Control circuit for two speed motors

Details Control circuit for two speed motors Control circuit for two speed motors

1996-10-31

1997-11-18

Ro, Bentsu

Electricity: motive power systems

Induction motor systems

Primary circuit control

318779, 318786, H02P 540

Patent

active

056891687

ABSTRACT:
A control circuit for a two speed electric motor includes high and low speed electronic switches. The high speed electronic switch is biased off when the low speed electronic switch is biased on. The low speed run winding of the motor is activatable only through the low speed electronic switch. The high speed run winding of the motor is activatable either directly through a high speed setting of a speed selector switch or through the high speed electronic switch in a low speed setting of the speed selector switch. Upon activation of the motor start winding, the low speed electronic switch is off and the high speed electronic switch is on.

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