Abstract: Radio frequency-enabled lighting-fixture management systems, apparatus, and methods are described. One implementation includes a wireless communication component and a controller that is integrated into the radio frequency-enabled lighting-fixture management unit. The controller is configured to obtain operational values of a luminaire driver or a luminaire. The controller is further configured to provide the obtained operational values to the wireless communication component for transmission.

Abstract: LED lighting fixtures, or luminaires, related components, driver circuit, methods, and software/firmware are described that can provide for among other things, ambient environment sensing, thermal self-monitoring, sensor-based power management, communications, and/or programmability. Driver and lighting circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus. Methods of hysteretic power factor correction start-up are also described.

Abstract: Power factor correction and driver circuits and stages are described. More particularly, power factor correction circuits are described that utilize an auxiliary inductor winding for power regulation. Driver circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. An exemplary embodiment of a driver circuit can implement a comparator and/or a voltage regulator to allow for improved output current uniformity for high-voltage applications and loads, such as series configurations of LEDs. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus.

Abstract: Power factor correction and driver circuits and stages are described. More particularly, power factor correction circuits are described that utilize an auxiliary inductor winding for power regulation. Driver circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. An exemplary embodiment of a driver circuit can implement a comparator and/or a voltage regulator to allow for improved output current uniformity for high-voltage applications and loads, such as series configurations of LEDs. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus.

Abstract: LED lighting fixtures, or luminaires, related components, driver circuit, methods, and software/firmware are described can provide for among other things, ambient environment sensing, thermal self-monitoring, sensor-based power management, communications, and/or programmability. Driver and lighting circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus. Methods of hysteretic power factor correction start-up are also described.

Abstract: Power factor correction and driver circuits and stages are described. More particularly, power factor correction circuits are described that utilize an auxiliary inductor winding for power regulation. Driver circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. An exemplary embodiment of a driver circuit can implement a comparator and/or a voltage regulator to allow for improved output current uniformity for high-voltage applications and loads, such as series configurations of LEDs. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus.