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  • Mei-MeiC commented on Mei-MeiC's instructable High-Range Wireless Power 2 months ago
    High-Range Wireless Power

    Hello there! The coupling coeficient k doesn't effect the value of the inductor & capacitor (at least to first order). The value "k" gets smaller as the coils get farther apart. If you want to know the equation for the inductor and capacitor, you can read about it on this website:https://www.allaboutcircuits.com/textbook/alternat...You can always tune the values for different resonant frequencies.

    Hello there! The coupling coeficient k doesn't effect the value of the inductor & capacitor (at least to first order). The value "k" gets smaller as the coils get farther apart. If you want to know the equation for the inductor and capacitor, you can read about it on this website:https://www.allaboutcircuits.com/textbook/alternat...You can always tune the values for different resonant frequencies.

    Hello there! The coupling coeficient k doesn't effect the value of the inductor & capacitor (at least to first order). The value "k" gets smaller as the coils get farther apart. If you want to know the equation for the inductor and capacitor, you can read about it on this website:https://www.allaboutcircuits.com/textbook/alternat...You can always tune the values for different resonant frequencies.

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  • Mei-MeiC commented on Mei-MeiC's instructable High-Range Wireless Power 1 year ago
    High-Range Wireless Power

    Don't worry, we've already started a Makerspace! :)

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  • Mei-MeiC commented on Mei-MeiC's instructable High-Range Wireless Power 1 year ago
    High-Range Wireless Power

    The magnetic fields generated by this are actually pretty low, since they are spread out over a large area. So any one cell in your body wouldn't see only a small magnetic field.

    Sure, that would work! You could also use an LM555 oscillator. But it would need to be adjustable since you need to tune it to find the ideal frequency.

    Great! Let us know how it works!

    Sounds like an interesting project! We don't have access to a VNA. But these coils wouldn't work well at 100Mhz, party due to skin effect, but mostly due to capacitive coupling.

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  • Mei-MeiC followed Mei-MeiC1 year ago
  • Mei-MeiC commented on Mei-MeiC's instructable High-Range Wireless Power 1 year ago
    High-Range Wireless Power

    Good point, we fixed that, should have been cm, not mm!!

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