
>    
> 
>  The Chinese ones are usually based on a typical application of the IC
>  chip manufacturer.
> 
> Find out which IC is used and look at the data an dapplication sheets.
> 
> Mike N2MS
> 
> ----- Original Message -----
> From: Robert Eleazer <releazer at earthlink.net>
> To: arc5 at mailman.qth.net
> Sent: Thu, 15 Oct 2015 13:30:12 -0000 (UTC)
> Subject: [ARC5] Switching DC-DC Power Supplies
> 
> By the way, does anyone have any idea how to get inside some of the 12VDC
> to 125VAC off-the shelf inverters and change the output voltage to
> something a bit lower?
> 
> Wayne
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