There is provided a magnetic core component and the gap control method thereof. The magnetic core component includes a first magnetic component, a second magnetic component and a first gap control structure disposed therebetween. The first gap control structure includes thixotropic material and is applied on the first magnetic component and is cured, the second magnetic component is disposed on the cured first gap control structure, and a gap between the first magnetic component and the second magnetic component is controlled by an effective height of the first gap control structure. The gap control structure has minimum variability after it is cured, and its effective height can be always kept at a required gap height.

A multipole permanent magnet may be provided with a magnetic-field shunt. The multipole permanent magnet may be formed from compression-molded magnetic particles such as magnetically anisotropic rare-earth particles in an elastomeric polymer. The magnetic-field shunt may be formed from magnetic members in a polymer binder that are separated by gaps to allow the shunt to flex or from magnetic particles in a polymer binder. The magnetic particles in the polymer binder may be ferrite particles or other magnetic particles. The polymer binder may be formed from an elastomeric material and may be integral with the elastomeric polymer of the multipole permanent magnet or separated from the elastomeric polymer of the multipole permanent magnet by a polymer separator layer. Conductive particles may be formed in polymer such as the elastomeric polymer with the magnetic particles. The conductive particles may be configured to form electrical connector contacts and other signal paths.

A multipole permanent magnet may be provided with a magnetic-field shunt. The multipole permanent magnet may be formed from compression-molded magnetic particles such as magnetically anisotropic rare-earth particles in an elastomeric polymer. The magnetic-field shunt may be formed from magnetic members in a polymer binder that are separated by gaps to allow the shunt to flex or from magnetic particles in a polymer binder. The magnetic particles in the polymer binder may be ferrite particles or other magnetic particles. The polymer binder may be formed from an elastomeric material and may be integral with the elastomeric polymer of the multipole permanent magnet or separated from the elastomeric polymer of the multipole permanent magnet by a polymer separator layer. Conductive particles may be formed in polymer such as the elastomeric polymer with the magnetic particles. The conductive particles may be configured to form electrical connector contacts and other signal paths.

A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.

This disclosure is related to the technical field of magnets, and in particular to a method for applying a coupled inductor to a DC-DC converter providing a DC current output, and based on the number of phases of the DC-DC converter, the coupled inductor is designed to have a corresponding number of windings, the windings are reversely coupled to cancel out the magnetizing fields to avoid flux saturation of the magnet material under high current excitation, and the coupled inductor has air gaps, the leakage flux in the air gap induced by each winding is in the same direction, the leakage magnetic flux is used to achieve the filtering of the output current.

An electronic component includes a wire winding wound around a central axis. The wire winding having first and second ends, and first and second terminals are connected to or formed by the first and second ends. The terminals provide electrical contacts for connecting the component into a circuit. The component has a wet press molded body made of a mixture of magnetic and non-magnetic material that is heated and pressed about the wire winding. The wet press molded body leaves at least a portion of the terminals exposed for mounting the component to the circuit.

The application discloses a filter-choke to be used in an EMI filter that includes a closed magnetic core having two core-legs, wherein the magnetic core is configured to be assembled out of at least two core-segments, at least two bobbins, each bobbin having a base flange and a tubular section extending in perpendicular direction from the base flange, wherein the tubular section has an opening for receiving one of the two core-legs, and a coil formed by an electric conductor having multiple windings arranged around the tubular section of each bobbin.

Provided is a transformer (1), which includes: a core (10) which forms a magnetic circuit and has a middle leg (10a) and a plurality of side legs (10b, 10c) branched from the middle leg (10a); primary windings (11) respectively wound around a first winding leg (10a) and a second winding leg (10b), which are selected from the middle leg (10a) and the side legs (10b, 10c); and a secondary winding (12) wound around either of the first winding leg (10a) or the second winding leg (10b), wherein a first magnetic flux generated by the primary windings (11) from the first winding leg (10a) and a second magnetic flux generated by the primary windings (11) from the second winding leg (10b) differ from each other by a predetermined value or more at a position at which the fluxes do not intersect with the secondary winding (12).

A transformer includes an outer peripheral iron core, and at least three iron core coils, which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils each include an iron core, and at least one of a primary coil and a secondary coil, which are wound around the iron core. Gaps, which can be magnetically coupled, are formed between two adjacent ones of the at least three iron cores, or between the at least three iron cores and a central iron core positioned at the center of the outer peripheral iron core.

A coil component includes two or more coils configuring a common mode choke coil and functions as an inductor against a normal mode AC current. A coil component includes a pot-type core formed in a box-like shape, a flat plate core, coils, and a partition core formed of a magnetic substance. The coils are accommodated inside the pot-type core and form a common mode choke coil by making the central axes thereof substantially match each other. Further, each of end portions of the coils function as outer electrodes. The partition core is provided between the coils.