| 20090087319 | PUMP SYSTEM INCLUDING A VARIABLE FREQUENCY DRIVE CONTROLLER - A pump system generally comprising an electrical connector operable to couple with an electric circuit to receive electricity, an electric motor operable to actuate a pump to pump a fluid, and a variable frequency drive (VFD) controller. The VFD controller is operable to control the rotational speed of the electric motor by providing a variable frequency signal to the electric motor to prevent the current utilized by the electric motor from exceeding a maximum current level associated with the electric circuit. | 04-02-2009 |
