Plugging electrical braking control circuit

Details Plugging electrical braking control circuit Plugging electrical braking control circuit

1983-01-05

1985-05-21

Miska, Vit W.

Electricity: motive power systems

Braking

'plugging' or application of reverse power to motor

318 55, 318 80, 318139, 318258, H02P 310

Patent

active

045189021

ABSTRACT:
The invention pertains to a control system (46) for controlling the supply of power to a motor (12) to produce plugging electrical braking and current limit control, including a circuit (60) for controlling the direction of energization of the motor (12), a circuit (88) for generating digital numbers representing command motor speeds, a circuit (14) for generating a data signal representing a plugging condition, a programmable data processor (18) for generating pulse trains in dependence on the plugging condition, and a power transistor element (40) for coupling power to the motor (12) in response to the pulse trains. By using state-of-the-art digital, integrated circuit and software technology, prior, essentially linear or discrete component technology, which is relatively unreliable, expensive and slow, need not be used.

REFERENCES:
patent: 3551773 (1970-12-01), Dannettell et al.
patent: 3710216 (1973-01-01), Smith
patent: 3911342 (1975-10-01), Herwig
patent: 4363999 (1982-12-01), Preikschat

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