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RoadTest Forum How Would You RoadTest This Wireless Power Dev Kit?
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Forum Thread Details
  • Replies 28 replies
  • Subscribers 2761 subscribers
  • Views 4398 views
  • Users 0 members are here
  • scasny
  • wurth electronik
  • rohm
  • dev kit
  • 760308mp
  • wireless power
  • energy_power
Related

How Would You RoadTest This Wireless Power Dev Kit?

rscasny
rscasny over 9 years ago

I'm often contacted my suppliers who are considering to participate in the RoadTest program. They ask me a lot of questions about the program and which products are the best to RoadTest. Well, it depends, right? Test equipment garners a lot of interest. So do SBCs or anything to do with IoT. So when I was contacted about this Wireless Power Dev Kit for a future RoadTest, I looked up what content the community already had on the topic. There is a some content, as expected, since wireless power solutions are only sure to grow. But I don't recall doing a RoadTest on this type of product, or at least recently. I just wondered how it would be RoadTested. So, here's my question: How would your Roadtest it?image

 

Here's a few facts about the product:

  • It's the result of the joint collaboration of Wurth Elektronik and Rohm Semiconductor.
  • It's used in devices with a large number of mating cycles to avoid connector damage such as smartphones, tablets, portable media players.
  • It comes with 5 parts: Transmitter module, Receiver module, LED load module, Quick start guide, Power adapter with EU, US and UK adapter.

 

Here's a few specs:

  • Plug & play wireless power design kit, medium power solution
  • Qi standard version 1.2 compliant with extended power profile
  • Based on the transmitter type MP-A7
  • Excellent performance due to use of litz wire coil
  • Operating temperature range from -20°C up to +105°C
  • Inductance of 12µH at 125KHz/10mA, Q-factor of 33 at 125KHz/10mA
  • Maximum rated current of 3A at ΔT = 40K, saturation current of 6A (typ)

 

More Information

Datasheet

Product Info

 

Here's a few More Photos:

image

 

image

 

image

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  • eye-zen
    eye-zen over 8 years ago in reply to sleuz

    Hi Simon

    Im a roadtester on this project and let me say - awesome kit - the packaging etc is amazing and i will show it in my unboxing etc...

    BUT...

    I live in Australia and although you have interchangeable power plugs for the power supply for just about anywhere4 on the planet - - there is not one for an AU power plug.... no biggie for me with the roadtest - but it might be worth you guys including it in future evolutions of the devkit.

    just my 2c worth...

    Cheers

    Al

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  • DAB
    DAB over 9 years ago in reply to mcb1

    We can always tell when there is a disturbance in the force! image

     

    DAB

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  • mcb1
    mcb1 over 9 years ago in reply to DAB

    Yes, unwatched minions tend to run amok.

    What???  a secret master hiding in the shadows ... image

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  • DAB
    DAB over 9 years ago in reply to sleuz

    Yes, unwatched minions tend to run amok.

     

    DAB

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  • digital404
    digital404 over 9 years ago

    Well that depends on what its for and how it works I would set it up to do more then what it does to bring out the most output there is if no one understands what I am trying to say is that why not add more to it then what it does make it really more interesting

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  • sleuz
    sleuz over 9 years ago in reply to mcb1

    Mark

     

    Always around and having an eye on what you guys are doing! ;D

     

    Simon

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  • mcb1
    mcb1 over 9 years ago in reply to sleuz

    Looking forward to your ideas and the road test.

    Nice to see you are still lurking here sleuz

     

    The last Challenge was a great introduction and showed where the technology is heading.

     

    Mark

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  • sleuz
    sleuz over 9 years ago

    Hi everyone

     

    Great to see there are new people as well as familiar faces engaged in this road test already.

     

    Our new WPC medium power kit is out for a few months now and it´s just getting more and more interesting in terms of the variety of applications.

     

    If you guys are interested in some basic coil alignment, check out our app note on element14.

    ANP014: Wireless Energy Transmission Coils as Key Components

    Further more this might relate to some of you as well.

    ANP016: Going Wireless with Magnetic Shielding

     

    Looking forward to your ideas and the road test.

     

     

    Regards

    Simon

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  • hlipka
    hlipka over 9 years ago in reply to mcb1

    Yeah, it was me doing all these comparisons. When you design something to be used by kids you cannot expect totally exact handling, that why it was important to me.

    I also did something similar with usage detection - I added a current measurement to detect when charging the RC car was finished (because then the input current was dropping, and I could signal end-of-charge).

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  • mcb1
    mcb1 over 9 years ago in reply to hlipka

    Not withstanding the desire to test this one, I thought someone did the distance v energy comparisons.

    It was quite interesting that the horizontal alignment was equally important and the inital handshaking was the crucial part of the misalignment distance.

     

    One thing to bear in mind with this kit was the external signal from the charger.

    I used it to detect if the device was removed and signal to the server it was 'offline' and may not receive updates.

     

    The discussions we had with Wurth before the Beyond the Phone challenge started was very rewarding.

    I helped a school project that was looking at technology to assit the elderly, and lead me to suggest using the technology to charge their devices.

    I find it hard enough to sort out which way up the micro usb goes, and they are rather fragile, so anything that eliminates that problem is a blessing.

     

     

    Mark

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