| 摘要 |
<p>An electrical apparatus comprises a bridge circuit (10) having a plurality of rectifier legs (12a-c) electrically connected in parallel. Each of the rectifier legs (12a-c) comprises a first and second rectifier (18a-c, 19a-c) coupled in series and having an input node (22a-c) therebetween. The electrical apparatus further comprises a switch (24), having a control input (26), a power input (28), and a power output (30), coupled in parallel with the bridge circuit (10), and a controller (32) having a control output (34) coupled to the control input (26) of the switch (24) for regulating the opening and closing of the switch (24). When the bridge circuit (10) is coupled to the disassociated neutral terminals (38a-c) of a wye wound electrical device (36), the controller (24) modulates the switch (24) to provide a current controlled soft start of the device (36) including acceleration and breaking of the device.</p> |
