A car permanent
magnet generator is mainly composed of a rear cover, a three-phase
bridge type controlled
rectifier, an electronic
voltage regulating controller, a rear end cover, a
stator, a
permanent magnet rotor, a bearing, a front end cover, a belt wheel, wherein the belt wheel drives the
permanent magnet rotor to rotate, to cause the
stator winding to induce out the three-phase
alternating current, then is set as the DC output through the three-phase
bridge type controlled
rectifier. The electronic
voltage regulating controller controls the angle of current flow of the
thyristor, to cause the generator to output the stable
DC voltage, characterized in that, the
stator is arranged with two sets of three-phase windings, one is in the 'Y'-connection, and the other is in the 'triangle'-connection, which constitute two three-phase controlled
bridge type rectifying circuits with the three-phase bridge type controlled
rectifier, wherein the two rectifying circuits are in the parallel output. Due to the
voltage phase difference 30 of the two windings, the output voltage pulses every 30 degrees, so the more the pulse times of the rectifying output voltage in a period is, the smaller the
ripple of the output voltage of the car permanent
magnet generator is.