Abstract: A motor incorporates a rotor 21 incorporating a cylindrical magnet 24 which has segments magnetized at predetermined pitches in a circumferential direction thereof; and a stator 25 for imparting a rotating magnetic field to the magnet 24 so as to rotate the rotor 21. Each of the magnetized segments is magnetized such that the inner portion and the outer portion are magnetized to different polarities and the magnetized segments disposed at adjacent pitches are magnetized to opposite polarities. The stator 25 incorporates a first polar tooth row and a second polar tooth row each of which is constituted by polar teeth corresponding to the predetermined pitches of the magnetized segments such that the polar teeth disposed opposite to the magnetized segments across the magnet are magnetize to different polarities, and the polarities of the first polar tooth row and the second polar tooth row are switched so that a rotating magnetic field is imparted to the cylindrical magnet 24.

Abstract: A method of manufacturing a motor comprises the steps of punching intermediary products of stator cores out of steel bands along profile lines with the intermediary products partly connected to the steel bands, forming wire winding frames of synthetic resin around magnetic core pieces of the intermediary products of stator cores as integral parts thereof, separating the intermediary products of stator cores carrying integrally formed wire winding frames from the steel bands, winding wires around the wire winding frames to form excitation coils and assembling the stator cores and the rotors in a case so that the magnetic pole pieces are juxtaposed with said rotors. With such a method, wire winding frames are formed around magnetic pole pieces of a plurality of intermediary products for stator cores produced by punching as integral parts. Thereafter, a set of intermediary products are separated to produce an independent stator core assembly.

Abstract: An oscillator and frequency divider provide a plurality of different frequency signals in response to any indication of vehicle abnormality. A plurality of switches indicate vehicle status such as a door, ignition and the like. A gate circuit having a plurality of gates passes one of said frequency signals at any one time in response to the particular vehicle abnormality indicated by a control circuit responsive to the switches. An alarm signal is generated having a frequency that is a function of the signal passed through the gate circuit.

Abstract: A flashing lamp circuit, having a first transistor in circuit with a lamp and power supply, provides intermittent flashing by intermittently turning the transistor on and off in response to an on-off input signal. The transistor is protected against surge currents when the lamp short-circuits by monitoring the lamp voltage and turning the first transistor off when the lamp voltage drops below a predetermined amount for a given period during which the on-off signal is on.