Magnetic power generation
Embodiments of the present disclosure include an apparatus comprising an electronic device, a first magnet, and an inductive coil surrounding a magnetically susceptible core, wherein movement of the first magnet relative to the magnetically susceptible core changes a magnetic flux in the magnetically susceptible core to produce a current in the inductive coil, and in accordance therewith, provide power to the electronic device.
1. An apparatus comprising:
a batteryless electronic circuit;
a chamber;
a first permanent magnet configured in the chamber;
a second permanent magnet external to the chamber and moveable relative to the first permanent magnet at a distal end of the chamber, the first and second permanent magnets configured to generate a first magnetic force that changes in response to the movement of the second permanent magnet relative to the first permanent magnet;
a magnetically susceptible element external to the chamber and located at the proximate end of the chamber, the magnetically susceptible element and the first permanent magnet configured to generate a second magnetic force that changes in response to the movement of the first permanent magnet relative to the magnetically susceptible element; and
an inductive coil magnetically coupled to the magnetically susceptible element, the inductive element having an output coupled to a power input of the electronic circuit,
wherein when the first magnetic force is greater than the second magnetic force, the first permanent magnet is pulled toward the second permanent magnet and away from the magnetically susceptible element,
wherein when the second magnetic force is greater than the first magnetic force, the first permanent magnet is pulled toward the magnetically susceptible element, and
wherein movement of the first permanent magnet causes a change in a magnetic flux of the magnetically susceptible element, and in accordance therewith, produces a voltage at the output of the inductive coil to power the electronic circuit.
2. The apparatus of claim 1 wherein the second permanent magnet moves relative to the first permanent magnet such that the first and second magnetic forces alternatively control the movement of the first permanent magnet.
3. The apparatus of claim 1 wherein:
when the second permanent magnet is in a first range from the first permanent magnet, the first magnetic force exceeds the second magnetic force and the first permanent magnet is pulled toward the second permanent magnet at the distal end and away from the proximate end, and
when the second permanent magnet in a second range from the first permanent magnet greater than the first range, the second magnetic force exceeds the first magnetic force and the first permanent magnet is pulled toward the magnetically susceptible element at the proximate end and away from the distal end.
4. The apparatus of claim 1 wherein the first permanent magnet is a spherical ball and the chamber comprises a tubular shape.
5. The apparatus of claim 1 wherein the length of the tubular chamber is greater than a diameter of the spherical ball.
6. The apparatus of claim 1 wherein the length of the tubular chamber is less than twice a diameter of the spherical ball.
7. The apparatus of claim 1 wherein the spherical ball rotates as it is pulled toward the magnetically susceptible element and as it is pulled toward the second permanent magnet.
8. The apparatus of claim 1 wherein the first permanent magnet collides when it reaches a distal end or proximate end and creates vibrations upon colliding that change the magnetic flux.
9. The apparatus of claim 1 wherein movement of the first permanent magnet when pulled to either the magnetically susceptible element or the second permanent magnet changes the magnetic flux.
10. The apparatus of claim 1 wherein the second permanent magnet moves orthogonally or rotationally relative to the first permanent magnet.
11. The apparatus of claim 1 wherein a spacer between the first permanent magnet and the magnetically susceptible element at the proximate end is configured to weaken the second magnetic force so that the first magnetic force moves the first permanent magnet away from the proximate end when the second permanent magnet is within a first range.
12. The apparatus of claim 1 wherein the magnetically susceptible element includes a core surrounded by the inductive coil, wherein current flows through the inductive coil due to vibrations of the first permanent magnet.
13. The apparatus of claim 1 wherein the inductive coil is wrapped around the core N number of turns, N being an integer value.
14. The apparatus of claim 1 wherein the number of turns of the inductive coil is determinative of a current generated in the inductive coil based on magnetic flux in the core.