Abstract: A linear power supply is used for supplying a voltage to an electronic device to drive the electronic device. The linear power supply includes a casing having a containing space disposed therein and at least one heat dissipating portion, and the containing space includes a circular coil and a circuit board electrically connected to the circular coil. With the foregoing measures, the linear power supply of the invention is lighter in weight, smaller in size, and better in heat dissipation than the prior art power supply that employs a silicon steel core.

Abstract: A circular coil accessory coiling stand includes two insulating covers and a wire end stator designed as independent components. The wire end stator is detachably installed onto an external surface of the insulating cover, so that the wire end stator can serve as a fixture for the starting wire of the coil and a basis of jumping wire for the automatic coiling during a coiling process. If the height of the coiled wire is smaller than that of the wire end stator after the coiling operation is completed, the wire end stator can be removed from the insulating cover to overcome the drawback of wasting time on cutting the wire end stator exposed from the coiled wire, if the height of the coiled wire is smaller than the height of the wire end stator, and prevent a wrong cutting of the coiled wire or a scratch of the coiled wire.

Abstract: A voltage regulator having insert slots adopted for used on extension lines to stabilize electric current comprises a body which has an upper shell and a lower shell. The body is divided in a socket zone and a voltage stabilizing zone which houses an annular transformer. The voltage stabilizing zone is directly connected to input current. The annular voltage transformer can rapidly adjusts and achieves stable voltage according to voltage fluctuations of input current and different loading properties of the socket zone, and the annular voltage transformer is formed in a small size and a light weight to allow the voltage regulator to be made in slim and light.

Abstract: A voltage regulator having insert slots adopted for used on extension lines to stabilize electric current comprises a body which has an upper shell and a lower shell. The body is divided in a socket zone and a voltage stabilizing zone which houses an annular transformer. The voltage stabilizing zone is directly connected to input current. The annular voltage transformer can rapidly adjusts and achieves stable voltage according to voltage fluctuations of input current and different loading properties of the socket zone, and the annular voltage transformer is formed in a small size and a light weight to allow the voltage regulator to be made in slim and light.

Abstract: An automatic iron core air gap cutting apparatus includes an electronic control box and a transmission system to receive signals and control from the electronic control box for receiving finished iron cores to perform air gaps cutting operations. The completed iron cores with the air gaps formed thereon are pushed to an exit chute for packaging, thereby completing the automatic iron core fabrication process.

Abstract: A structure of UPS comprises a case having an opening over which is mounted a cover. A fastening slot is provided on an inner side of the case proximate to the opening. Two outer lateral sides of the case further include a plurality of heat dissipating elements. The cover further includes at least a fastening projection corresponding to the fastening slot. The cover thereby detachably assembles with the case to enable a change of internal components of the UPS. The structure of the UPS further comprises an annular voltage transformer having a reduced size, the general size of the UPS is thereby reduced to allow convenient carrying and easy mounting in a reduced mounting space.

Abstract: A structure of UPS comprises a case having an opening over which is mounted a cover. A fastening slot is provided on an inner side of the case proximate to the opening. Two outer lateral sides of the case further include a plurality of heat dissipating elements. The cover further includes at least a fastening projection corresponding to the fastening slot. The cover thereby detachably assembles with the case to enable a change of internal components of the UPS. The structure of the UPS further comprises an annular voltage transformer having a reduced size, the general size of the UPS is thereby reduced to allow convenient carrying and easy mounting in a reduced mounting space.

Abstract: A winding insulation structure for shrouding an iron core of coils or coil sets of various stages to provide desired insulation effect includes an inner tube located in an inner annular ring of the iron core or coil sets of various stages, and two elastic caps symmetrically located on two axial sides of the iron core or coil sets of various stages. The inner tube and the two caps can shroud the iron core or coil sets of various stages closely to achieve better insulation effect. The insulation structure also may be assembled rapidly for the annular coils.

Abstract: An automatic iron core air gap cutting apparatus includes an electronic control box and a transmission system to receive signals and control from the electronic control box for receiving finished iron cores to perform air gaps cutting operations. The completed iron cores with the air gaps formed thereon are pushed to an exit chute for packaging and proceeding the follow on processes, thereby to form an automatic iron core fabrication processing.