This eddy-current retarding device includes: a magnet holding member that is coaxially provided to a rotating shaft and holds plural permanent magnets in a circumferential direction; a brake member that includes paired disk portions disposed on both sides ...

Current source converter (CSC) based motor drives and control techniques are presented in which DC link current is regulated to a level set by the output inverter during dynamic braking operation by pulse width modulation of a braking resistance connection...

The present invention relates to a power converter and provides, an overvoltage suppression function of low cost and high reliability. The power converter (1) has a power conversion circuit (5), when driving a motor (2), for converting power from a battery...

The arrangement has changeover device (UMS) in connecting cables leading from a 4-quadrant actuator (4QS) to the secondary winding (TW1,2) of a transformer, enabling the 4-quadrant actuator to be selectively connected to the secondary winding or to a braki...

The invention concerns multistage power switching electronic device for reducing undesirable harmonics amplitudes generated in said device, in particular in the form of beats, comprising at least an input filter (1), a rheostatic braking chopper (2) includ...