Methods and apparatus for power conversion and data transmission in implantable sensors, stimulators, and actuators
First Claim
1. A wireless power receiving device, comprising:
- a coupler configured to induce an alternating current or voltage in the presence of electromagnetic fields or oscillating sound pressure waves;
a first AC-DC conversion chain configured to rectify the induced alternating current or voltage into a first DC current or voltage in a first energy domain;
a first DC load coupled to the first AC-DC conversion chain;
a second AC-DC conversion chain arranged in parallel with the first AC-DC conversion chain and configured to rectify the induced alternating current or voltage into a second DC current or voltage in a second energy domain; and
a second DC load coupled to the second AC-DC conversion chain;
wherein the first or second AC-DC conversion chain comprises a rectifier stage in parallel with a capacitor and a DC-DC conversion circuit, with a battery connected to an output of the DC-DC conversion circuit.
1 Assignment
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Accused Products
Abstract
Implantable devices and/or sensors can be wirelessly powered by controlling and propagating electromagnetic waves in a patient'"'"'s tissue. Such implantable devices/sensors can be implanted at target locations in a patient, to stimulate areas such as the heart, brain, spinal cord, or muscle tissue, and/or to sense biological, physiological, chemical attributes of the blood, tissue, and other patient parameters. In some embodiments, the implantable devices can include power management schemes that have one or more AC-DC conversion chains arranged and configured to rectify the induced alternating current or voltage into one or more energy domains. Methods of use are also described.
44 Citations
7 Claims
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1. A wireless power receiving device, comprising:
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a coupler configured to induce an alternating current or voltage in the presence of electromagnetic fields or oscillating sound pressure waves; a first AC-DC conversion chain configured to rectify the induced alternating current or voltage into a first DC current or voltage in a first energy domain; a first DC load coupled to the first AC-DC conversion chain; a second AC-DC conversion chain arranged in parallel with the first AC-DC conversion chain and configured to rectify the induced alternating current or voltage into a second DC current or voltage in a second energy domain; and a second DC load coupled to the second AC-DC conversion chain; wherein the first or second AC-DC conversion chain comprises a rectifier stage in parallel with a capacitor and a DC-DC conversion circuit, with a battery connected to an output of the DC-DC conversion circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification