Patent ID: 7471022

Claim:
A system comprising: a rotor comprising: a radial magnetic bearing rotating portion comprising: a hub; a plurality of laminations; a sensor target ring; a first touchdown journal; and a second touchdown journal; and a stator comprising: a radial magnetic bearing static portion comprising: three or more electromagnets, each electromagnet comprised by an electromagnet sector; a first support plate adapted to support said electromagnet sectors; a second support plate adapted to support said electromagnet sectors; three or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said three or more electromagnets, each of said three or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a pair of said three or more electromagnets; a first annular circuit board adapted to accept a communicative connection from a network; a second annular circuit board adapted to provide control signaling to said three or more pulse width modulated amplifiers; a plurality of position sensors adapted to detect a radial position of said rotor, each of said plurality of position sensors located between a pair of three or more electromagnets; a touchdown ring adapted to separate said rotor from said stator when no electrical energy is applied to said radial magnetic bearing; and a thrust magnetic bearing static portion comprising: two or more electromagnets; two or more pulse width modulated amplifiers, each adapted to provide electrical energy to a corresponding electromagnet of said two or more electromagnets, each of said two or more pulse width modulated amplifiers comprised by a corresponding wedge volume, each wedge volume radially disposed between a corresponding pair of said two or more electromagnets; a first annular circuit board adapted to accept a communicative connection from a network; and a second annular circuit board adapted to provide control signaling to said two or more pulse width modulated amplifiers.