Abstract: A variety of active cover plate configurations with prongs configured to contact side screw terminals of electrical receptacles are described.

Abstract: A variety of active cover plate configurations with prongs configured to contact side screw terminals of electrical receptacles are described.

Abstract: A variety of active cover plate configurations with prongs configured to contact side screw terminals of electrical receptacles or switches are described.

Abstract: An active cover plate includes a face plate, a load and an electrically insulated power extractor extending rearward from the face plate to interface with an electrical receptacle, wherein the power extractor extracts electrical power from the electrical receptacle to energize the load. A method for installing an active cover plate on an electrical receptacle is also provided.

Abstract: A variety of active cover plate configurations with prongs configured to contact side screw terminals of electrical receptacles are described.

Abstract: Various embodiments of a wall-plate system are disclosed. For example, wall-plate system may extend in longitudinal, lateral, and transverse directions that are orthogonal to one another. The wall-plate system may include any or all of the following: (1) a face plate; (2) a back plate; (3) electronic circuitry; (4) at least one spring clip comprising at least one first portion of conductive material and resiliently deflecting between a neutral position and a deflected position located outboard of the neutral position in the lateral direction; (6) at least one insulator positioned outboard of the at least one first portion of conductive material in the lateral direction; (7) the at least one insulator tracking the at least one spring clip as the at least one spring clip deflects between the neutral position and the deflected position.

Abstract: In one example, an electrical circuit includes a first functional block with an electrical load to produce an external result, a second functional block with a voltage isolator; a third functional block with a current controller. The first, second, and third functional blocks are connected such that the external result of the electrical load is determined by the current controller acting through the voltage isolator. The voltage isolator may be configured to limit a maximum voltage across the current controller.