Abstract: An electric vehicle (EV) charging system includes a first busway connected to a power source, the first busway including a first socket and a first busbar structured to carry current from the power source to the first socket; a first bus-plug structured to be plugged into the first socket, the first bus-plug including a first EV charger structured to charge a first EV of an EV fleet; and a first EV connector that is coupled to the first EV charger via a first EV cord and structured to be inserted into a power receptacle for the first EV.

Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.

Abstract: A receptacle includes a plurality of universal serial bus (USB) ports including a USB Type C PD port and a USB Type C port couplable to respective devices for charging, a controller coupled to the USB ports and including a dynamic power sharing logic, the controller structured to: determine whether one or more USB ports are coupled to the respective devices and manage first power negotiation and dynamic power sharing if both USB ports are coupled to respective devices or manage second power negotiation if only one USB port is coupled to respective device; an AC/DC converter including a gallium nitride (GaN) MOSFET on at least one of the primary side or the secondary side of the AC/DC converter, the AC/DC converter structured to provide high power to the USB Type C PD port; and a DC/DC converter structured to provide low power to the USB Type C port.

Abstract: A connector for use in charging an electric vehicle (EV). The connector includes a housing, an electrical receptacle coupled to the housing and structured to be inserted into and electrically couple with a charging port of the electric vehicle, and a radio frequency identification (RFID) reader disposed within or on the housing of the connector, the RFID reader structured to read RFID tags and, in response to reading an approved code from an RFID tag, to enable charging of the EV.

Abstract: A dimmer includes a primary intensity actuator coupled to a primary intensity potentiometer, the primary intensity actuator structured to be actuated for at least one of: controlling an amount of power delivered to a load connected to the dimmer in normal operation mode, and adjusting light intensity based on a first user input in the normal operation mode; selecting a type of end trimming based on a second user input before entering configuration mode; or adjusting, based on a third user input, an end trim value; a configuration actuator arranged on a side of the dimmer and structured to be actuated for entering the configuration mode based on a fourth user input within a first predetermined period; and a controller coupled to the primary intensity potentiometer, the configuration actuator, and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation.

Abstract: An electric vehicle (EV) charger includes a disconnect switch assembly including an EV connector structured to be inserted into a power receptacle for an EV, an EV charging cord coupled to the EV connector, and a disconnect switch box including a disconnect switch structured to connect or disconnect power supply to the EV and a terminal block structured to connect communications lines, where the disconnect switch box is structured to be installed at a charging space for the EV; and an EV circuit breaker charger couplable to the disconnect switch box via a separate EV charging cord and structured to be inserted within a panelboard remotely located from the charging space, the EV circuit breaker charger including a circuit interrupter structured to interrupt current from flowing to the EV in an event of fault, an EV charger structured to supply power to the EV, and a communications component structured to communicate with the EV via the communications lines.

Abstract: Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.

Abstract: An energy monitoring device includes a power supply circuit electrically coupled to a power source via a hot conductor and a load via a load conductor; a relay circuit including a relay and a relay driver circuit, where the relay includes a plurality of coils and the relay contact electrically coupled to the hot conductor and the load conductor; a sensing circuit including a hot voltage sensor and a load voltage sensor; and a controller electrically coupled to the power supply circuit, the relay driver circuit, and the sensing circuit, and structured to receive a hot voltage from the hot voltage sensor and a load voltage from the load voltage sensor, and determine a load current based at least in part on a relay contact resistance of the relay contact and a delta between the hot voltage and the load voltage.

Abstract: A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.

Abstract: A receptacle includes a plurality of universal serial bus (USB) ports including a USB Type C PD port and a USB Type C port couplable to respective devices for charging, a controller coupled to the USB ports and including a dynamic power sharing logic, the controller structured to: determine whether one or more USB ports are coupled to the respective devices and manage first power negotiation and dynamic power sharing if both USB ports are coupled to respective devices or manage second power negotiation if only one USB port is coupled to respective device; an AC/DC converter including a gallium nitride (GaN) MOSFET on at least one of the primary side or the secondary side of the AC/DC converter, the AC/DC converter structured to provide high power to the USB Type C PD port; and a DC/DC converter structured to provide low power to the USB Type C port.

Abstract: A receptacle includes a plurality of universal serial bus (USB) ports including a USB Type C PD port and a USB Type C port couplable to respective devices for charging, a controller coupled to the USB ports and including a dynamic power sharing logic, the controller structured to: determine whether one or more USB ports are coupled to the respective devices and manage first power negotiation and dynamic power sharing if both USB ports are coupled to respective devices or manage second power negotiation if only one USB port is coupled to respective device; an AC/DC converter including a gallium nitride (GaN) MOSFET on at least one of the primary side or the secondary side of the AC/DC converter, the AC/DC converter structured to provide high power to the USB Type C PD port; and a DC/DC converter structured to provide low power to the USB Type C port.

Abstract: A dimmer includes a primary intensity actuator coupled to a primary intensity potentiometer, the primary intensity actuator structured to be actuated for at least one of: controlling an amount of power delivered to a load connected to the dimmer in normal operation mode, and adjusting light intensity based on a first user input in the normal operation mode; selecting a type of end trimming based on a second user input before entering configuration mode; or adjusting, based on a third user input, an end trim value; a configuration actuator arranged on a side of the dimmer and structured to be actuated for entering the configuration mode based on a fourth user input within a first predetermined period; and a controller coupled to the primary intensity potentiometer, the configuration actuator, and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation.

Abstract: A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.

Abstract: A receptacle includes a plurality of universal serial bus (USB) power delivery (PD) ports couplable to one or more devices to be charged, a plurality of USB PD controllers coupled to the plurality of USB PD ports in a one-to-one manner, where the plurality of USB PD controllers are structured and configured to negotiate power sharing when the plurality of USB PD ports are coupled to a plurality of devices to be charged, a microcontroller coupled to the plurality of USB PD controllers and structured and configured to receive, from at least one USB PD controller of the plurality of USB PD controllers, real-time charging information including at least a power profile of the one or more devices to be charged, and a display coupled to the microcontroller and structured and configured to receive and display the real-time charging information.

Abstract: Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.

Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.

Abstract: An energy monitoring device includes a power supply circuit electrically coupled to a power source via a hot conductor and a load via a load conductor; a relay circuit including a relay and a relay driver circuit, where the relay includes a plurality of coils and the relay contact electrically coupled to the hot conductor and the load conductor; a sensing circuit including a hot voltage sensor and a load voltage sensor; and a controller electrically coupled to the power supply circuit, the relay driver circuit, and the sensing circuit, and structured to receive a hot voltage from the hot voltage sensor and a load voltage from the load voltage sensor, and determine a load current based at least in part on a relay contact resistance of the relay contact and a delta between the hot voltage and the load voltage.

Abstract: A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.