Design Con 2015
Breaking News
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
User Rank
Will it include Apple Macs too?
_hm   12/21/2013 3:44:05 AM
Apple MacBook has pretty nifty charger. Size, quality and connecteors are quite innovative and user friendly. Does new IEC spec allows to include similar technology? I wish IEC also include industry players for their feedback.


Terry Moore
User Rank
Re: USB Power Delivery
Terry Moore   12/20/2013 5:18:01 PM
Sorry, not clear on your comment: which cart and which horse do you have in mind?

I agree that standard chargers won't happen without a legal mandate. IEC standards do not automatically become EU or China regulations; they have to be adopted by the appropriate political bodies. Even for USB phone charging, that was required. Some manufacturers were doing USB charging before the legal mandate, because it allowed them to ship phones w/o chargers, reducing overall cost (even though it made the phone a bit more expensive). Others (the market leaders) stuck with their proprietary chargers because they had more control, and the ecosystem costs of changing outweighed the benefits of standardization.

Anyway, my comment was more about the potential horse race between specs (to extend your metaphor). Despite the cost issues, Intel has been investing in USB PD, and has been showing Ultrabook demos (through USB-IF, I hasten to add -- I don't know of any product demos). If IEC does not use USB PD as the basis, then there may be some interesting battles as regulators consider which (if any) spec to mandate.

User Rank
Re: USB Power Delivery
anon0050695   12/20/2013 2:59:01 PM
Horse before cart or not?

The 10000m view is that USB PD is based on a progammable power supply, 5V/12V/20V and 1A/3A/5A complicating both power and device. USB Battery Charging was based on a simple standard power supply, makes the phone power design somewhat more tricky but still doable for the power levels needed. 

Big question is if this effort will standardize on for instance 19V/3A and have the PC live with these limitations. Or if they go the USB PD route. In that case both the power supply and the PC will become more expensive and I don't think it will happen unless it is mandated by law.



User Rank
Re: USB Power Delivery
Sheetal.Pandey   12/20/2013 2:22:36 PM
so much agree that these chargers create quite a e-waste. I have a dozen charger lying in my home and ts difficult to know its for which device. For PCs and laptops f there is a single charger the waste can be reduced by quite a big number.

Terry Moore
User Rank
USB Power Delivery
Terry Moore   12/20/2013 1:44:59 PM
The IEC standard for mobile phones is based on USB, specifically the USB Battery Charging standard. A year or so ago, USB-IF introduced USB Power Delivery (USB PD), which allows for up to 100W over USB. A few weeks ago, USB-IF announced the "Type C" connector, which is a more modern slim-line connector for use on PCs and peripherals.  Will the IEC universal charger for notebook computers build on that or replace it? The language in the press release suggests that it will compete with it (emphasis added):
Even though some organizations are discussing and examining the merits of a universal power adapter covering numerous ICT (Information and Communication Technology) devices, due to the technical realities, this is likely still a long way from being achievable.  Therefore, rather than chasing a dream that remains out of reach today, the IEC has leveraged its global technical expertise to bring concrete solutions to the market place.

If this spec is based on USB PD, it's great for USB PD. If not, it both removes an important use case for USB PD, and also may challange one of the justifications for the new Type C connector.

zewde yeraswork
User Rank
Re: wide variety of batteries
zewde yeraswork   12/20/2013 9:02:08 AM
That's definitely a challenge. But they seem serious about the desire to meet it.

User Rank
wide variety of batteries
selinz   12/19/2013 11:16:28 PM
Not sure how they will accomodate the wide spectrum of powers and voltages in a universal spec...

<<   <   Page 2 / 2

Most Recent Comments
Top Comments of the Week
Flash Poll
Like Us on Facebook Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...