Provided is a reactor including a coil that has wound portions formed by winding a winding wire, and a magnetic core that includes inner core portions arranged inside of the wound portions and outer core portions arranged outside of the wound portions. The reactor includes an outer resin portion covering at least outer surfaces of the outer core portions. A terminal platform is formed in one piece protruding on the outer surface of an outer resin portion among the outer resin portions and has fastening portions configured to fasten terminal fittings connected to end portions of the winding wire to terminals of an external wiring. A fixing portion is formed in one piece on the terminal platform and fixes the reactor to an installation target. The terminal platform and the fixing portion are integrated and the thickness of the terminal platform is less than that of the fixing portion.

A reactor includes a coil that has unit coils. Spacers are disposed in (i) at least one of spaces between the unit coils adjacent to each other in the central axis direction and (ii) a space between each of the support frames and the unit coil. Bolts penetrate the support frame and the spacers, and the spacers are fixed to the bolts The bolts include fitting portions to be fitted to one of the spacers on a notch or a through hole formed in a projection part of the spacer.

A reactor includes a coil that has unit coils. Spacers are disposed in (i) at least one of spaces between the unit coils adjacent to each other in the central axis direction and (ii) a space between each of the support frames and the unit coil. Bolts penetrate the support frame and the spacers, and the spacers are fixed to the bolts The bolts include fitting portions to be fitted to one of the spacers on a notch or a through hole formed in a projection part of the spacer.

This reactor comprises a coil having a first winding part, and a magnetic core, wherein the magnetic core includes a middle core, a first end core, a second end core, a first side core, and a second side core, wherein: the first end core includes a first outer surface at a position separated from the first end face in an X direction, and a first recess provided to the first outer surface; in a plan view of the magnetic core from a Z direction, the first recess is provided in a middle portion of the first end core in a Y direction; the X direction is a direction along the axial direction of the middle core; the Y direction is a direction in which the middle core, the first side core, and the second side core are arranged next to one another; and the Z direction is a direction orthogonal to the X direction and the Y direction.

An inductor component includes a body including a first surface and a second surface opposing each other in a first direction, and a third surface and a fourth surface connected to the first surface and the second surface and opposing each other in a second direction, a first conductor disposed in the body and extending in the first direction, a second conductor disposed adjacent to the first conductor in the body and extending in the first direction, a first pad and a second pad disposed on the third surface of the body, a first conductive via extending in the second direction and connecting the first conductor and the first pad, and a second conductive via extending in the second direction and connecting the second conductor and the second pad. The second conductor is disposed to be shifted with respect to the first conductor in the first direction.

An inductor component includes a body including a first surface and a second surface opposing each other in a first direction, and a third surface and a fourth surface connected to the first surface and the second surface and opposing each other in a second direction, a first conductor disposed in the body and extending in the first direction, a second conductor disposed adjacent to the first conductor in the body and extending in the first direction, a first pad and a second pad disposed on the third surface of the body, a first conductive via extending in the second direction and connecting the first conductor and the first pad, and a second conductive via extending in the second direction and connecting the second conductor and the second pad. The second conductor is disposed to be shifted with respect to the first conductor in the first direction.

A wireless power-supply system (1) performing a wireless power supply between a vehicle (10) and a stop station (20), wherein the wireless power-supply system includes a heat-transfer device (30). The heat-transfer device (30) transfers heat generated due to the wireless power supply to the stop station (20) having high heat capacity from the vehicle (10) having low heat capacity. The heat-transfer device (30) includes a flexible heat-transfer member (32), in which the flexible heat-transfer member has tiltability in a moving direction of the vehicle (10).

A wireless power transmission apparatus includes a resonator configured to transmit power through a resonance with another resonator, a switch configured to connect the resonator to a power source, a setting unit configured to set a target amount of current to flow in the resonator, and a control unit configured to control the switch based on the target amount of current.

In a case where a power transmission device operating as a master disappears, a wireless power feeding system selects a power transmission device to operate as a master instead based on predetermined priority levels.

The present invention provides a resonant wireless power receiver circuit, comprising: a resonant circuit for receiving a wireless power to generate a AC resonant signal which has an amplitude; a bridge rectifier circuit which includes a multi-mode switch, for rectifying the AC resonant signal to a rectifier output signal to drive a load, wherein the rectifier output signal includes a rectifier output voltage and a rectifier output current; and a feedback control circuit for generating a switch control signal according to a feedback signal related to the rectifier output signal to control the multi-mode switch to operate in a Conductive Operation at least for a partial time in a cycle period, such that the rectifier output voltage is substantially twice the amplitude, or the rectifier output voltage corresponds to an output voltage reference and/or the rectifier output voltage corresponds to an output current reference.