Multi-stage dynamic braking resistor network

Details Multi-stage dynamic braking resistor network Multi-stage dynamic braking resistor network

2006-03-14

2006-03-14

Ip, Paul (Department: 2837)

Electricity: motive power systems

Braking

Dynamic braking

C318S371000, C318S375000, C702S132000

Reexamination Certificate

active

07012392

ABSTRACT:
A multi-stage dynamic braking resistor network (23) is provided that includes a plurality of dynamic brake resistors (1a–d) for dissipating, as heat, regenerative energy inputted onto a system bus (17) by a motor or actuator (19), and a plurality of switches (31a–d) for connecting the dynamic brake resistors (1a–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 (31a–d) such that the dynamic brake resistors (1a–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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