Pulse controllers

Details Pulse controllers Pulse controllers

1978-02-13

1983-08-30

Smith, Jr., David

Electricity: motive power systems

Braking

Dynamic braking

318139, H02P 314

Patent

active

044019262

ABSTRACT:
A pulse controller for controlling the energization and regenerative braking of a DC electric motor. An electronic switch connects the motor to a power source during motor driving and controls motor current during regenerative braking, the switch being rendered alternately conductive and non-conductive during both driving and braking and the ratio of conductive to non-conductive periods being controlled. The conductive and non-conductive periods are interrelated such that, regardless of the ratio between the periods, during regenerative braking the switch alternates between its conductive and non-conductive states at a rate sufficient to automatically maintain the generated motor current within desired maximum and minimum limits.

REFERENCES:
patent: 3593089 (1971-07-01), Appelo
patent: 3624475 (1971-11-01), Smith
patent: 3630304 (1971-12-01), Sahinkaya
patent: 3735220 (1973-05-01), Renner
patent: 3803472 (1974-04-01), Konrad
patent: 3808481 (1974-04-01), Rippel
patent: 3989990 (1976-11-01), Thompson
patent: 4037145 (1977-07-01), Bailey et al.
patent: 4074175 (1978-02-01), Born et al.
patent: 4084119 (1978-04-01), Kato
patent: 4124812 (1978-11-01), Naito et al.

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