Patent ID: 7646178

Claim:
A generator, including a coreless stator and rotor assembly, and integral power control electronics, for producing regulated DC current and voltage, from mechanical shaft input power, over a broad range of shaft speeds, comprising: stator disks holding 2-phase stator windings in a non-conductive non-magnetic matrix, axially juxtaposed with abutting conductor insulation, said windings angularly juxtaposed relative to each other 180° divided by the number of poles, said disks angularly aligned with a selectable number of like disks, that each produce across their windings a substantially sinusoidal voltage having amplitude and frequency proportional to shaft speed; rotor disks holding a plurality of axially-magnetized alternating pole permanent-magnets, attached therein in a symmetrical circular array around and attached to a rotatable center shaft, said rotor disks angularly aligned with a selectable number of like disks numbering one more than the number of stator disks, the axial magnetic field from the rotor disks at the stator varying substantially sinusoidally with rotor angle; two rotor angle sensors, responsive to the magnetic field from the rotor disks, the two sensors respectively aligned with the center of a stator winding radial segment of corresponding phase, to sense the rotor magnetic field and produce constant peak amplitude substantially sinusoidal signals varying with rotor angle; and integral power control electronics, responsive to the signals from the rotor angle sensors, and to a DC output voltage feedback signal, and to user settings, and to stator winding current feedback signals processed by circuits having wide dynamic range, for controlling current through the stator windings by high-frequency pulse-width-modulation, to provide DC power by filtered high-frequency PWM boost-regulation fly-back, having regulated current and voltage, for a DC load, from shaft power, over a broad range of shaft speeds.