DC Motor drive assembly having a controller/charge with regenera

Details DC Motor drive assembly having a controller/charge with regenera DC Motor drive assembly having a controller/charge with regenera

1996-03-04

1998-01-27

Cabeca, John W.

Electricity: motive power systems

Braking

Dynamic braking

318139, 320 64, H02P 0318

Patent

active

057125490

ABSTRACT:
A drive assembly comprises a DC electric motor and an integrated charger/controller/regenerator which includes a power module, a step-down module and a control circuit. The input of the power module is connected to an electric power source during charging, and to the DC motor during regenerative braking. The input of the step-down module is connected to the power module, and the output is connected to the battery. The control circuit includes a multiplicity of switches, and has three modes of operation: driving, regenerative braking and charging. During driving, the switches connect the battery to the power module input and the power module output to the DC motor. During regenerative braking, the switches connect the DC motor to the power module input and the power module output to the step-down module input, and the step-down module output charges the battery. During charging, the switches connect the power module output to the step-down module input, and the step-down module output charges the battery.

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