A semiconductor device for determining whether a foreign substance (e.g., water) is present and a method of operating the same are provided. The semiconductor device includes a receptacle including a plurality of pins according to a USB type-C receptacle interface; a first current source providing first current to a CC1 signal pin or a CC2 signal pin among the plurality of pins in a first operation mode; a second current source providing second current to the CC1 signal pin or the CC2 signal pin in a second operation mode; a third current source providing third current to at least two pins of other pins excluding the CC1 signal pin and the CC2 signal pin; and a power delivery integrated circuit (PDIC) controlling the first current source, the second current source and the third current source and detecting the voltage level of a signal outputted to the plurality of pins.

Various embodiments are described that relate an electrical current connector. The electrical current connector can be configured to provide electrical current when pressure is applied to a prong set. This pressure can cause a contact to engage with a connector. This can complete a circuit that allows the electrical current to flow. The connector can be coupled to a cable that can be configured to transfer data along with the electrical current. The cable can have an inner portion that transfers the data while an outer portion that surrounds the inner portion transfers the current.

The present disclosure provides an anti-electric shock structure and a socket. In a non-conductive state, the two conductive pieces are respectively arranged in front of the elastic piece parts of the two conductive contact pieces at intervals. A first socket is formed in the jack part. When a plug is plugged into the first socket, one plug blade of the plug extrudes the sliding mechanism to push the two elastic piece parts, so that the two elastic piece parts can touch the conductive pieces. When a non-plug conductive object is inserted into the first socket, the conductive contact pieces cannot conduct electricity because the conductive object cannot push the sliding mechanism to the position where the elastic piece parts are in contact with the conductive pieces, so that the anti-electric shock structure has a good anti-electric shock function.

A wireless power feeding device includes an attachment member having a socket to be electrically connected to a power supply and a fastener to be electrically connected to a ground, and a band having a socket pin to be inserted to the socket and a locking tool to be locked to the fastener, the band being attached to the attachment member and fixing a power receiving device to which power is to be wirelessly fed to the attachment member, wherein the socket pin has a power feeding electrode to be electrically connected to the power supply within the socket, and a ground connection sensing electrode to be electrically connected to the ground via the locking tool and the fastener, and the attachment member has a switch circuit electrically connecting the power supply to the power feeding electrode only when the ground connection sensing electrode is electrically connected to the ground.

An interface test device for testing a circuit, the interface test device including a module assembly including a plurality of modules, wherein a test block assembly is formed from individual test blocks that are arranged at one another in parallel and fixated at one another, wherein a test plug assembly is formed from individual test plugs that are arranged at one another other in parallel and fixated at one another, wherein a movement of a lever arm out of a plane of an insertion direction of the test plug assembly into the test block assembly is transferred by strut elements to pinions of the test plug assembly and inserts test fingers of the test plug assembly into openings of the test block assembly, wherein one of the test fingers of the test plug assembly opens a medium to high voltage monitoring circuit.

A plug connector is provided in a plug housing and has a conductive braided wire that connects ends of a plurality of plug terminals opposite to contact points with receptacle terminals such that each plug terminal can move relatively to each other. A service plug has a plug connector and a receptacle connector.

An electrical receptacle including a body having a first cavity and a second cavity, a plurality of first electrical connections in the first cavity and a plurality of second electrical connections in the second cavity, at least one electrical plug sensing device in the first cavity, and wherein electrical continuity to the plurality of first electrical connections from the plurality of second electrical connections only occurs when the at least one electrical plug sensing device senses a presence of an electrical plug in the first cavity.

There is provided a cable including at least one optical fiber cable, at least two electrical cables provided so as to sandwich the optical fiber cable, and plugs positioned at both ends and each having an electrical contact part connected to each of the electrical cables.

An audio jack may include two contacts to electrically connect to a ground contact of an audio plug in order to detect that a metallic audio plug is inserted into the audio jack. A first of these two contacts may be grounded to form a current return path that generates a ground voltage at the ground contact of the audio plug. The second of these two contacts may be repurposed after the detection to sense the ground voltage. The sensed ground voltage may be added to right and left audio signals. The net voltages provided to the audio plug may be right and left audio signals that include the sensed ground voltage minus the actual ground voltage at the ground contact of the audio plug. This may remove the ground voltage from the net audio output signals, which may reduce crosstalk.

The panel (220), the energy-saving switch (230), and the connector (240) may be formed in a separable module type corresponding to each of the power sockets (130). The separable module type increases usability, because it is possible to use the modules only for necessary ones of the plugs (P) in the power sockets (130) and not to insert them into the power sockets (130) without a plug (P) connected.