A magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first outer magnetic leg, a second outer magnetic leg, a first inner magnetic leg group and a second inner magnetic leg group. A first channel is formed between the first inner magnetic leg group and the first outer magnetic leg. A second channel is formed between the second inner magnetic leg group and the first inner magnetic leg group. A third channel is formed between the second inner magnetic leg group and the second outer magnetic leg. The winding assembly includes four coupled windings. The first terminals of the four coupled windings are located near a first lateral side of the magnetic core assembly. The second terminals of the four coupled windings are located near a second lateral side of the magnetic core assembly.

A magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first outer magnetic leg, a second outer magnetic leg, a first inner magnetic leg group and a second inner magnetic leg group. A first channel is formed between the first inner magnetic leg group and the first outer magnetic leg. A second channel is formed between the second inner magnetic leg group and the first inner magnetic leg group. A third channel is formed between the second inner magnetic leg group and the second outer magnetic leg. The winding assembly includes four coupled windings. The first terminals of the four coupled windings are located near a first lateral side of the magnetic core assembly. The second terminals of the four coupled windings are located near a second lateral side of the magnetic core assembly.

The first core includes a main body part extending in a first direction along a main surface of the substrate, a first foot part extending from the main body part to the second core through the substrate, and a second foot part extending from the main body part to the second core through the substrate at a position at which the coil conductor is sandwiched between itself and the first foot part in the first direction, and the insulating member includes a bottom wall part interposed between at least the first foot part and the second core, and a side wall part extending along at least either of the first foot part and the second foot part and interposed between either of the foot parts and the coil conductor.

An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

A layered electronic component includes a multilayer body having a metallic magnetic material layer including metallic magnetic material particles and a coil being built in the multilayer body. The coil is formed of multiple conductor patterns spirally connected each other and stacked along an axis direction of the coil, and the multilayer body includes a nonmagnetic ferrite part arranged at least an inner area of the coil when viewed from a winding axis direction of the coil.

A layered electronic component includes a multilayer body having a metallic magnetic material layer including metallic magnetic material particles and a coil being built in the multilayer body. The coil is formed of multiple conductor patterns spirally connected each other and stacked along an axis direction of the coil, and the multilayer body includes a nonmagnetic ferrite part arranged at least an inner area of the coil when viewed from a winding axis direction of the coil.

A coil is disposed in an element body such that a gap between the coil and a first principal surface is larger than a gap between the coil and a second principal surface, and has a coil axis along a direction intersecting with a direction in which the first principal surface and the second principal surface oppose each other. A terminal electrode is disposed on the element body such that at least a part of the first principal surface and a part of the second principal surface are exposed. The coil includes a plurality of coil conductors separated from each other in a direction along the coil axis and a through-hole conductor connecting the coil conductors adjacent to each other in the direction along the coil axis. The through-hole conductor does not overlap the plurality of terminal electrodes when viewed from the direction along the coil axis.

A coil is disposed in an element body such that a gap between the coil and a first principal surface is larger than a gap between the coil and a second principal surface, and has a coil axis along a direction intersecting with a direction in which the first principal surface and the second principal surface oppose each other. A terminal electrode is disposed on the element body such that at least a part of the first principal surface and a part of the second principal surface are exposed. The coil includes a plurality of coil conductors separated from each other in a direction along the coil axis and a through-hole conductor connecting the coil conductors adjacent to each other in the direction along the coil axis. The through-hole conductor does not overlap the plurality of terminal electrodes when viewed from the direction along the coil axis.

An iron core structure in a transformer which can show different leakage inductance values between primary and secondary windings includes an iron core, and the primary and secondary windings. A first core member of the iron core includes first and second side legs on either side of a first center leg, a second core member butted against the first includes third and fourth side legs on either side of a second center leg. The primary winding is arranged on the center leg, and the secondary winding is arranged on the side legs. The first and third side legs define a gap therebetween, there is a second gap defined between second and fourth side legs. Effective magnetic resistance of the side legs is increased, the primary and secondary windings show different leakage inductance values, and can meet diversified needs of power stage control circuits.

Disclosed herein is an improved flyback converter that separates the magnetic components of the converter into a transformer and a separate, discrete energy storage inductor. This arrangement can improve the operating efficiency of the converter by reducing the commutation losses as compared to a conventional flyback converter. The magnetic components may be constructed on separate magnetic cores or may be constructed on magnetic cores having at least one common element, thereby allowing for at least partial magnetic flux cancellation in a portion of the core, reducing core losses.