Power coupling for free piston mover

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 mover 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;
• and
• a first switching device for the first stator electronic circuits or groups of circuits and a second switching device for the second stator electronic circuits or groups of circuits to independently control a configuration of the current in the first and second stator electronic circuits or groups of circuits;
• wherein at least one of the translator electronic circuits is configured to receive electrical power from at least one of the independently controlled stator electronic circuits or groups of circuits during at least a part of a stroke of the free piston mover,
• wherein at least one of the first or second switching devices respectively controls the first or second stator electronic circuits or groups of circuits to transmit electrical power to at least one of the translator electronic circuits during the part of the stroke of the free piston mover and to transmit motive force during another part of the stroke of the free piston mover,
• a controller whose output signals activate at least one of the switching devices;
• and
• at least one electrically operated device connected to the translator electronic circuit of the free piston mover;
• wherein the electrically operated device is powered by electrical power transmitted from at least one of the electronic circuits or groups of circuits to at least one translator electronic circuit on the free piston mover.