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    Choosing a transformer for energy harvesting

    The ideas is to build a low power sensor device that can be plugged into any phone and use, using the battery on the phone is not an option since it needs to be hacked to get the power, an additional battery will kind of reduce the shelf life of such a product as well as limit the user...
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    Choosing a transformer for energy harvesting

    Hi all, I am trying to build the energy harvesting circuit from the following pdf : https://web.eecs.umich.edu/~prabal/pubs/papers/kuo10hijack.pdf It is a energy harvesting circuit for extracting power from the audio jack of a phone The trouble is that i cant find the part they are using on...
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    Boost converter options for Li-Po to 9V ?

    The TL496 looks really interesting, but is it recommended to use switched capacitor power supplies for audio applications ? ( i am noob in this area)
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    Boost converter options for Li-Po to 9V ?

    Thanks, that seems to be easily available here...
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    Boost converter options for Li-Po to 9V ?

    I am trying to build a headphone amp based on the LM386, nothing fancy, the thing is that i want it to run off a single cell li-po battery. Can anyone suggest a common, cheap boost converter ic that can do so? I am looking through Digikey for the parts, but i just wanted to know whether there...

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