Abstract: A occupancy sensor device comprising an occupancy sensor to output a detection signal, the detection signal including one or more pulses, the one or more pulses comprising one or more characteristics indicative of either detection of a motion or detection of a disturbance; a controller coupled with the sensor to receive the detection signal, the controller programmed to compare the one or more characteristics of the one or more pulses against a predetermined characteristic threshold, and based on the comparison, determine whether the one or more pulses indicate detection of the motion or detection of the disturbance. A machine readable-medium to comprise code for the controller. And, a device comprising an occupancy sensor and a vibration sensor to correlate vibrations with an output from the occupancy sensor to prevent false triggers.

Abstract: A device for a wireless device control system for controlling lighting devices is disclosed. The device can include a wireless transceiver, a power loss detection circuit, a communication loss detection circuit, a power monitoring circuit, and an output circuit. The device is configurable to provide a preselected communication loss action upon detecting communication loss, a preselected power loss action upon detecting power loss, and a preselected load power fault action upon detecting a load power fault.

Abstract: In aspects of the present disclosure, a circuit interrupter includes a housing, a conductive path, a switch which selectively interrupts the conductive path, sensor(s), memory, and a controller within the housing. The sensor(s) measure electrical characteristic(s) of the conductive path. The memory stores an arc detection program that implements a machine learning model and includes a field-updatable program portion and a non-field-updatable program portion, where the field-updatable program portion includes program parameters used by the non-field-updatable program portion to decide between presence or absence of an arc fault. The controller executes the arc detection program to compute input data for the machine learning model based on the sensor measurements, decide between presence of an arc event or absence of an arc event based on the input data, and cause the switch to interrupt the conductive path when the decision indicates presence of an arc event.

Abstract: A occupancy sensor device comprising an occupancy sensor to output a detection signal, the detection signal including one or more pulses, the one or more pulses comprising one or more characteristics indicative of either detection of a motion or detection of a disturbance; a controller coupled with the sensor to receive the detection signal, the controller programmed to compare the one or more characteristics of the one or more pulses against a predetermined characteristic threshold, and based on the comparison, determine whether the one or more pulses indicate detection of the motion or detection of the disturbance. A machine readable-medium to comprise code for the controller. And, a device comprising an occupancy sensor and a vibration sensor to correlate vibrations with an output from the occupancy sensor to prevent false triggers.

Abstract: The present disclosure relates to arc fault detection in an electrical switch apparatus. In aspects of the present disclosure, an arc fault electrical switch apparatus includes a conductive path, a switch configured to interrupt electrical current in the conductive path, a current sensor in electrical communication with the conductive path and configured to measure the electrical current to provide current measurements, and a controller. The controller is configured to execute instructions to sample the current measurements to provide current samples, computing an estimated signal-to-noise ratio of the electrical current based on at least a portion of the current samples, determine whether the signal-to-noise ratio is less than a predetermined threshold, and activate the switch to interrupt the electrical current in the conductive path, if the signal-to-noise ratio is less than the predetermined threshold.

Abstract: A universal serial bus (USB) charging system includes a power supply including a plurality of power converters and a plurality of power supply outputs electrically coupled to the plurality of power converters, respectively. Each of the plurality of power converters is configured to convert an input voltage to a plurality of output voltages. A plurality of charging ports are electrically connected with the plurality of power supply outputs, respectively. Each of the plurality of charging ports is configured to provide an output voltage selected from the plurality of output voltages to an electronic device. A logic circuit is in electrical communication with the power supply and the plurality of charging ports. The logic circuit is configured to provide direct feedback to the power supply to output a particular output voltage of the plurality of output voltages to the plurality of charging ports.

Abstract: A universal serial bus (USB) charging system includes a power supply including a plurality of power converters and a plurality of power supply outputs electrically coupled to the plurality of power converters, respectively. Each of the plurality of power converters is configured to convert an input voltage to a plurality of output voltages. A plurality of charging ports are electrically connected with the plurality of power supply outputs, respectively. Each of the plurality of charging ports provides an output voltage selected from the plurality of output voltages to an electronic device. A logic circuit is in electrical communication with the power supply and the plurality of charging ports. The logic circuit provides direct feedback to the power supply to output a particular output voltage of the plurality of output voltages to the plurality of charging ports and regulates a temperature of the plurality of charging ports.

Abstract: The present disclosure relates to arc fault detection in an electrical switch apparatus. In aspects of the present disclosure, an arc fault electrical switch apparatus includes a conductive path, a switch configured to interrupt electrical current in the conductive path, a current sensor in electrical communication with the conductive path and configured to measure the electrical current to provide current measurements, and a controller. The controller is configured to execute instructions to sample the current measurements to provide current samples, computing an estimated signal-to-noise ratio of the electrical current based on at least a portion of the current samples, determine whether the signal-to-noise ratio is less than a predetermined threshold, and activate the switch to interrupt the electrical current in the conductive path, if the signal-to-noise ratio is less than the predetermined threshold.

Abstract: A wireless lighting control system includes a remote server system connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at an installation site. The site includes wireless devices in communication with a gateway via a local wireless network and at least some of the wireless devices are configured to control lighting fixtures, including a configurable user control device, such as a wall dimmer switch, having user interface elements configurable to activate specific lighting effects, such as power, dimming, and scene control. A user computer device is connected to the wide area network and has a graphical user interface enabling virtually mapping of user interface elements to lighting effects. Configuration can advantageously be done without physical access to either the user control device or to the lighting controllers, fixtures, or other devices at the installation site.

Abstract: Wireless lighting control systems and methods for controlling the illumination of one or more light fixtures are disclosed, including self-commissioning of hardware. Embodiments include a server connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at a site. The control system also includes a wireless gateway at the site initiating communication with the server via a cellular network. Wireless devices initiate communication with the wireless gateway via a mesh network and each wireless device can be wired to control at least one lighting fixture. Once hardware of the site system (e.g., a gateway and/or any device) is mounted or positioned in the appropriate location and powered on, the hardware will self-commission by automatically initiating communications. The gateway will initiate communication and identify itself to server system.

Abstract: An illustrative bi-level dimming controller for coupling to a dimming control input of a lighting driver includes a dimming preset selector for setting a preset dim level, and a dimming control circuit having variable impedance and providing a constant dimming voltage output for a preset dim level, even if the current supplied to or impedance coupled to the dimming controller changes. The dimming control circuit is responsive to the preset dim level to drive a dimming voltage output proportional to the preset dim level. The dimming controller may also include a dim enable circuit responsive to a detection signal to selectively couple and uncouple the dimming signal output with the dimming control input of the lighting driver, thereby providing switching between a preset dim level and a full light level. The detection signal may be electrically isolated from the dimming voltage output.

Abstract: Wireless lighting control systems and methods for controlling the illumination of one or more light fixtures are disclosed. Embodiments include a server connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at a site. The control system also includes a wireless gateway at the site communicating with the server via cellular. Wireless devices communicate with the wireless gateway via a mesh network and each wireless device is wired to control at least one lighting fixture. A user interface can connect to the wide area network and enable a user to access server control software. Control instructions entered on the server by the user interface are communicated from the server to the wireless gateway and to the wireless devices. A user site device may be connected to the site mesh network enabling a user to configure, monitor, and control lighting fixtures at the site.

Abstract: An illustrative bi-level dimming controller for coupling to a dimming control input of a lighting driver includes a dimming preset selector for setting a preset dim level, and a dimming control circuit having variable impedance and providing a constant dimming voltage output for a preset dim level, even if the current supplied to or impedance coupled to the dimming controller changes. The dimming control circuit is responsive to the preset dim level to drive a dimming voltage output proportional to the preset dim level. The dimming controller may also include a dim enable circuit responsive to a detection signal to selectively couple and uncouple the dimming signal output with the dimming control input of the lighting driver, thereby providing switching between a preset dim level and a full light level. The detection signal may be electrically isolated from the dimming voltage output.

Abstract: Wireless lighting control systems and methods for controlling the illumination of one or more light fixtures are disclosed, including self-commissioning of hardware. Embodiments include a server connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at a site. The control system also includes a wireless gateway at the site initiating communication with the server via a cellular network. Wireless devices initiate communication with the wireless gateway via a mesh network and each wireless device can be wired to control at least one lighting fixture. Once hardware of the site system (e.g., a gateway and/or any device) is mounted or positioned in the appropriate location and powered on, the hardware will self-commission by automatically initiating communications. The gateway will initiate communication and identify itself to server system.

Abstract: A wireless lighting control system includes a remote server system connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at an installation site. The site includes wireless devices in communication with a gateway via a local wireless network and at least some of the wireless devices are configured to control lighting fixtures, including a configurable user control device, such as a wall dimmer switch, having user interface elements configurable to activate specific lighting effects, such as power, dimming, and scene control. A user computer device is connected to the wide area network and has a graphical user interface enabling virtually mapping of user interface elements to lighting effects. Configuration can advantageously be done without physical access to either the user control device or to the lighting controllers, fixtures, or other devices at the installation site.

Abstract: Wireless lighting control systems and methods for controlling the illumination of one or more light fixtures are disclosed. Embodiments include a server connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at a site. The control system also includes a wireless gateway at the site communicating with the server via cellular. Wireless devices communicate with the wireless gateway via a mesh network and each wireless device is wired to control at least one lighting fixture. A user interface can connect to the wide area network and enable a user to access server control software. Control instructions entered on the server by the user interface are communicated from the server to the wireless gateway and to the wireless devices. A user site device may be connected to the site mesh network enabling a user to configure, monitor, and control lighting fixtures at the site.

Abstract: A current control system, and method for controlling current, and a lighting system including the same, are provided. The current control system includes front end circuitry to receive an input voltage and provide a regulated DC voltage to current source circuitry via a first input voltage terminal. Dimming interface circuitry provides a pulse width modulation signal to conversion circuitry, which uses the pulse width modulation signal to generate an analog voltage. The conversion circuitry sends the analog voltage to the current source circuitry via a second input voltage terminal. The current source circuitry uses the regulated DC voltage and the analog voltage to create an output current. The output current drives a load, which, in the lighting system, is one or more solid state light sources.

Abstract: A current control system, and method for controlling current, and a lighting system including the same, are provided. The current control system includes front end circuitry to receive an input voltage and provide a regulated DC voltage to current source circuitry via a first input voltage terminal. Dimming interface circuitry provides a pulse width modulation signal to conversion circuitry, which uses the pulse width modulation signal to generate an analog voltage. The conversion circuitry sends the analog voltage to the current source circuitry via a second input voltage terminal. The current source circuitry uses the regulated DC voltage and the analog voltage to create an output current. The output current drives a load, which, in the lighting system, is one or more solid state light sources.