A combination receptacle includes a first universal serial bus (USB) port having a first type, a second USB port having a second type, a shutter structured to have a first state to allow access to the first USB port and block access to the second USB port and a second state to block access to the first USB port and allow access to the second USB port, and circuitry structured to control and provide power to the first and second USB ports.

According to an aspect, an overvoltage protection circuit includes a bias current generator configured to generate a bias current, and a current comparator configured to receive the bias current and a voltage associated with a data terminal of a connector. The current comparator includes a transistor. The transistor is configured to activate based on a level of the voltage associated with the data terminal. The current comparator is configured to compare a current of the transistor with the bias current. The overvoltage protection circuit includes an output circuit configured to generate an overvoltage protection signal in response to the current of the transistor being greater than the bias current.

A storage compartment is provided. The device includes a housing unit with a door. The housing unit is designed to be concealed within a wall. The housing unit is secured to the wall by a plurality of fasteners. The door is pivotally connected to the housing unit via a plurality of hinges. The door provides access to an interior volume of the housing unit. The door includes more than one spring-loaded latch that secures the door to the housing unit. A plurality of electrical outlets is disposed on the interior walls of the housing unit. A recessed area of the housing unit provides a storage area for electrical cords, surge protectors, and other items. The door includes an aperture that allows for electrical cords within the storage area to be accessed when the door is closed.

An artificial lighted tree is presented with power routed through the trunk of the tree and three-wire safety grounding. The artificial lighted tree comprising a fused electrical plug having improved safety features comprising: a body portion surrounding respective first ends of a first, a second and a third electrical wire, the body portion further comprising a fuse holder embedded within an upper region of the body portion, and a fuse adapted to be releasably secured within the fuse holder via releasable securing means, a live blade in electrical communication with the first end of the first electrical wire, a neutral blade in electrical communication with the first end of the second electrical wire, a ground pin receptacle in electrical communication with the first end of the third electrical wire, wherein the body portion surrounds and maintains the live blade, neutral blade, and ground pin receptacle in spaced apart orientation corresponding to polarized sockets on an electrical wall outlet.

An example electronic device includes a first switch and a second switch that are each coupled to an overvoltage detection and protection circuit. The first switch is configured to connect a first sideband use (SBU) terminal of a Universal Serial Bus Type-C (USB-C) controller to a SBU crossbar switch of the USB-C controller. The second switch is configured to connect a second SBU terminal of the USB-C controller to the SBU crossbar switch. The overvoltage detection and protection circuit is configured to deactivate the first switch or the second switch when a voltage exceeding a predetermined threshold is detected on a terminal of the first switch or the second switch.

An electronic device includes a first switch configured to connect a V.sub.CONN supply terminal of a Universal Serial Bus Type-C (USB-C) controller to a first configuration channel (CC) terminal of the USB-C controller in response to a USB-C connector being in a first orientation. A first current may flow through the first switch. The electronic device also includes an overcurrent component coupled to the first switch. The overcurrent component includes a second switch associated with the first switch. The second switch has a second current associated with the first current. The overcurrent component is configured to determine whether the first current is greater than a threshold current based on the first current and the second current. The overcurrent component is also configured to close the first switch in response to determining that the first current is greater than the threshold current.

An electronic device includes a first electronic circuitry portion configured to connect a V.sub.CONN supply terminal of a Universal Serial Bus Type-C (USB-C) controller to a first configuration channel (CC) terminal of a plurality of CC terminals of the USB-C controller. The first CC terminal of the USB-C controller is to be directly connected to a first CC terminal of a plurality of CC terminals of a USB-C receptacle. The electronic device further includes a second electronic circuitry portion electrically coupled to the first electronic circuitry portion and configured to detect a voltage across the first CC terminal of the USB-C controller and the V.sub.CONN supply terminal. The second electronic circuitry portion is to decouple the V.sub.CONN supply terminal from the first CC terminal of the USB-C controller when the voltage is greater than a predetermined threshold.

Jumper cables include a housing with first and second pairs of cables extending therefrom. On an upper surface of the housing are a pair of dual-color LEDs, each associated with one of the pairs of cables. Circuitry within the housing causes each LED to illuminate in one of two discrete colors when the polarity of the cables is reversed. A rotary isolation dial with multiple visual indicators allow a user to independently verify that the polarity of each pair of cables is correct before establishing electrical communication between two batteries. The LED circuits include a surge suppressor that protects the rescuing vehicle and the disabled vehicle's electrical system from alternator load dump when the rescuing vehicle's engine is running. Adapters allow an auxiliary power source to be coupled with the jumper cables in the event the dead battery is incapable of powering the LEDs and alarms.

Over-voltage protection systems and methods are disclosed. In one aspect, a biasing circuit is added to a pre-existing clamp required by the Universal Serial Bus (USB) Type-C specification at a configuration control (CC) pin. The biasing circuit turns the pre-existing clamp into an adjustable clamp that dynamically adjusts to over-voltage conditions. In an exemplary aspect, the biasing circuit may include a biasing field effect transistor (FET) and a pair of switches that selectively couple the pre-existing clamp and the biasing FET to fixed voltages such that the CC pin is maintained at an acceptable voltage. In another exemplary aspect, the biasing circuit may omit the biasing FET and rely on two switches that selectively couple the pre-existing clamp to fixed voltages such that the CC pin is maintained at an acceptable voltage.

A high-voltage connection system is described. The HV connection system includes a HV plug-connector and a HV socket-connector. The HV plug-connector is installed in an electrical HV unit to form an electrical connection between a second portion of a conductive core of the HV plug-connector and the electrical HV unit in a way that a plug extends outwards of the electrical HV unit. A HV cable with a cable lug is inserted in the HV socket-connector. One opening of the HV socket-connector is plugged on the plug of the HV plug-connector to align the conductive core with a center line of a second channel. An electric connection is created between the cable lug and the conductive core.