Abstract: A system, method, and apparatus for kinetic energy harvesting are disclosed. An example electronic device includes a processor and a battery. The electronic device also includes first and second magnet housings. Each of the first and second magnet housing contains a central magnet and a ferrous shield connected to the respective magnet housings. One of the ferrous shields is located on a first side of the first magnet housing that is opposite of a second side facing the second magnet housing. The other of the ferrous shields is located on a first side of the second magnet housing that is opposite of a second side facing the first magnet housing. The first magnet housing and the second magnet housing are configured to generate a current to charge the battery.

Abstract: A system, method, and apparatus for kinetic energy harvesting are disclosed. An example kinetic energy harvesting apparatus includes a tubular-shaped magnet housing and an end-cap magnet configured to connect to an end of the magnet housing. The apparatus also includes a wire coil configured to be connected to the magnet housing. The apparatus further includes a central magnet configured to be located within the magnet housing and suspended via the end-cap magnet.

Abstract: A system, method, and apparatus for kinetic energy harvesting are disclosed. An example kinetic energy harvesting apparatus includes first and second magnet housings configured to each have a tubular shape. Each of the first and second magnet housing contains a central magnet and a ferrous shield connected to the respective magnet housings. One of the ferrous shields is located on a first side of the first magnet housing that is opposite of a second side facing the second magnet housing. The other of the ferrous shields is located on a first side of the second magnet housing that is opposite of a second side facing the first magnet housing.

Abstract: A system, method, and apparatus for kinetic energy harvesting are disclosed. An example kinetic energy harvesting apparatus includes a tubular-shaped magnet housing, a first end-cap magnet configured to connect to a first end of the magnet housing and a second end-cap magnet configured to connect to a second end of the magnet housing. The apparatus also includes a first wire coil configured to be connected to the magnet housing between the first end and a center of the magnet housing and a second wire coil configured to be connected to the magnet housing between the second end and the center of the magnet housing. The apparatus further includes a central magnet configured to be located within the magnet housing between the first end and the second end such that the central magnet is suspended within the magnet housing.