Questions tagged [inductive-charging]

The UK is about to start trials of wireless charging for moving cars. What kind of power transfer efficiency is likely to be achievable in such a system, compared to just plugging in the car directly?

I've been working on a project that requires some wireless charging, at about a 10mm gap. I've found some inductive charging coils on the Adafruit website (part number 1407), but I, unfortunately, don't quite understand how to wire these…

I need to generate a 500 volt electrostatic charge. How can I do this? I don't have a Van de Graaff generator. What are some practical suggestions? Basically I want to do experiment in which I need to induce charges on a plate ie one side positive…

Could someone please explain why, when there is no secondary load, the applied voltage of the primary roughly equals the back EMF of the primary? Since the primary coil is an inductor I wondered exactly how the back EMF is always there and always…