A transformer includes a primary winding and a secondary winding, which are flat, and a magnetic core that has a middle leg that passes through the primary and secondary windings, a first core that is connected to one end along the length direction of the middle leg, and a second core that is connected to the other end along the length direction. A first wall surface on the side of the first core where the middle leg is positioned and a second wall surface on the side of the second core which faces the first wall surface are formed so as to be parallel, the primary winding is fixed to the first wall surface, the secondary winding is fixed to the second wall surface, and the distance between the primary winding and the secondary winding is kept constant.

The disclosed current-distribution inductor may include (1) a magnetic core and (2) a conductor electrically coupled between a power source and an electrical component of a circuit board, wherein the conductor comprises (A) a bend that passes through the magnetic core and (B) a flying lead that extends from the bend to the electrical component of the circuit board and runs parallel with the circuit board. Various other apparatuses, systems, and methods are also disclosed.

A power semiconductor system includes: a power stage module having one or more power transistor dies attached to or embedded in a first printed circuit board; and an inductor module attached to the power stage module and having an inductor electrically connected to an output node of the power stage module. The inductor includes windings patterned into a second printed circuit board of the inductor module.

A magnetic device includes a magnetic core assembly, a first secondary winding, a second secondary winding and a primary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The first to third magnetic legs are arranged in sequence. The second magnetic leg is disposed between the first magnetic leg and the third magnetic leg. The first secondary winding is disposed between the first magnetic leg and the second magnetic leg, and the second secondary winding is disposed between the second magnetic leg and the third magnetic leg. A first terminal of the primary winding is disposed between the first magnetic leg and the second magnetic leg, and a second terminal of the primary winding is disposed between the second magnetic leg and the third magnetic leg.

This application provides an electrical element, a circuit board, and a switching power supply. The electrical element includes a first magnetic core and a second magnetic core disposed opposite to each other. The first magnetic core and the second magnetic core enclose space for accommodating a winding. The first magnetic core and the second magnetic core are further configured to bind a magnetic induction wire. The electrical element further includes a third magnetic core located in the space enclosed by the first magnetic core and the second magnetic core. The third magnetic core is configured to wind the winding. The third magnetic core is fixedly connected to the first magnetic core and the second magnetic core. An air gap is disposed in at least one of the first magnetic core and/or the second magnetic core.

An electric module with a planar transformer has a housing with an interior having an internal length and an internal height. The electric module additionally has a main printed circuit board with a first thickness, the main printed circuit board being equipped with at least one electronic component. The planar transformer is arranged on an additional printed circuit board with a second thickness, and the main printed circuit board has a recess which receives the additional printed circuit board. Additionally, the main printed circuit board and the additional printed circuit board are connected together via a connection.

A connection structure of an inductive element includes a circuit substrate, in inductive element, at least one connection wire, a supporting element, a containing element, a positioning element, a connecting element, and a locking element. The circuit substrate has a through hole. Each connection wire has a first end connected to the inductive element, and a fixed terminal is disposed on a second end of the connection wire. The containing element is formed on the supporting element to provide a containing space. The positioning element is contained in the containing space, and provides a positioning part. The connecting element has a first connecting part and a second connecting part. The first connecting part is connected to the positioning part to clip the fixed terminal. The locking element has a locking part. The locking part is connected to the second connecting part to lock on the circuit substrate.

The invention, which relates to the technical field of circuit boards, specifically discloses a method for manufacturing an embedded circuit board, an embedded circuit board, and an application thereof. The method includes: providing a substrate, wherein an electronic component is embedded in the substrate, a pad is arranged on a side surface of the electronic component, and an end surface of the pad is flush with a same side surface of the substrate; forming a metallic layer on a side surface of the substrate adjacent to the pad by sputtering, evaporation, electroplating or chemical vapor deposition; and patterning the metallic layer to obtain a circuit board covered with the metallic layer on the pad, wherein the metallic layer on the pad protrudes beyond the same side surface of the substrate.

An inductor with the special-shaped structure includes an inductor main body and a pair of supporting legs fixed below the inductor main body, wherein the pair of supporting legs is conductors and is electrically connected to a pair of electrodes of the inductor main body, and the pair of supporting legs is configured to support the inductor main body during installation, so that a gap space is left below the inductor main body. Due to the unique structural design of the inductor in the present invention, the utilization ratio of the area of the PCB can be effectively increased, and the inductor is particularly suitable for very-high-density component installation on the PCB during power application. Moreover, by changing relative positions of the supporting legs, lower cavities with different sizes may be formed below the inductor main body, thereby facilitating optimal design for meeting different demands.

A magnetic component in a power conversion device includes a bobbin that has a rod-shaped central portion and holds a core and a winding member. The central portion of the bobbin is configured to protrude from the winding member by a predetermined length and to come into contact with a cooling member in a state of being inserted into the winding member to penetrate the core having an annular shape. A filler is filled between the winding member and the cooling member in a state where the central portion comes into contact with the cooling member.