Well put Jacek Debowski! (Technical Insights Research Analyst for Frost & Sullivan).
Finally someone gets what it will take for wireless power to go mainstream in consumer applications. In an extract from the latest Frost & Sullivan report Debowski notes: “Companies have already started offering wireless charging systems with consumer electronics. However, it can become a standard feature in smartphones or laptops only when it offers higher efficiency and power, electromagnetic interference compliance and flexibility in the positioning of the charged device.” See the original article here.
We have been saying this since we were founded in 2007. Lets discuss Jacek’s points one by one.
At PowerbyProxi we have focused on providing:
- The highest efficiencies (as of last week these were officially proven to be the highest of any system available today – even higher than all tightly coupled systems currently available on the market).
- High power so that you can cater for all your electronic devices, not just your smartphone. We work from mW to kW.
- Electromagnetic interference compliance – we are the only loosely coupled system that can meet EMC requirements. At the CEA WG4 on Wireless Power Standards (in our view the only truly independent standards organization) we remain the only company to have submitted independent test results (or any results for that matter). Qualcomm and others still refuse to share their results!
- Flexibility in the positioning of the charged device – take a look at our In-Device wirelessly rechargeable battery solution and Integrated charging solution for smartphones and tablets, offering the ultimate in spatial freedom. Check out our future of wireless power video also so you can see why this is so important for our vision of what wireless power will become in everyday life.
In my opinion there are a few things missing from Jacek Debowski’s comment quoted above, but I was impressed to see electromagnetic interference compliance on his list. So few comment on this important topic which puzzles me, especially when so few flexible positioning technology platforms can actually meet it!
What did I think was missing? The other key things that are critical for widespread adoption of wireless power in consumer electronics are:
- Charging speeds. They must be as fast as wired chargers (many wireless power systems take hours longer).
- The receiver must be tiny for integration. Very few wireless power systems can fit inside a standard smartphone without a sleeve or cosmetic modification. Check out our Integrated solution for smartphones and tablets for one that does this without any modification to the existing device. Please send me an email (email@example.com) if you would like to see details on how we do this.
- It’s got to run cool! For OEM’s to integrate wireless power receivers into their handsets, thermal performance is key. Very few wireless power systems operate at a temperature that OEM’s would integrate onto the main board of their devices – and don’t forget this has to be tested whilst the device is running at peak demand (for example with WiFi on and YouTube HD video streaming).
- FOD or Foreign Object Detection. Whatever technologies the companies behind them claim they operate with (e.g. magnetic resonance or inductive power – see my other blog post on this topic) everyone uses time varying magnetic fields. Where you have magnetic fields you have the potential to heat foreign metal like keys and coins inadvertently placed on or in the charger. Reliable FOD is paramount and we do it without any in-band or out-band communication. This is important for reliability, safety and performance – not to mention cost.
Some say we are the only ‘real’ wireless power company as a result 😉