D-C voltage control

Details D-C voltage control D-C voltage control

1974-08-26

1976-06-01

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318542, H02K 1300, H02P 544, H02P 750

Patent

active

039612333

ABSTRACT:
This control supplies varying amounts of d-c voltage to a load, such as a motor, to control the speed of the motor, as for example in a battery powered vehicle. A rotating commutator-type switch supplies voltage during portions of each revolution depending upon the position of an adjustable pair of brushes relative to a stationary pair of brushes. An inductance stores energy during the voltage-on intervals and discharges this energy through the motor during the voltage-off intervals in each revolution of the commutator so as to supply a fluctuating voltage to the motor.

REFERENCES:
patent: 1526613 (1925-02-01), Stephenson
patent: 2135260 (1938-11-01), Norcross
patent: 3364409 (1968-01-01), Schuepp
patent: 3422334 (1969-01-01), Jastrzembski

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