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Comments on agenda items



All,

 

As the teleconference yesterday and today is starting at 1am in my part of the world, I shall not be taking part.

 

My summary comments on the points under agenda item VI are:

 

VI. Start to review the overall goals of the group. Solicit new input.

a. Life expectancy of 10 years, hopefully more  Yes - support.

b. Same connector for All device and adapter connections if detached cable  Yes- support.

c. Power range >10W – 130W delivered power to device and is brand, model, and year agnostic  Yes- support.  What about defining the voltage output range as well? 

d. First adapter must work with last device and last adapter with first device. Standard Compatibility. This is a good goal to have in mind, but I would not insist on it if it meant that future requirements could not be accommodated. 

e. Adapter<->Mobile Device communications required for higher power safety >7W.    Yes- support. 

f. Standard designed to support Certification testing of adapter and device (and cable)  Ye- support.

g. Continuous communications growth to support growth of UPAMD capability.  Yes- support.

h. Basic power delivery mechanism

i. Must support regular non-battery and battery powered devices  Yes- support.

i. Device may be capable of being a source as well as a sink of power

i. To supply power other devices beyond the USB 10W power range  Yes- support.

ii. Able to share power for mission critical or business critical applications if willing  Yes- support.

j. Make independent of rapidly changing technology

i. Multiple battery technologies currently used – no common adapter or battery voltage  Yes.  The Adapter<->Mobile Device communications should enable this to be done.

ii. Consider isolation to meet medical power needs It would be good to consider this, but I would not be concerned if it was not in the standard if it was made clear that power supplies for medical use might have additional requirements to those defined in the standard.  This is effectively a safety requirement in my view and should be covered already by other standards like IEC 61204.

k. Consider future mobile device design options

i. Smaller profiles, headed for 10mm to 5mm? Different shape devices, non-edge usage  Yes- support.

l. Connector must not mate with any current designs – product Safety issue – no confusion  Yes- support.

m. Apply KISS principle – Keep It Simple Stupid within the other goals.  Yes - support.

n. Environmentally friendly to eventual disposal Not in favour to be included in this standard.  This is covered by existing and emerging legislation around the world and I do not believe a specific standard for power supplies is the place to define those aspects which will influence eventual disposal.

 

Enjoy the rest of the meeting.

 

Best Regards

 

Stephen

 

Stephen Colclough

Senior Manager

Samsung Electronics QA Lab

Blackbushe Business Park

Yateley

Hampshire GU46 6GG

Tel: +44 (0)1252 863820

Fax: +44 (0)1252 863814

 

email s.colclough@xxxxxxxxxxx

 

Samsung Electronics (UK) Limited

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