A replaceable socket device includes adapters and a base. Each of the adapters include a jack and contacts disposed on a bottom of the adapters. The base includes sockets, an adapting interface disposed on the socket, and a coupling interface coupled to the adapting interface and an external power source. Each socket includes a bottom surface and a sidewall perpendicularly connected to the bottom surface. One of the adapters inserts in the socket via an opening formed by the bottom surface and the sidewall. The adapting interface is utilized to connect the socket and one of the adapters. The coupling interface is configured to conduct electrical signal from the external power source to the adapting interface. The structure of the adapting interface is used for allowing one of adapters to couple to the socket via the adapting interface. The adapting interface is lower than the bottom surface of the socket.

A replaceable socket device includes adapters and a base. Each of the adapters include a jack and contacts disposed on a bottom of the adapters. The base includes sockets, an adapting interface disposed on the socket, and a coupling interface coupled to the adapting interface and an external power source. Each socket includes a bottom surface and a sidewall perpendicularly connected to the bottom surface. One of the adapters inserts in the socket via an opening formed by the bottom surface and the sidewall. The adapting interface is utilized to connect the socket and one of the adapters. The coupling interface is configured to conduct electrical signal from the external power source to the adapting interface. The structure of the adapting interface is used for allowing one of adapters to couple to the socket via the adapting interface. The adapting interface is lower than the bottom surface of the socket.

An indoor growing environment for growing plants wherein due to the nature of the growing conditions the area is wet. If a high voltage device is in the growing environment near the water ground-fault protection is needed. To avoid the use of ground-fault protection, certain devices in the growing environment are powered by low voltage and the conversion to low voltage from a higher voltage is performed away from the immediate plant growing area or outside of the grow room

An indoor growing environment for growing plants wherein due to the nature of the growing conditions the area is wet. If a high voltage device is in the growing environment near the water ground-fault protection is needed. To avoid the use of ground-fault protection, certain devices in the growing environment are powered by low voltage and the conversion to low voltage from a higher voltage is performed away from the immediate plant growing area or outside of the grow room

A wireless-controlled smart plug device and methods of use and operation, using a solid state switch to provide electrical power from an outlet to a load, and provide protection against overload, short circuit, ground, arc, or voltage surge faults. The switch includes a bidirectional semiconductor switch with two back-to-back connected transistors, such as silicon power MOSFETs, silicon insulated-gate bipolar transistors (IGBTs), silicon carbide (SiC) transistors, or gallium nitride (GaN) transistors, each configured to control the current flow from the electrical receptacle to the external electrical load.

Certain aspects of the present disclosure generally relate to methods and apparatus for providing overvoltage protection for circuitry coupled to connector ports, such as USB-C ports. One example circuit for overvoltage protection between a connector port and a signal node corresponding to the connector port generally includes a first switch having a first terminal for coupling to the connector port and having a second terminal for coupling to the signal node; a first resistive element coupled in parallel with the first switch; a first transient protection circuit coupled between the signal node and a reference potential node; and a control circuit having an input coupled to the signal node and having a first output coupled to a control input of the first switch.

Certain aspects of the present disclosure generally relate to methods and apparatus for providing overvoltage protection for circuitry coupled to connector ports, such as USB-C ports. One example circuit for overvoltage protection between a connector port and a signal node corresponding to the connector port generally includes a first switch having a first terminal for coupling to the connector port and having a second terminal for coupling to the signal node; a first resistive element coupled in parallel with the first switch; a first transient protection circuit coupled between the signal node and a reference potential node; and a control circuit having an input coupled to the signal node and having a first output coupled to a control input of the first switch.

A medical electrical equipment power tap has multiple sockets and a power cord with a maximum current rating. The power tap includes a display to indicate information related to an instantaneous current draw of the power tap. The power tap also includes an electrical circuit which determines whether the instantaneous current draw exceeds a predetermined maximum allowed current which is less than the maximum current rating. The display provides a visual indication when the power tap's current draw exceeds the maximum allowed value, signifying that at least one item of medical electrical equipment should be unplugged from the power tap. The electrical circuit includes a current loop which passes through a structural portion of the power tap's housing for independently gauging the instantaneous current draw using a clamp probe.

A medical electrical equipment power tap has multiple sockets and a power cord with a maximum current rating. The power tap includes a display to indicate information related to an instantaneous current draw of the power tap. The power tap also includes an electrical circuit which determines whether the instantaneous current draw exceeds a predetermined maximum allowed current which is less than the maximum current rating. The display provides a visual indication when the power tap's current draw exceeds the maximum allowed value, signifying that at least one item of medical electrical equipment should be unplugged from the power tap. The electrical circuit includes a current loop which passes through a structural portion of the power tap's housing for independently gauging the instantaneous current draw using a clamp probe.

There is provided a power connector system for electrically connecting a power source to a device. The power connector comprises a first component and a second component which each have a plurality of electrical contacts disposed on a face thereof. The contacts each include an electrically resistive element having an impedance. When the first and second components are coupled, a logic unit controls enables current flow between the first and second components based on the impedances.