The innovative ODE2 Single Phase motor controller uses a unique control algorithm that ensures reliable starting and control. These drives are designed only for use on Shaded Pole (SP) or Permanent Split Capacitor (PSC) type motors in variable torque, direct drive fan and centrifugal pump applications. They use high frequency switching to provide near silent running which is most desirable in applications such as commercial and residential HVAC, fume extraction, laboratories and quiet locations.