Systems and methods for regulating inductive energy transfer to an implantable system
First Claim
Patent Images
1. An implantable device configured to be inductively charged or powered by an external charging system having a resonant frequency, the implantable device comprising:
- an inductive energy transfer circuit having an oscillating circuit and an operating frequency;
a battery coupled to the inductive energy transfer circuit;
an electrical component coupled to the oscillating circuit and configured to create a short circuit when a temperature of the electrical component exceeds a threshold value, the short circuit causing the operating frequency to shift away from the resonant frequency, thereby regulating an amount of energy delivered to the battery by the inductive energy transfer circuit.
4 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods are provided for regulating the transfer of energy inductively between an implantable device and an external charging system, wherein the energy transfer rate is regulated by varying an operating frequency of an inductive energy transfer circuit of the implantable device responsive a temperature measured within the implantable device.
-
Citations
15 Claims
-
1. An implantable device configured to be inductively charged or powered by an external charging system having a resonant frequency, the implantable device comprising:
-
an inductive energy transfer circuit having an oscillating circuit and an operating frequency; a battery coupled to the inductive energy transfer circuit; an electrical component coupled to the oscillating circuit and configured to create a short circuit when a temperature of the electrical component exceeds a threshold value, the short circuit causing the operating frequency to shift away from the resonant frequency, thereby regulating an amount of energy delivered to the battery by the inductive energy transfer circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of regulating energy transfer in an implantable device configured to be inductively charged or powered by an external charging system having a resonant frequency, the method comprising:
-
providing the implantable device comprising an inductive energy transfer circuit having an oscillating circuit, an operating frequency, a battery, and an electrical component coupled to the oscillating circuit, the electrical component configured to create a short circuit when a temperature of the electrical component exceeds a threshold value; creating a short circuit that shifts the operating frequency away from the resonant frequency when the temperature of the electrical component exceeds the threshold value, thereby regulating an amount of energy delivered to the battery by the inductive energy transfer circuit. - View Dependent Claims (11, 12, 13, 14, 15)
-
Specification