Patent attributes
A hearing instrument having an audio signal source for providing for audio signals; an audio signal processing unit for processing said audio signals; a unit to be worn at or in a user's ear or to be implanted in the user's head for stimulating the user's hearing according to the processed audio signals, and a rechargeable power source, in which the rechargeable power source is a wound capacitor comprising a capacitor foil arrangement which has at least a first electrically conducting layer, a second electrically conducting layer and a dielectric layer in-between and which is wound in a manner so as to form an induction coil for generating a current for charging of the capacitor when exposed to an external alternating electromagnetic field generated by a charging device.
