Energy harvesting device
First Claim
1. A device for harvesting energy from a power line carrying AC current comprising:
- a transformer having a core with separate first and second sections, with the core being formed of ceramic or metal alloy material having a relative magnetic permeability of at least about 30,000;
a first secondary winding wound around the first section of the core;
a second secondary winding wound around the second section of the core;
a first DC core-flux control winding wound around the first section of the core; and
a second DC core-flux control winding wound around the second section of the core;
wherein the core is configured to be in operative communication with a magnetic field radiated from the power line, such that an AC voltage is generated in the first and second secondary windings, and the maximum AC voltage produced by the first and second secondary windings is limited by the first and second DC core-flux control windings.
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Accused Products
Abstract
A device for harvesting energy from a power line carrying AC current including: a transformer having a core with separate first and second sections, the core being formed of ceramic material or layered nickel alloy tape; a first secondary winding wound around the first section of the core; a second secondary winding wound around the second section of the core; a first DC core-flux control winding wound around the first section of the core; and a second DC core-flux control winding wound around the second section of the core; wherein the core is configured to be in operative communication with a magnetic field radiated from the power line, such that an AC voltage is generated in the first and second secondary windings, and the maximum AC voltage produced by the first and second secondary windings is limited by the first and second DC core-flux control windings.
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Citations
12 Claims
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1. A device for harvesting energy from a power line carrying AC current comprising:
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a transformer having a core with separate first and second sections, with the core being formed of ceramic or metal alloy material having a relative magnetic permeability of at least about 30,000; a first secondary winding wound around the first section of the core; a second secondary winding wound around the second section of the core; a first DC core-flux control winding wound around the first section of the core; and a second DC core-flux control winding wound around the second section of the core; wherein the core is configured to be in operative communication with a magnetic field radiated from the power line, such that an AC voltage is generated in the first and second secondary windings, and the maximum AC voltage produced by the first and second secondary windings is limited by the first and second DC core-flux control windings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification