An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.

The present disclosure relates to transformers. Various embodiments of the teachings herein may include a coating of an insulation body of a dry transformer. For example, the electrical winding may include multiple windings of a winding conductor wound to form a coil. The coil has been embedded into a solid insulation body. In some embodiments, a coating of an electrically conductive material, comprising a resin matrix and microscale filler, has been applied to at least one surface of the insulation body.

An upper end portion and a lower end portion of a second magnetic portion of a coil component are further away from a coil than when a third part and a fifth part are not present. For this reason, a magnetic flux is unlikely to be concentrated in the upper end portion and the lower end portion of the second magnetic portion, so that magnetic saturation is unlikely to occur. Therefore, improvement of direct current superimposition characteristics is realized in the coil component.

A pinless power plug for receiving wireless power from a pinless power jack is disclosed. The pinless power plug may comprise at least one secondary coil for inductively coupling with a primary coil. The primary coil may be associated with the pinless power jack. The primary coil may be shielded behind an insulating layer. The pinless power plug may comprise an annular magnetic anchor arranged around a perimeter of the at least one secondary coil concentric and non-overlapping with the at least one secondary coil. The annular magnetic anchor may be configured to magnetically couple with an annular magnetic snag in the pinless power jack. The pinless power plug may comprise at least one magnet spaced away from and outside of the annular magnetic anchor. The at least one magnet may be configured to magnetically couple with a magnet in the pinless power jack at a particular orientation or angle.

A wireless electrical energy transmission system is provided. The system comprises a wireless transmission base configured to wirelessly transmit electrical energy or data via near field magnetic coupling to a receiving antenna configured within an electronic device. The wireless electrical energy transmission system is configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device external and adjacent to the transmission base.

The present disclosure provides a circuit module and a solid-state transformer system. The circuit module includes: a first circuit unit outputting a first voltage; a second circuit unit outputting a second voltage, where the second voltage is less than the first voltage; and a shielding structure arranged between the first circuit unit and the second circuit unit, where the shielding structure includes: a first conductor layer electrically coupled to the first circuit unit, a second conductor layer electrically coupled to the second circuit unit, a third conductor layer located between the first conductor layer and the second conductor layer; a first insulation layer arranged between the first conductor layer and the third conductor layer; and a second insulation layer arranged between the second conductor layer and the third conductor layer.

An electronic component includes an insulating layer, a low voltage conductor pattern formed inside the insulating layer, a high voltage conductor pattern formed inside the insulating layer such as to face the low voltage conductor pattern in an up/down direction, and a withstand voltage enhancement structure of conductive property formed inside the insulating layer and along the high voltage conductor pattern such as to protrude further outside than the low voltage conductor pattern in plan view.

A surface mount device inductor has a package casing sized to attenuate electromagnetic coupling between the inductor coils of the surface mount device inductors. The package casing makes the surface mount device inductors self-shielding. The surface mount device inductors can be incorporated into a radiofrequency module, and can be incorporated into a front end system of a wireless mobile device.

A wireless charging apparatus according to an embodiment can improve heat dissipation and charging efficiency by adjusting the surface area of a magnetic pad. Therefore, the wireless charging apparatus can be effectively used for a transportation means, such as an electric vehicle, which requires high-capacity power transmission between a transmitter and a receiver.

In a wireless charging system, a transmitter coil of a wireless charger device and a receiver coil of a portable electronic device can operate at either of two different operating frequencies. The low frequency can be in a range from about 300 kHz to about 400 kHz, and the high frequency can be in a range from about 1 MHz to about 2 MHz. To provide efficient charging at both frequencies, the transmitter and receiver coils can be formed from a compound, or multi-stranded, wire.