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Wireless Power - Beyond the Phone
Blog Beyond the phone - ein Plan muss her!
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Engagement
  • Author Author: hlipka
  • Date Created: 13 Mar 2014 10:17 PM Date Created
  • Views 1460 views
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  • Comments 11 comments
  • beyond_the_phone
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Beyond the phone - ein Plan muss her!

hlipka
hlipka
13 Mar 2014

(Note: an english version of this post can be found on my personal blog. Feel free to comment here in english)

Zuerst - vielen Dank dafür dass ich an diesem Contest teilnehmen darf. Nicht nur weil die Preise großartig sind, sondern weil er mir auch die Gelegenheit (und eine Ausrede image für ein interessantes Projekt gibt.

 

Wer ein Kind zu Hause hat, kennt das Problem: die meisten interessanten Spielzeuge haben Batterien, und sie scheinen ständig alle zu sein. Zum Geldsparen kann man ja Akkus verwenden, aber die sind dann eher noch schneller alle. Und das natürlich immer in dann wenn das Kind damit spielen möchte. Bei uns war das erste gerät, bei dem das aufgefallen ist zwar kein Spielzeug, aber fast noch wichtiger: ein Nachtlicht. Um Batterien zu sparen, und um sie insbesondere nicht immer zum Laden raus nehmen zu müssen habe ich als erstes einen LiIon-Akku eingebaut. Und um mir dann auch noch das ständige Laden zu sparen, habe ich ein einfaches Wireless-Charging-Modul eingebaut, welches seit geraumer Zeit treu seinen Dienst verrichtet. Kein Laden mehr, keine Kabel im Bett.

 

Schon damals war die Idee, dass man das ja auch für andere Dinge nützlich wäre. Da gibt es einen Kassettenspieler, ein funk-gesteuertes Auto und diverse andere Spielzeuge, die immer in unpassenden Momenten nicht mehr gehen. Als ich daher diesen Wettbewerb gefunden habe, hatte ich schon ein passendes Objekt im Auge:

image

Während ich also auf das Demo Kit gewartet habe, konnte ich mir Gedanken machen wie das Projekt denn am besten anzugehen wäre. Die Pistenraupe wird mit 8 Mignon-Zellen betrieben, als mit 12V. Das bedeutet zwar, das vermutlich genügend Platz für die gesamte Elektronik vorhanden ist, andererseits liefert der Qi-Empfänger nur 5 V zum Laden. Das erfordert also besondere Massnahmen.

Als erstes werde ich aber ein wenig mit dem Kit experimentieren. Insbesondere interessiert mich, über welche Entfernungen man wieviel Energie übertragen kann. Das wäre dann wohl der nächste Beitrag hier...

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Top Comments

  • hlipka
    hlipka over 11 years ago in reply to sleuz +1
    @Simon: Ich habe ja glücklicherweise schon ein paar Erfahrungen. Am schwierigsten sind vermutlich die Platzprobleme - das beeinflusst die möglichen Lösungen immer ungemein. Momentan sieht es aber so aus…
  • mcb1
    mcb1 over 11 years ago in reply to hlipka

    you are really taking over my planning now

    Sorry it wasn't my intention, and you're right about the charging.

     

    I need to write up mine, as I have a few software challenges to overcome as well during the weeks ahead.

    Cheers Mark

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  • hlipka
    hlipka over 11 years ago in reply to mcb1

    I will keep posting here in German. Since I have a personal blog anyway, I will have an English version there too (and cross-link them). But I guess they will differ always a little bit (given the different contexts).

    If there are english questions, I think I will answer them in English too - this makes the discussion easier I think.

     

    hli

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  • mcb1
    mcb1 over 11 years ago in reply to sleuz

    Simon

    I'm amazed at how the translation can get confused, so maybe its better if you do the bulk thing ... I just thought it polite ... however I could also be telling hendrik that he's wasting his time, or ordering something inedible.

     

    A lot of people (myself included) tend to quickly view postings and titles, rather than read every posting and unless the picture was there I might not have taken the opportunity to translate it at all.

    I confess to knowing no other language (well maybe a little BASIC and some C++ ...enough to cause me trouble).

     

    I think if you wish to reach the largest audience, and post it on a english speaking website, then perhaps having the translation for both means a wider audience may take notice.

    That said Wurth and TI are sponsoring this challenge so maybe Christian can ask that posts be in both English and German (using the translate to post the alternative).

     

     

    Just a thought.

    Mark

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  • sleuz
    sleuz over 11 years ago

    I love the google translations! image

     

    It´s up to you guys to use whatever language suits you. There might be people looking for German instructions, so feel free to keep your posting in German.

     

    We can always sum a few posts together and translate them for overview´s sake.

     

     

    Schönes Wochenende

    Simon

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  • hlipka
    hlipka over 11 years ago in reply to mcb1

    @mcb1: you are really taking over my planning now image Actually I already did thought about that, but just wanted to wait a little bit with posting about it (no need to rush it, there are plenty of weeks waiting for a sign of life...)

     

    The problem with using multiple cells is that they need to be balanced during charging. So I need to think about proper solutions for that (there are multiple ones, each with its own set of pros and cons). So if you wait a little bit, you get a full post about that problem...

     

    btw: You don't need to add the German translation for me, I can do English image I started the post in German because Element14 specifically to do so.

     

    hli

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