A highly energy efficient circuit for an AC ceiling fan motor in high speed gear, which comprises a speed regulator and a ceiling fan motor whose output torque at full voltage exceeds a required torque at rated load. Two ends of a winding of the ceiling fan motor are connected to a voltage-regulating capacitor bank and a zero line, respectively. The voltage-regulating capacitor bank comprises a first capacitor bank for enabling low speed operation of the ceiling fan motor by stepping down by a third capacitor, a second capacitor bank for enabling medium speed operation of the ceiling fan motor by stepping down by a second capacitor and the third capacitor in parallel, and a third capacitor bank for enabling high speed operation of the ceiling fan motor by stepping down by a first capacitor, the second capacitor and the third capacitor in parallel.

A laundry appliance includes a blower that selectively delivers process air through an airflow path. A rotating drum defines a portion of the airflow path. The rotating drum is attached to a drive shaft that rotates the rotating drum about a rotational axis. The blower and the drive shaft are operated by a common motor. A heater selectively delivers heat to the airflow path. The heater defines an energizing state when a motor current delivered to the common motor is within a predetermined motor current range that is indicative of the common motor operating. The heater defines an idle state when the motor current is outside of the predetermined motor current range.

A laundry appliance includes a blower that selectively delivers process air through an airflow path. A rotating drum defines a portion of the airflow path. The rotating drum is attached to a drive shaft that rotates the rotating drum about a rotational axis. The blower and the drive shaft are operated by a common motor. A heater selectively delivers heat to the airflow path. The heater defines an energizing state when a motor current delivered to the common motor is within a predetermined motor current range that is indicative of the common motor operating. The heater defines an idle state when the motor current is outside of the predetermined motor current range.

Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.

Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.

Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.

Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.

This electric hoisting machine comprises: a motor driven by single-phase current; a cylindrical motor housing; a starting capacitor; a operating capacitor; a starting capacitor disconnecting switch; a control unit which controls the operation of the motor and which is covered by a control housing; and a housing case in which small-diameter cylindrical portions for accommodating the starting capacitor, a large-diameter cylindrical portion for accommodating the operating capacitor, and a large-diameter cylindrical portion for accommodating the starting capacitor disconnecting switch are integrally provided in a state of continuing in a horizontal row, the housing case being mounted on the outer periphery of the motor housing in such a manner that the cylindrical portions are oriented parallel to a rotation axis.

This electric hoisting machine comprises: a motor driven by single-phase current; a cylindrical motor housing; a starting capacitor; a operating capacitor; a starting capacitor disconnecting switch; a control unit which controls the operation of the motor and which is covered by a control housing; and a housing case in which small-diameter cylindrical portions for accommodating the starting capacitor, a large-diameter cylindrical portion for accommodating the operating capacitor, and a large-diameter cylindrical portion for accommodating the starting capacitor disconnecting switch are integrally provided in a state of continuing in a horizontal row, the housing case being mounted on the outer periphery of the motor housing in such a manner that the cylindrical portions are oriented parallel to a rotation axis.

The application provides a highly energy efficient circuit for an AC ceiling fan motor in high speed gear, which comprises a speed regulator and a ceiling fan motor whose output torque at full voltage exceeds a required torque at rated load, wherein two ends of a winding of the ceiling fan motor are connected to a voltage-regulating capacitor bank and a zero line, respectively, the voltage-regulating capacitor bank comprises a first capacitor bank for enabling low speed operation of the ceiling fan motor by stepping down by a capacitor C3, a second capacitor bank for enabling medium speed operation of the ceiling fan motor by stepping down by a capacitor C2 and the capacitor C3 in parallel, and a third capacitor bank for enabling high speed operation of the ceiling fan motor by stepping down by a capacitor C1, the capacitor C2 and the capacitor C3 in parallel to improve energy efficiency to enable the ceiling fan motor to operate efficiently, the speed regulator comprises a shift switch whose input end is connected to a live wire, the speed regulator adjusts the voltage of the ceiling fan motor by switching to the first capacitor bank, the second capacitor bank or the third capacitor bank through the shift switch. The present application improves the working efficiency and performance of the ceiling fan motor, reduces the energy consumption required for the operation of the ceiling fan motor, which follows the trend of energy conservation and emission reduction, and is suitable for promotion and application.