On Fri, 02 Jun 2017 17:36:19 -0700, "Paul Hovnanian P.E."
wrote:

Also, just for hacking purposes, has anyone reverse engineered the tip
internals (usually just a couple of resistors that the supply 'reads'
through the cord to set up output parameters). One could conceivably hack
together tips for new devices if one knew how to progam the supply. Voltage
is easy to figure. Overcurrent is a bit trickier.

I couldn't find very much detail:
http://www.nerdipedia.com/tiki-index.php?page=Smart+laptop+charger&structure=inde x
http://www.instructables.com/id/Hacking-your-iGo-Universal-Power-Adapter/
http://www.d-de.com/services/tips/igojuice/

I think this is the original patent:
https://www.google.com/patents/US8092261
Mo
https://www.google.com/search?tbo=p&tbm=pts&hl=en&q=inassignee:%22Igo,+In c.%22

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Jeff Liebermann
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