DEVICE FOR STEPLESS STARTING OF SINGLE-PHASE COMMUTATOR MOTOR Russian patent published in 2005 - IPC

FIELD: electrical engineering; stepless starting of domestic and industrial stepping motors.

SUBSTANCE: proposed device has linearly varying signal generator, clock generator, frequency divider, multiplexer, counter, power turn-on reset unit, comparison gate, and pulse shaper. Clock generator is connected through frequency divider to multiplexer whose output is connected to counter. Output of power turn-on reset unit is connected to asynchronous setting input of counter whose output is connected to control input of multiplexer and to initial state setting input of linearly varying signal generator whose output is connected through comparison gate to pulse shaper.

EFFECT: enhanced service period of motor due to reduced starting torque in motor switching-on.

1 cl, 1 dwg