Power harvesting wireless transmitter
First Claim
1. An apparatus for a self-powered wireless transmitter associated with a component that has a periodic motion, said apparatus comprising:
- a magnet having a magnetic field, said magnet configured to attach to the moving component;
an inductor responsive to said magnetic field when there is relative motion between said magnet and said inductor;
a power supply circuit electrically connected to said inductor, said power supply circuit including a voltage multiplier connected to a storage circuit, said storage circuit connected to a voltage regulating circuit, said voltage multiplier including a capacitor-diode network wherein a plurality of capacitors store energy from said capacitor-diode network, said storage circuit connected across an output of said voltage multiplier, said voltage regulating circuit being a passive circuit connected in parallel with said storage circuit;
a processor electrically connected to said power supply, said processor having at least one input that is responsive to a corresponding external condition, said processor having an output based on said at least one input; and
a transmitter electrically connected to said power supply, said transmitter connected to said output from said processor, said transmitter connected to an antenna, and said transmitter sending a wireless signal corresponding to said output of said processor.
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Accused Products
Abstract
Apparatus for a power harvesting wireless transmitter. The wireless transmitter includes a magnet, an inductor, a power supply, a processor, and a transmitter with an antenna. The magnet interacting with the inductor provides a sole source of power sufficient to power the transmitter. The inductor is connected to the power supply. The power supply includes a voltage multiplier, a storage unit, and, in one embodiment, a voltage regulator. The processor includes at least one input connected to one or more local switches, sensors, and instruments. The processor outputs an identifier and data corresponding to the inputs. The processor output is connected to the transmitter, which sends a wireless signal containing the identifier and data.
34 Citations
25 Claims
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1. An apparatus for a self-powered wireless transmitter associated with a component that has a periodic motion, said apparatus comprising:
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a magnet having a magnetic field, said magnet configured to attach to the moving component; an inductor responsive to said magnetic field when there is relative motion between said magnet and said inductor; a power supply circuit electrically connected to said inductor, said power supply circuit including a voltage multiplier connected to a storage circuit, said storage circuit connected to a voltage regulating circuit, said voltage multiplier including a capacitor-diode network wherein a plurality of capacitors store energy from said capacitor-diode network, said storage circuit connected across an output of said voltage multiplier, said voltage regulating circuit being a passive circuit connected in parallel with said storage circuit; a processor electrically connected to said power supply, said processor having at least one input that is responsive to a corresponding external condition, said processor having an output based on said at least one input; and a transmitter electrically connected to said power supply, said transmitter connected to said output from said processor, said transmitter connected to an antenna, and said transmitter sending a wireless signal corresponding to said output of said processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for a self-powered wireless transmitter associated with a component that has a periodic motion, said apparatus comprising:
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a magnet having a magnetic field; an inductor responsive to said magnetic field when there is relative motion between said magnet and said inductor; a power supply circuit electrically connected to said inductor, said power supply circuit including a voltage multiplier, said voltage multiplier having an output connected to a voltage regulating circuit, said voltage multiplier having an output voltage greater than a voltage induced across said inductor by said magnetic field, said magnetic field interacting with said inductor is a sole source of power for said power supply; and a transmitter electrically connected to said power supply, said transmitter configured to send a wireless signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An apparatus powered from a machine with a component that has a periodic motion, said apparatus comprising:
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a magnet configured to attach to the component, said magnet having a magnetic field; an inductor responsive to said magnetic field when there is relative motion between said magnet and said inductor; a voltage multiplier electrically connected to said inductor, said voltage multiplier having an output voltage greater than a voltage induced across said inductor by said magnetic field; a storage circuit electrically connected to an output of said voltage multiplier; and a voltage regulating circuit electrically connected to said storage circuit. - View Dependent Claims (20, 21, 22)
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23. An apparatus for a self-powered wireless transmitter associated with a moving component that has a periodic motion, the moving component having a magnet, said apparatus comprising:
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an inductor responsive to the magnet when there is relative motion between the magnet and said inductor; a power supply circuit electrically connected to said inductor, said power supply circuit including a voltage multiplier and a storage circuit, said voltage multiplier including a capacitor-diode network wherein a plurality of capacitors store energy from said capacitor-diode network, said storage circuit connected across an output of said voltage multiplier; and a transmitter electrically connected to said power supply, and said transmitter connected to an antenna. - View Dependent Claims (24, 25)
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Specification