Charging system for implantable hearing aids and tinnitus maskers
First Claim
1. Charging system for implantable hearing aids and tinnitus maskers, comprising an implantable part with a repeatedly rechargeable battery direct voltage source, a receiving series-resonant circuit serving as a constant current source for the direct voltage source to be charged and a full-wave rectification diode bridge circuit having pairs of diodes, and an external part adapted to be located outside a user'"'"'s body, having a transmitting series-resonant circuit which is inductively couplable with the receiving series-resonant circuit for power transmission from outside the user'"'"'s body to inside the user'"'"'s body, said receiving series-resonant circuit comprising a receiving coil and a capacitor connected in series with each other and with said direct voltage source, said receiving coil and said capacitor being parts of a current charging circuit that is closed by a respective one of said pairs of diodes of the full-wave rectification diode bridge circuit depending on a phase of charging current flowing in said current charging circuit.
4 Assignments
0 Petitions
Accused Products
Abstract
Charging system for implantable hearing aids and tinnitus maskers with a repeatedly rechargeable direct voltage source. The charging system comprises an implantable receiving resonant circuit as the electrical energy source for the direct voltage source to be charged and a transmitting resonant circuit located outside the body that can be inductively coupled with the receiving resonant circuit for power transmission from outside the body to inside the body. Embodiments are provided for transcutaneous and for percutaneous power transmission between the implantable receiving resonant circuit and the external transmitting resonant circuit.
-
Citations
16 Claims
- 1. Charging system for implantable hearing aids and tinnitus maskers, comprising an implantable part with a repeatedly rechargeable battery direct voltage source, a receiving series-resonant circuit serving as a constant current source for the direct voltage source to be charged and a full-wave rectification diode bridge circuit having pairs of diodes, and an external part adapted to be located outside a user'"'"'s body, having a transmitting series-resonant circuit which is inductively couplable with the receiving series-resonant circuit for power transmission from outside the user'"'"'s body to inside the user'"'"'s body, said receiving series-resonant circuit comprising a receiving coil and a capacitor connected in series with each other and with said direct voltage source, said receiving coil and said capacitor being parts of a current charging circuit that is closed by a respective one of said pairs of diodes of the full-wave rectification diode bridge circuit depending on a phase of charging current flowing in said current charging circuit.
Specification