D-c voltage control

Details D-c voltage control D-c voltage control

H - Electricity

02

K

323/28

H02K 13/00 (2006.01) B60L 11/18 (2006.01) B60L 15/08 (2006.01) H02K 11/00 (2006.01) H02P 7/29 (2006.01)

Patent

CA 1037116

ABSTRACT OF THE DISCLOSURE 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 commu- tator so as to supply a fluctuating voltage to the motor.

232975

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