| 摘要 |
Methods and apparatus generate electricity through the operation of a cir cuit based upon a single magnetic flux path. A magnetizable member provides the flux path. One or more electrically conductive coils are wound around th e member, and a reluctance or flux switching apparatus is used to control th e flux. When operated, the switching apparatus causes a reversal of the pola rity (direction) of the magnetic flux of the permanent magnet through the me mber, thereby inducing alternating electrical current in each coil. The flux switching apparatus may be motionless or rotational. In the motionless embo diments, two or four reluctance switches are operated so that the magnetic f lux from one or more stationary permanent magnet(s) is reversed through the magnetizable member. In alternative embodiments the flux switching apparatus comprises a body composed of high-permeability and low-permeability materia ls, such that when the body is rotated, the flux from the magnet is sequenti ally reversed through the magnetizable member. |
