A battery charger and method is disclosed for detecting when a battery has a low state of health while simultaneously charging or maintaining the battery. A battery charger includes a processor; a non-transitory memory device; a power management device to receive an input power and to output a charging current; a pair of electrical conductors to electrically couple with a battery, and a display electrically coupled to the processor. The display being configured to indicate a bad battery indicator when the battery has a low state of health and whether the battery is good to start.

An electronic power connector including a contact and a contact core. The contact is configured to electrically connect a power supply to a load. The contact core is configured to receive the contact. The contact core includes a transformer winding configured to sense a current and a sensor slot configured to receive a sensor. In some embodiments, the sensor is configured to sense a temperature. In some embodiments, the sensor is configured to sense a voltage.

Provided are a charging gun cooling system and a charging gun, relating to the technical field of charging guns. In the charging gun cooling system, a head cooling assembly includes a support frame and a cooling cavity, the cooling cavity is provided with a liquid inlet and a liquid outlet, the support frame is configured to accommodate a connection end of a first terminal and a connection end of a second terminal, the cooling cavity is disposed in the support frame and between the first terminal and the second terminal, a liquid inlet pipe communicates with the liquid inlet, a liquid outlet pipe communicates with the liquid outlet, a first cable is laid on the outer surface of the liquid inlet pipe, and a second cable is laid on the outer surface of the liquid outlet pipe.

A reverse fault current interruptor (RFCI) may be employed in one or more locations in an electrical power system. In one example, an RFCI may be installed in a combiner box of a solar power system. The RFCI may include a reverse current detector and a circuit protector such as a circuit breaker, operable in combination to clear a line-line fault in the combiner box. The RFCI enables a reduction of incident energy levels through detection of a reversal in a fault current characteristic of some DC power systems, where a traditional overcurrent protection device (OCPD) (e.g., fuse, breaker) may not trip in the same period of time.

Systems, Methods, and Apparatuses are provided for monitoring cable connections between a trailer and vehicle. The system includes a monitoring device disposed within the vehicle; and a trailer cable and a breakaway trailer cable that provide a set of cable connections, the monitoring device is configured to: monitor the set of cable connections from connection data generated by a set of multimodal sensors integrated with the vehicle about statuses of the cable connections between the trailer and the vehicle; initiate a monitor function upon detection of a presence of the trailer connected to the vehicle by at least one sensor of the set of multimodal sensors integrated with the vehicle; and determine the statuses of the cable connections by fusing together using an information fusion algorithm one or more types of signal data from the set of multimodal sensors comprising optical signal data, radio signal data, and range signal data.

A circuit for identifying a power supply may include a voltage divider to divide an identification voltage from the power supply. The output of the voltage divider is electrically coupled to an adapter identification pin of a controller to identify the power supply.

A method (200) and a connection test device (100; 300) for checking an intermittent impedance variation in a first and/or a second line (110; 302, 334) are described. The connection test device (100; 300) comprises a transmitter (102; 308) having a test signal generator (106) for generating a test signal and a first test point (108; 304) for connecting the first (110; 302) or the second line (334), wherein the test signal generator (106) supplies the test signal to the first (110; 302) or the second line (334) via the first test point (108; 304). The connection test device (100; 300) further comprises a first receiver (104; 310) having a second test point (112; 306, 336) for connecting the first (110; 302) or second line (334) and a receiver front end (114; 326, 328) which receives an incoming signal from the first (110; 302) or second line (334) via the second test point (112; 306, 336). The connection test device (100; 300) has, in addition, an evaluation logic (116), which is connected to the receiver front end (114; 326, 328) and which compares the input signal to a threshold value in order to identify an intermittent impedance variation in the first (110; 302) and/or the second line (334).

An electrical connector assembly includes a first electrically conductive contact member and a second electrically conductive contact member. Both contact members have non-planar interface surfaces. The second interface surface is complimentary to the first interface surface. Magnetic field concentrators are spaced apart to concentrate a magnetic field in a zone. The magnetic field is associated with electric current carried by the electrical connector assembly. A flexible circuit carrier has openings to receive the magnetic field concentrators. The flexible circuit carrier comprises a flexible dielectric layer and a conductive traces. A magnetic field sensor is mounted on the flexible circuit carrier in the zone.

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.