ENERGY HARVESTING FROM MULTIPLE PIEZOELECTRIC SOURCES
First Claim
1. An energy harvesting system comprising:
- two or more energy generators;
an independent diode bridge circuit electrically connected to each of said energy generators; and
a single energy harvesting circuit electrically connected to an output of each of said independent diode bridge circuits.
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Accused Products
Abstract
Energy harvesting systems and methods that use multiple piezoelectric generators connected to the same energy harvesting circuit with minimal or no energy loss. The piezoelectric energy harvesting system may include individual diode bridge circuits electrically connected to the outgoing wires from each piezoelectric generator. The piezoelectric energy harvesting system may include multiple subsystems each having one or more individual diode bridges electrically connected to the outgoing wires from multiple piezoelectric generators. Multiple subsystems, each having multiple piezoelectric generators and a diode bridge, may be electrically connected to the same energy harvesting circuit. The use of multiple piezoelectric generators connected to the same energy harvesting circuit results in improved energy harvesting capabilities, and a simplified and low cost energy harvesting system.
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Citations
35 Claims
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1. An energy harvesting system comprising:
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two or more energy generators; an independent diode bridge circuit electrically connected to each of said energy generators; and a single energy harvesting circuit electrically connected to an output of each of said independent diode bridge circuits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An energy harvesting system comprising:
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an energy harvesting circuit; two or more energy harvesting generator subsystems electrically connected to said energy harvesting circuit; each energy harvesting generator subsystem comprising; two or more energy generators; and an independent diode bridge circuit connected to at least two of said energy generators. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An energy harvesting system comprising:
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one or more energy generators; an independent diode bridge circuit connected to each of said energy generators; one or more energy harvesting generator subsystems, each subsystem comprising; two of more subsystem energy generators; an independent subsystem diode bridge circuit connected to two or more of said subsystem energy generators; an energy harvesting circuit electrically connected to; an output of each of said independent diode bridge circuits; and to each of said independent subsystem diode bridge circuits. - View Dependent Claims (23, 24)
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25. A method of harvesting electrical energy from ambient mechanical energy with minimal or no energy loss, said method comprising:
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generating an electrical charge in response to an applied mechanical stress using multiple AC generators; converting AC input from said multiple AC generators to DC output using an independent diode bridge circuit electrically connected to each AC generator; storing said DC output from each of said independent diode bridge circuits to a single energy harvesting circuit as harvested electrical energy; and reducing and/or eliminating energy loss due to the converse piezoelectric effect in an energy harvesting system having multiple AC generators. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. An energy harvesting system comprising:
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an energy harvesting circuit; two or more diode bridge circuits electrically connected to said energy harvesting circuit; and one or more piezoelectric generators electrically connected to each of said diode bridge circuits. - View Dependent Claims (34, 35)
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Specification