Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 4   >   >>
peralta_mike
User Rank
Rookie
re: London Calling: Forget wireless charging
peralta_mike   3/5/2013 8:22:13 PM
NO RATINGS
Everyone. Quit being so negative. All things are possible.

peralta_mike
User Rank
Rookie
re: London Calling: Forget wireless charging
peralta_mike   3/5/2013 8:20:55 PM
NO RATINGS
In fact wireless charging of electric cars will also happen. (They have buses like this at bus stops now - for a developmental version of these buses.) And the charging coils will be in the streets - this will save tons of weight as only minimal battery capacity will be needed. (An emergency small gas generator can be added to the car in case street coils are broken or not there in places.)

peralta_mike
User Rank
Rookie
re: London Calling: Forget wireless charging
peralta_mike   3/5/2013 8:17:38 PM
NO RATINGS
If done right wireless can be made efficient. Wireless charging is going to happen everywhere. It's just a matter of time. Best we do it efficiently.

krisi
User Rank
CEO
re: London Calling: Forget wireless charging
krisi   3/5/2013 4:41:58 PM
NO RATINGS
That is partially true Denis but only in cold places and only at cold times. I live in Canada (cold place by any standard) and use heating only 4 months. On top of that natural gas heating is 3x less expensive than electrical here. So I have no plans to use wireless charging while charging my iPhones to heat my house in the process anytime soon ;-)

anon3860072
User Rank
Rookie
re: London Calling: Forget wireless charging
anon3860072   3/5/2013 3:35:23 PM
NO RATINGS
How above the EM energy emitted from the charging pad, especially inside a car? Can anyone tell me that the EM wave running freely inside the car cabin will not have any negative health effect upon the people inside the car? In particular, some of these people could be infants or babies. If multiple power hogs have to be charged at the same time, the energy of the EM wave running around are substantial. I feel that the wireless charging is like repeating the "no new wires, wireless" which the whole tech world was evangelizing 12 years ago!

Denis.Giri
User Rank
Manager
re: London Calling: Forget wireless charging
Denis.Giri   3/5/2013 8:31:46 AM
NO RATINGS
This power-saving business is a big joke to people who are heated by electric heaters. During winter, when energy is scarce (hydro-electric is off due to water freezing, solar energy is low, and power requirements are high), people who use electricity to heat their homes and unplug their chargers or turn off their lights will only increase the power consumption of their heaters. In the end, you'll want N kW of power to heat up your home at all times, and whether that power comes from your electric-heaters or various plugged-in electronic devices will not change a thing: all energy ends up as heat. And in summer, energy is abondant enough (solar is more efficient, hydroelectric is on, and power demand is low) for you to be able to waste some of it. This power-saving business only applies to people who heat their homes with something else than electricity, and in my country, gaz-based central heating has become more or less illegal in new buildings due to explosion hazard, so all new buildings are electric-heated. My point: as long as we don't look at the full picture, "saving energy" by turning off a light bulb has no meaning.

KRS03
User Rank
Rookie
re: London Calling: Forget wireless charging
KRS03   3/5/2013 1:52:42 AM
NO RATINGS
Well said, iniewski. The world is not here for us to exploit. Life goes on without you. M9 is likely of the XYZ gen., not an insightful bunch.

krisi
User Rank
CEO
re: London Calling: Forget wireless charging
krisi   3/4/2013 9:09:06 PM
NO RATINGS
Sure, energy is here to improve our lives...but we can't afford to ruin the planet in the process as that would eventually ruin our lifes

jmoore852
User Rank
Rookie
re: London Calling: Forget wireless charging
jmoore852   3/4/2013 7:18:54 PM
NO RATINGS
As I look at the morass of charging wires running around my office to various objects, there's no way I'm going to unplug all of them when they are charged up, because the net result will be too many ending up uncharged, reducing battery life and ultimately costing a whole bunch of energy to replace. And, unplugging the chargers when a device is charged means adding a slight hazard (multiply this by hundreds of millions of people and it's not so slight): that of electrical shock and that of fire from disturbing the outlet strip and it's environment. This whole obsession with energy efficiency has reached the level of a religion, with its tenets unquestioned. Energy generation is there to improve our lives, and the piddly energy savings from unplugging wall warts (or not using the less efficient near field chargers) is just not enough to justify the effort except for either the innumerate or the energy obsessed. If the near field charging reduces the clutter (not to mention the fire hazard), I'll use it even if it's 50% efficient.

Traces
User Rank
Rookie
re: London Calling: Forget wireless charging
Traces   3/4/2013 6:45:01 PM
NO RATINGS
Bad logic: wireless chargers consume at least much as wall warts when plugged in, and if their value proposition is that it's easy to just drop your phone on a pad (i.e., the wireless charger is always plugged in), then it's even worse.

<<   <   Page 2 / 4   >   >>


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

Datasheets.com 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
Max Maxfield

Tired Old iPad 2 vs. Shiny New iPad Air 2
Max Maxfield
8 comments
I remember when the first iPad came out deep in the mists of time we used to call 2010. Actually, that's only four years ago, but it seems like a lifetime away -- I mean; can you remember ...

<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
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, ...

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
16 comments
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 ...
10:29
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 ...