#11164 NORM 1.75-ha: Darfon power supply tripped?

[Zarro Boogs per Child]

#11164: Darfon power supply tripped?
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           Reporter:  tonyforster  |       Owner:  wad          
               Type:  defect       |      Status:  new          
           Priority:  normal       |   Milestone:  1.75-hardware
          Component:  hardware     |     Version:  not specified
         Resolution:               |    Keywords:               
        Next_action:  reproduce    |    Verified:  0            
Deployment_affected:               |   Blockedby:               
           Blocking:               |  
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Comment(by rsmith):

 Replying to [comment:6 Quozl]:

 > I don't think that Vin value from .mppt is a concern, but I'll leave
 that to Richard.

 The value in .mmpt and watch-mppt is in AD counts.  I've not done a
 detailed scale yet but 21000 is in the 14V range.  Which is normal for
 that adapter if unloaded.

 > Please, don't make a habit of using the XO-1 charger with XO-1.75.  It
 doesn't meet the requirements.

 Its actually fine.  My goal for 1.5 was to make is safe for XO-1 power
 supplies. The input power is restricted so that older adapters will work.

 I'd like to explore this more.  Right now the input power for the 1.75 is
 capped at 17W which is much lower than then 24W the Darfon adapters are
 rated at.  So it should never trip.

 I can simulate 240V but I'm at 60Hz rather than 50Hz.  Please try and see
 if you can repeat.  When it happens follow james instructions and see what
 voltage value you get from .mppt

 I've tested these on 240V on my test bed but I'll grab a bunch more and do
 more testing here to see if I can duplicate.

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Ticket URL: <http://dev.laptop.org/ticket/11164#comment:8>
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