TransferJet: Accelerating Wireless Charging

NO RATINGS
View comments: newest first | oldest first | threaded
Page 1 of 2   Next >   Last >>
_hm
User Rank
Supply Network Guru
Re: Wireless charging
_hm   1/26/2013 8:09:58 PM
NO RATINGS

Thanks for information. I would say it is link efficiency. If wire charger link efficiency is 100%, wireless is 70% or better. This is quite high to my surprise. I would consider it as green. I will employ more wireless charger.

Michell Prunty
User Rank
Blogger
Re: Wireless charging
Michell Prunty   1/26/2013 3:17:05 PM
NO RATINGS

@ _hm

How low do you expect the percentage to be?  Here is a link for Toshiba that mentions their (74%) efficiency: http://www.toshiba.com/taec/news/press_releases/2012/wrls_12_656.jsp

EVWireless is the company that claims a 90% efficiency, though that is for electric vehicle wireless charging. The efficiency rate depends on what the manufacturer uses to replace the copper coils with.

I haven't been able to do an in-person comparison of wired vs wireless, so maybe someone who has can chime in which actual charging times. 

The reason why wireless charging could be considered "green" is that as we add in more coils for more devices, the standby power remains the same vs the scenario where we have 2+ adapters kept constantly plugged in for 2x the standby power consumption. 

pocharle
User Rank
Supply Network Guru
Re: Wireless charging
pocharle   1/26/2013 11:43:40 AM
NO RATINGS

I agree. The health implications are a huge factor.

_hm
User Rank
Supply Network Guru
Re: Wireless charging
_hm   1/26/2013 7:51:34 AM
NO RATINGS

@Prunty: This looks quite misguiding numbers! Please check with manufacturer. For your information, dc/dc converter also has efficiency close to 90%. Please check again efficienct must be much lower.

 

Michell Prunty
User Rank
Blogger
Re: Wireless charging
Michell Prunty   1/25/2013 6:29:27 PM
NO RATINGS

Hi all,

Regarding efficiency, this system can be 75% efficient, though it does depend on which components the manufacturer uses.  Some vendors are claiming up to 90% efficiency.  Considering how young this market is, its kind of remarkable.

Also - these products do work with Qi, the standard for wireless charging developed by the WPC

_hm
User Rank
Supply Network Guru
Re: Wireless charging
_hm   1/24/2013 8:09:23 PM
NO RATINGS

Is it possible to get the efficiency of this wireless charger? Also, health hazard may be hidden and some prominent third party must get it certified.

 

Bolaji Ojo
User Rank
Blogger
Re: Wireless charging
Bolaji Ojo   1/24/2013 9:54:53 AM
NO RATINGS

Remember asbestos? People weren't aware it was really dangerous until years later. However, constant monitoring of people's health might have given us earlier the first hints about the dangers involved.

This is happening today with wireless devices. The industry has trade bodies that have conducted research into this and said it is not harmful but more research is being done by academic bodies and others. Stay alert but so far so good.

mfbertozzi
User Rank
Supply Network Guru
Wireless spectrum
mfbertozzi   1/24/2013 8:27:23 AM
NO RATINGS

@H_H: not so easy a proper answer; in order to share more our opinion about, I can report a recent prediction from Deloitte that focuses on the wireless spectrum crunch...

Hospice_Houngbo
User Rank
Supply Network Guru
Re: Wireless charging
Hospice_Houngbo   1/24/2013 6:55:52 AM
NO RATINGS

@Mr. Roques,

"I'm more worried about cellphones near my head. Which frequencies are more dangerous?"

There is no serious proof to support that assumption. We don't reaally know whether cellphone radiations are harmful or not. But I do agree that we should be aware that a long exposure to radio frequencies over time can have a harmful effect.

Hospice_Houngbo
User Rank
Supply Network Guru
Re: Wireless charging
Hospice_Houngbo   1/24/2013 6:43:25 AM
NO RATINGS

@_hm,

"Wireless charging is quite inefficient and may not be consider green tech."

It is true that we are far from "cutting the power cable". But we can't deny that there have been some (good) improvements in wireless charging research and transfertJet is just one step closer to implementing wireless charging functionality on mobile devices.

Page 1 of 2   Next >   Last >>


More Blogs from Semico Spin
Wireless communications is transforming gaming -- and silicon demand -- with the rise of the addictive Skylanders franchise.
CES showed many interesting devices and applications using sensors and MEMS. But this is just the beginning; more innovation will occur.
A new sensor tracker module for games from PNI Sensor is a must-have whenever it finally hits the market in a gaming device.
High-definition MEMS microphones from firms like Akustica are set to spread rapidly as smartphone makers gobble them up, says Semico.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EBN Dialogue / LIVE CHAT
EBN Dialogue enables you to participate in live chats with notable leaders and luminaries. Open to the entire EBN community of electronics supply chain experts, these conversations see ideas shared, comments made, and questions asked and answered in real time. Listed below are upcoming and archived chats. Stay tuned and join in!
Upcoming Dialogues
REMIND ME
Live Chat 10/30: Top 10 Metrics That Enhance Procurement Performance
We'll be talking about the 10 most important procurement performance metrics, from the old standards to new and emerging best-practices.
10/30/2014
Remind Me
Live Chat 11/05: Enterprise Risks, Intellectual Property & Supply Chains
Enterprise risk management (ERM) frameworks can be useful to identify, assess, and manage intellectual property (IP) risks that arise in supply chain compliance. We'll look at real-world examples and strategies for mitigating those risks.
11/5/2014
Remind Me
Archived Dialogues
Live Chat 10/16: Applying a Macroeconomic Lens to the Supply Chain
EBN blogger Apek Mulay will be our guest as we talk about how macroeconomic reforms have the potential to impact the supply chain.
Live Chat 9/25: Minimizing Risk in the Global Supply Chain
Dave Bowen, CEO of e-sourcing firm MarketMaker4, will be our guest as we explore ways to minimize and manage geo-political and corporate risk in supply chain and sourcing through the use of technology.
Latest Poll
EBN Newswire
COLUMBUS, OH AND PHOENIX   10/20/2014
Avnet Opens CenterPoint Value-Added Services Center in ...
PETALING JAYA, MALAYSIA   10/20/2014
Avnet Appointed as a Cisco IT Distributor in Malaysia
POINTE CLAIRE, QC, CANADA   10/20/2014
Future Electronics Promotes Harvatek’s UV LEDs Series
Twitter Feed
EBN Online Twitter Feed