A magnetic device for processing biological objects including a soft magnetic center pole having a bottom end and a tapered tip end; first and second soft magnetic side poles disposed on opposite sides of the soft magnetic center pole and respectively having first and second bottom ends, the first and second soft magnetic side poles respectively having first and second top ends that bend inward toward the soft magnetic center pole with a first outward side of the first top end and a second outward side of the second top end being substantially coplanar; a magnetic flux source generating magnetic flux in the soft magnetic center pole and the first and second soft magnetic side poles; and a channel plate having a channel embedded therein and a first planar surface that is operable to be in contact with or in close proximity to the first and second outward sides.

A shielded inductor and a method of making a shielded inductor are provided. The shielded inductor includes a core body surrounding a conductive coil, leads in electrical communication with the coil, and a shield covering at least parts of the outer surface of the core body. An insulating material may be provided between parts of the core body and parts of the shield. A method of making a shielded inductor is also provided.

A coil module includes a coil conductor including a plurality of coil elements and a plurality of wire electrodes disposed on a circuit board, each of the plurality of coil elements including a pair of leg portions and a bridge portion connecting one end portions of the pair of leg portions together, the plurality of coil elements being disposed to cross a winding axis. A method for manufacturing the coil module includes an assembly forming step of integrating the plurality of coil elements with resin to form a coil element assembly, and a conductor forming step of mounting the coil element assembly on the circuit board to complete the coil conductor wound about the winding axis. In the conductor forming step, the resin is introduced into a die set in which the plurality of coil elements are arranged to form a block, to thus form the coil element assembly.

A method for manufacturing a ferrite sheet is provided. A method for manufacturing a ferrite sheet comprises the steps of: preparing a ferrite block body having a shape of a cylindrical or polygonal column; and cutting the ferrite block body to be separated into plate-shaped sheets having a predetermined thickness.

An electropermanent magnet array is provided. The electropermanent magnet array includes one or more of a plurality of electropermanent magnets, arranged in a parallel fashion, a plurality of switching circuits, each switching circuit coupled to a different electropermanent magnet of the plurality of electropermanent magnets, and a control circuit, coupled to the plurality of switching circuits. The control circuit is configured to receive commands to control the plurality of switching circuits to demagnetize the plurality of electropermanent magnets, magnetize the plurality of electropermanent magnets to produce a first magnetic field with a strength and an attraction distance and magnetize the plurality of electropermanent magnets to produce a second magnetic field with a lower strength and greater attraction distance than the first magnetic field.

An electropermanent magnet array is provided. The electropermanent magnet array includes one or more of a plurality of electropermanent magnets, arranged in a parallel fashion, a plurality of switching circuits, each switching circuit coupled to a different electropermanent magnet of the plurality of electropermanent magnets, and a control circuit, coupled to the plurality of switching circuits. The control circuit is configured to receive commands to control the plurality of switching circuits to demagnetize the plurality of electropermanent magnets, magnetize the plurality of electropermanent magnets to produce a first magnetic field with a strength and an attraction distance and magnetize the plurality of electropermanent magnets to produce a second magnetic field with a lower strength and greater attraction distance than the first magnetic field.

A switching element (100) that comprises a switching unit (30), a first and a second coil unit (10, 20) for closing and opening the switching unit (30), wherein the first coil unit (10) comprises a first coil (12) and wherein the second coil unit (20) comprises a second coil (22). According to the invention, the first coil unit (10) comprises a first controllable delay circuit (14) that is connected in series with the first coil (12). The invention further relates to a switching device (200) that comprises a switching element (100) according to the invention. The invention further relates to a first and a second method for the operation of the switching device (200) according to the invention.

An elastic body of this disclosure contains magnetized magnetic powder dispersed in an elastic member, and generates an induced current in a circuit by undergoing an elastic deformation to cause a change in magnetic flux density. The elastic member is an elastomeric foam.

A thermoelectric safety assembly that includes a thermocouple configured to detect a flame in a burner and, in response to detecting the flame, generating an electrical voltage. The assembly includes an electromagnetic valve electrically connected to the thermocouple, and a transistor electrically connected between the thermocouple and the electromagnetic valve. The electromagnetic valve is arranged electrically connected with a field-effect transistor. The assembly also includes a voltage booster configured to power the transistor, the transistor being connected in parallel with the voltage booster. An output terminal of the voltage booster is arranged connected with a gate terminal of the transistor, the voltage booster being configured to boost the electrical voltage generated in the thermocouple, an electrical voltage being obtained that is capable of keeping the transistor closed such that the electromagnetic valve is energized.

An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.