Dual motor arrangement and control method

A method of operating a dual motor arrangement, the arrangement including 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 coupIed to define a transformer, and a controller, the method including:

• providing, via the controller, a first PWM signal to the first MOSFET and a second PWM signal to the second MOSFET with the second PWM signal being in staggered time relation with respect to the first PWM signal, and
• ensuring that 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, such that freewheeling of the one motor decreases an amount of current drawn by the other motor during turn on of the other motor.