Abstract: An electromagnetic relay includes a base, an electromagnet block mounted on an upper surface of the base, a movable iron piece configured to be rotatable based on excitation and non-excitation of the electromagnet block, a movable contact piece configured to be rotatable integrally with the movable iron piece, a movable contact fixed to a free end portion of the movable contact piece, and a fixed contact fixed to a fixed contact terminal, and disposed so as to be separable from and contacted with the movable contact along with rotation of the movable contact piece. A permanent magnet configured to induce an arc generated between the movable contact and the fixed contact in a predetermined direction is housed in a recessed portion formed on a lower surface of the base in a direction toward a side opposite to the movable contact as viewed from the fixed contact terminal.

Abstract: Provided is an electronic watch which achieves a highest-speed fast-forward operation of a step motor based on various environments under which the watch is placed, and enables low-power driving.

Abstract: An electromagnetic contactor with connecting spring including: a movable core contact plate section that is inserted into a through hole formed in a movable core and comes into contact with a contact support side of the through hole; and a pair of curved plate sections each joined to either end of the movable core contact plate section and housed in connecting spring tip housing sections formed in the contact support, the sides of which opposite to a contact surface of the movable core contact plate section come into contact with the connecting spring tip housing sections. In the movable core contact plate section, a depressed section is formed in a direction crossing a longitudinal direction to bulge out to an opposite side to the contact support side is formed, and contact sections that come into contact with the through hole are formed on both ends of the depressed section.

Abstract: A permanent magnet drive on-load tap-changing switch including a changing switch circuit that includes structurally identical odd- and even-numbered tap-changing circuits. The circuits include working contactors and dual-contact synchronous transition contactors made of primary and secondary contactors. The contactors each face directly a moving contactor, which are connected in parallel. A permanent magnet is fixed on each moving contactor and face directly on the other extremity thereof a moving contactor driving mechanism. The mechanism changes a force applied to the magnets, allowing the moving contactors to come into contact with or be separated from the working and transition contactors, thus implementing changeover from one tap to another tap. The switch is structurally simple and convenient to use, obviates the need for a high-speed mechanism, implements changing by the direct actions of the contactors, operates at high speed and reliably, and has a low failure rate and an extended service life.

Abstract: A superconductive electromagnet according to an embodiment includes a pair of main coils that have an annular shape, a pair of magnetic poles that are arranged on an inner peripheral side of the main coils, and that respectively have opposing surfaces which are planes opposing each other while being separated from each other in an axial direction of the main coils, and a pair of correction coils that are arranged between a pair of the magnetic poles. In this manner, density of a magnetic flux generated by the main coils is corrected by density of a magnetic flux generated by the correction coils. Accordingly, it is possible to realize improved uniformity in the density of the magnetic flux in a beam duct inside a deflection electromagnet.

Abstract: A cover for magnetizing a shaft of a tissue-penetrating medical device is disclosed including a sleeve member having a hollow body to form a protective closure over the shaft of the tissue-penetrating medical device. The proximal end of the hollow body provides a receiving space for receiving the shaft of the tissue-penetrating medical device. One or more magnet is disposed on the sleeve member. A magnetic shield composed of one or more shielding materials associated with the cover that minimizes any effects to the clinical environment from magnetic fields generated within the cover. Medical devices and methods of magnetizing the shaft of a tissue-penetrating medical device using the cover are also disclosed.

Abstract: A latching electromechanical RF switch is formed with an RF switch cavity having at least one inlet port and at least one outlet ports having switch contacts. A leaf contact member moveable between a first contact position connecting the switch contacts and a second position spaced from the switch contacts. A solenoid mounted in the cavity. A housing is formed with a hollow passage. An intermediate permanent magnet provided within the housing. A connecting member assembly is moveable within the hollow passage. The contact leaf member is connected to one end with a permanent magnet provided at another end of the connecting member. The intermediate magnet attracts and retains the permanent magnet and the contact leaf member in the first contact position. Upon reaching the first contact position electric current supply to the solenoid is terminated.

Abstract: An electromagnetic relay includes: a base; a pair of fixed contact terminals, each including a fixed contact and a first fulcrum fixed to the base; a movable contact spring including a pair of movable pieces, each of the movable pieces including a movable contact contacting and separating from the fixed contact; an armature that is coupled with the movable contact spring, by a rotary motion around a second fulcrum; an electromagnetic device that drives the armature; and a permanent magnet arranged between the pair of fixed contact terminals and between the pair of movable pieces to generate a magnetic field. The first fulcrum and the second fulcrum are arranged mutually in opposite directions with respect to the movable contact or the fixed contact.

Abstract: A motor control unit is provided that controls a motor with multi-system windings via motor driving circuits on winding systems based on a current command value including current detecting circuits to detect at least two-phase or more currents for each of the multi-system windings of the three-phase motor, three-phase/two-phase converting sections to convert the detected phase currents to two-phase currents for the multi-system windings, and a failure diagnosing section to perform a current-calculation of the two-phase currents converted to two-phase for the multi-system windings, and to perform a diagnosis failure by comparing a difference of current-calculated results between the multi-system windings and an accumulating value of the difference with respective thresholds.

Abstract: A magnetic flux control device according to the exemplary embodiment includes: a pole piece assembly which is provided with an N pole piece and an S pole piece which are formed with first surfaces and second surfaces and made of a ferromagnetic material, and a permanent magnet which is disposed such that an N-pole is in contact with the N pole piece and an S-pole is in contact with the S pole piece; a first outer pole piece, a second outer pole piece, and a base pole piece which are formed with first surfaces and second surfaces and made of a ferromagnetic material; a coil which is wound around at least one of the N pole piece, the S pole piece, the first outer pole piece, the second outer pole piece, and the base pole piece; and a control unit which controls electric current to be applied to the coil.

Abstract: A motor controller for an electric motor is described. The motor controller is coupled to a power line communication connection and includes a communication device coupled to a memory device. The motor controller is configured to receive, using the communication device, a status query from a server computing device via the power line communication connection. The motor controller is additionally configured to transmit electric motor diagnostic data from the memory device to the server computing device via the power line communication connection. The motor controller is further configured to receive motor configuration data from a client computing device wirelessly coupled to the motor controller. The motor configuration data is for controlling the electric motor. The motor controller is also configured to operate the electric motor in accordance with the motor configuration data.

Abstract: An actuator for a vehicle transmission system, comprising: an electrical machine comprising an armature and an inductor, a static converter comprising a plurality of commutation cells, the static converter being arranged so as to electrically connect the electrical circuit of the armature to an electrical energy source, and a system for controlling the commutation cells of the static converter, said system being configured so that the torque constant of the electrical machine can assume at least two different values depending on the control applied to said cells.

Abstract: A motor control system is provided for compensating disturbance. The system includes a controller that supplies an input voltage to a motor based on the difference between a current command value to a motor and an actual current of the motor. A motor modeling part outputs a motor output current based on an input voltage from the controller and a disturbance observation part is formed as a reverse model of the motor modeling part to remove current noise using a current differentiation filtering method. Additionally, a disturbance compensation amount determination part determines a disturbance compensation amount based on the disturbance estimated by the disturbance observation part.

Abstract: A bistable electromagnetic actuator device, a permanent magnet means (12; 12a, 12b), as well as an armature unit (18) with an elongate plunger unit (10) extending along a moving direction, wherein said armature unit can be moved into at least one of two end and/or stop positions that are stable in the deenergized state by means of stationary electromagnetic driving means (22), wherein stationary magnetic field detector means (34; 34a, 34b) are assigned to a housing (20), which at least sectionally encloses the armature unit, for the contactless interaction with the permanent magnet means in at least one of the end or stop positions provided for the armature position detection, wherein the plunger unit features a terminal contact and/or engagement section (28) for interacting with an actuating partner in a contacting and non-positive fashion such that a non-positive contact and/or actuation by the actuating partner causes a motion of the armature unit into one of the end or stop positions, in which the armatur

Abstract: A magnetic reed switch, including: an insulating casing, magnetic reeds, and at least one flexible element. The insulating casing is a hollow structure. The magnetic reeds are disposed inside and at two ends of the insulating casing, respectively. Ends of the magnetic reeds overlap. The at least one flexible element is an electrically conductive material and is disposed on at least one magnetic reed. The at least one flexible element is connected in parallel to two ends of the magnetic reeds.

Abstract: A power delivery system utilizing an array of electric generators connected to an array of electric drive motors, which in turn are connected to loads of varying power demand, the generators configured to turn on and off to match the loads of varying power demands. The electric generators may be connected to an array of engines, each engine configured to run at peak efficiency. As load demands change, the engines turn on and off to meet the load demands. The engines and electrical generators may also connect to a battery to maintain the battery charge in response to demands on the battery by the electric drive motor array.

Abstract: An absolute encoder includes a scale having a sequence of marks, a detector configured to detect a signal corresponding to a plurality of marks of the scale, and a processor configured to obtain an absolute position corresponding to the signal. The processor is configured to select code sequences, from a group of code sequences corresponding to absolute positions, as a candidate group for a code sequence corresponding to the signal, and to select the code sequence corresponding to the signal from the candidate group.

Abstract: A haptic actuator having a base structure, a beam rotatably attached to the base structure by an axial member, a first coil portion, and a second coil portion is presented. The beam has a first end that includes a first magnet with magnetic poles having a first polarity, and a second end that includes a second magnet with magnetic poles having a second, opposite polarity. The first coil portion and the second coil portion are configured to generate magnetic field lines. The magnetic poles of the first magnet and the magnetic poles of the second magnet are aligned to be parallel with a central axis of the first coil portion or the second coil portion when the beam is in an equilibrium position. The beam is configured to rotate via the axial member in response to electrical current being passed through the first coil portion or the second coil portion.

Abstract: The present invention refers to a cover (17) of a contactor (1) of a starter for motor vehicle, comprising —a plastic portion (18) delimiting a contact chamber (15) volume, —two plugs (43, 45) in an electrical conductor material which cross the plastic portion, each of the two plugs (43, 45) having an end in the contact chamber (15), —a seal (37) which is arranged on the plastic portion (18) to isolate the contact chamber (15) when the cover (17) is assembled with a coil casing (5) of the contactor (1), the seal (37) being assembled in a fixed manner to the cover (17).

Abstract: Unique systems, methods, techniques and apparatuses of a fault detection system are disclosed herein. One exemplary embodiment is a fault detection system comprising a protected device including a DC bus structured to receive AC power and provide AC power; a DC bus sensor structured to measure an electrical characteristic of the DC bus; at least one input sensor structured to measure an electrical characteristic of the AC power received by the protected device; at least one output sensor structured to measure the electrical characteristic of the AC power provided by the protected device; and a monitoring device configured to receive measurements from the DC bus sensor, at least one input sensor, at least one output sensor and determine the existence of a fault condition which originates within the protected device using the measurements of the DC bus sensor, at least one input sensor, and at least one output sensor.