Patent ID: 7248005

Claim:
A dual motor arrangement comprising: a first motor, a first MOSFET constructed and arranged to control operation of the first motor, a second motor, a second MOSFET constructed and arranged to control operation of the second motor, RFI filter structure associated with the first and second motors, the RFI filter structure including a first inductor associated with an RFI capacitor, a freewheeling circuit associated with the first and second motors, the freewheeling circuit including a second inductor and an associated freewheeling capacitor, the second inductor and the first inductor being coupled to define a transformer, and a controller constructed and arranged to provide a first PWM signal to the first MOSFET and a second PWM signal to the second MOSFET, the second PWM signal being in staggered time relation with respect to the first PWM signal, wherein when one motor is in a freewheeling mode of operation for at least a portion of a time that the MOSFET, associated with the other motor, is on, freewheeling of the one motor decreases an amount of current drawn by the other motor during turn on of the other motor.