No-load generator

A load-free generator comprising:

• a rotational axis;
• a first ring magnet train (2) having N and S poles successively arranged on an outer periphery of a first rotational orbit about said rotational axis;
• a second ring magnet train (2) having magnets successively arranged on an outer periphery of a second rotational orbit about said rotational axis, said second rotational orbit located at a predetermined distance from said first rotational orbit, and polarities of the magnets of said second ring magnet train being opposite to polarities at opposite locations on said first rotational orbit;
• a plurality of first magnet induction primary cores (4) fixed along a first outer peripheral surface of said first ring magnet train at a predetermined distance from said first outer peripheral surface;
• a plurality of second magnet induction primary cores (4′) fixed along a second outer peripheral surface of said second ring magnet train at a predetermined distance from said second outer peripheral surface;
• a plurality of first coupling magnetic induction cores (8) and a plurality of second coupling magnet induction cores (8′) provided as pairs to link said first and second magnet induction primary cores and form a closed magnet circuit between said first and second magnet induction primary cores opposite to each other in direction of said rotational axis;
• first responsive coils (7) wound around said first second coupling magnet induction cores respectively;
• and
• second responsive coils (7′) would around said first coupling magnetic induction cores respectively, direction of winding of said second responsive coils being opposite to that of said first responsive coils.