Full-wave feedback speed control for hand mixer

Details Full-wave feedback speed control for hand mixer Full-wave feedback speed control for hand mixer

G - Physics

05

D

341/91

G05D 13/62 (2006.01) H02P 7/295 (2006.01)

Patent

CA 2038257

ABSTRACT A speed control circuit for a permanent magnet motor utilizing full wave rectified current and including an SCR controlled by a circuit responsive to the counter EMF of the motor during the period the SCR is shut off which is compared to a reference voltage produced in a transistor circuit.

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