| 摘要 |
A multi-stage dynamic braking resistor network ( 23 ) is provided that includes a plurality of dynamic brake resistors ( 1 a-d) for dissipating, as heat, regenerative energy inputted onto a system bus ( 17 ) by a motor or actuator ( 19 ), and a plurality of switches ( 31 a-d) for connecting the dynamic brake resistors ( 1 a-d) to and from the system bus ( 17 ), respectively. The multi-stage dynamic braking resistor network ( 23 ) further includes a control circuit ( 25 ) for controlling the switches ( 31 a-d) such that the dynamic brake resistors ( 1 a-d) are connected to and from the system bus ( 17 ) on the basis of a predetermined voltage threshold of the system bus and on the basis of a predetermined rotation pattern.
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