A linear electro-mechanical system comprising: a stator including at least first and second stator electronic circuits or groups of circuits; a free piston mover movable in a reciprocating motion relative to the stator, the free piston including: a piston surface; a translator configured so that an electromagnetic force may be applied on the free piston mover by one or more of the stator electronic circuits or groups of circuits; and one or more translator electronic circuits, the system further comprising a switching device for each of the first and second stator electronic circuits or groups of circuits such that the current in each of the first and second stator electronic circuits or groups of circuits is independently controllable, and wherein at least one of the translator electronic circuits is configured to receive power from at least one of the independently controlled stator electronic circuits or groups of circuits during at least part of the stroke of the free piston mover.

A magneto ignition system for battery less hand-held combustion engines includes a claw generator with a stationary circular power coil winding enclosed by two iron claw halves and with a rotating flywheel magnet ring with multiple magnetic poles. The stationary circular coil winding includes a trigger coil with a stationary coil winding arranged in a plane orthogonal to the stationary circular power coil winding. The magneto ignition system further includes an engine control module ECM for establishment of appropriate ignition timing, and an ignition coil module ICM. The stationary circular power coil winding may provide the electrical power supply to both the ignition timing module ECM and the ignition coil module ICM.

A magneto ignition system for battery less hand-held combustion engines includes a claw generator with a stationary circular power coil winding enclosed by two iron claw halves and with a rotating flywheel magnet ring with multiple magnetic poles. The stationary circular coil winding includes a trigger coil with a stationary coil winding arranged in a plane orthogonal to the stationary circular power coil winding. The magneto ignition system further includes an engine control module ECM for establishment of appropriate ignition timing, and an ignition coil module ICM. The stationary circular power coil winding may provide the electrical power supply to both the ignition timing module ECM and the ignition coil module ICM.

A magneto ignition system for battery less hand-held combustion engines includes a claw generator with a stationary circular power coil winding enclosed by two iron claw halves and with a rotating flywheel magnet ring with multiple magnetic poles. The stationary circular coil winding includes a trigger coil with a stationary coil winding arranged in a plane orthogonal to the stationary circular power coil winding. The magneto ignition system further includes an engine control module ECM for establishment of appropriate ignition timing, and an ignition coil module ICM. The stationary circular power coil winding may provide the electrical power supply to both the ignition timing module ECM and the ignition coil module ICM.

A power tool is provided. The power tool includes an internal combustion engine and an integrated device coupled to the internal combustion engine. The internal combustion engine includes a flywheel or another rotating component. The integrated device is enclosed in a housing and is coupled adjacent to either the flywheel or a rotating component. The integrated device includes a printed circuit board with a wireless communications module and a power generation portion which receives power wirelessly from the internal combustion engine.

A power tool is provided. The power tool includes an internal combustion engine and an integrated device coupled to the internal combustion engine. The internal combustion engine includes a flywheel or another rotating component. The integrated device is coupled adjacent to either the flywheel or a rotating component. The integrated device includes a printed circuit board with a wireless communications module and a power generation portion which receives power wirelessly from the internal combustion engine only when the internal combustion engine is operating.

A power tool is provided. The power tool includes an internal combustion engine and a wireless communications device coupled to the internal combustion engine. The internal combustion engine includes an ignition coil assembly and a flywheel. The wireless communications device is coupled adjacent to either the flywheel or to the ignition coil assembly. The wireless communications device receives power wirelessly from the internal combustion engine only when the internal combustion engine is operating.

A power tool is provided. The power tool includes an internal combustion engine and an integrated device coupled to the internal combustion engine. The internal combustion engine includes a flywheel or another rotating component. The integrated device is enclosed in a housing and is coupled adjacent to either the flywheel or a rotating component. The integrated device includes a printed circuit board with a wireless communications module and a power generation portion which receives power wirelessly from the internal combustion engine.

A power tool is provided. The power tool includes an internal combustion engine and an integrated device coupled to the internal combustion engine. The internal combustion engine includes a flywheel or another rotating component. The integrated device is coupled adjacent to either the flywheel or a rotating component. The integrated device includes a printed circuit board with a wireless communications module and a power generation portion which receives power wirelessly from the internal combustion engine only when the internal combustion engine is operating.

A power tool is provided. The power tool includes an internal combustion engine and a wireless communications device coupled to the internal combustion engine. The internal combustion engine includes an ignition coil assembly and a flywheel. The wireless communications device is coupled adjacent to either the flywheel or to the ignition coil assembly. The wireless communications device receives power wirelessly from the internal combustion engine only when the internal combustion engine is operating.