Abstract: A printed circuit board 6, a stator core 8, an AC power source connector 14, a step-down circuit 15, a rectifier circuit 16, and a control circuit 18 are molded into one piece using a molding material 20 to form a stator. A rotor 9 is placed on the stator core 8. DC high voltage from the rectifier circuit 16 is supplied directly to stator coils 7 as a driving power source, and DC low voltage from the step-down circuit is supplied to the control circuit as a control power source.

Abstract: Printed circuit board 6, stator core 8, AC power source connector 14, step-down circuit 15, rectifier circuit 16, and control circuit 18 are molded into one piece using molding material 20 to form a stator. Rotor 9 is placed in stator core 8. DC high voltage from rectifier circuit 16 is supplied directly to stator coils 7 as a driving power source and DC low voltage from the step-down circuit is supplied to the control circuit as a control power source.

Abstract: In a main controller for use in an air conditioner for controlling temperature/humidity of an intaken outside air, a controlling line setter (18) sets each of control lines (J.sub.1 -J.sub.5) on a psychrometric chart table (13), in which an aimed temperature/humidity line (Lo) is formed by connecting an upper limit state point (Ps) and a lower limit state point (Pw) of condition air from each of the outside air state points (G.sub.1 -G.sub.5) to the aimed temperature/humidity line (Lo). The controlling line (J.sub.1 -J.sub.5) is formed by connecting necessary lines selected from a main heating line (H.sub.L) showing the heating operation of a main heater (H), an adiabatic humidifying line (W.sub.L) showing the humidifying operation of an adiabatic humidifying device (W), a cooling line (C.sub.L) showing the cooling operation of a cooler (C) and an auxiliary heating line (RH.sub.