LUMINAIRE WITH SWITCH-MODE CONVERTER POWER MONITORING

摘要

The power consumption of a switch-mode power converter can be determined based upon at least one of a converter drive signal pulse width or a converter drive signal frequency. Such power consumption can be determined using an algorithm providing a functional relationship between switch-mode power converter power consumption and at least converter drive signal pulse width or frequency. Such algorithms can be either calculated using known component values or empirically determined. Such power consumption may also be determined using store power consumption data in a data store that is indexed by at least one of the converter drive signal pulse width or frequency.

主权项

1. A power monitoring system, comprising:
a power subsystem including:
at least one switch-mode power converter including at least one power converter drive circuit, the switch-mode power converter electrically conductively coupled to provide an adjustable level power output to at least one solid state lighting subsystem and the power converter drive circuit to adjust the power output level of the switch-mode power supply to the at least one solid state lighting subsystem based on at least one of: a converter drive signal frequency or a converter drive signal pulse width; anda control subsystem communicably coupled to the power converter drive circuit, the control subsystem including: at least one controller that determines at least an approximation of the power consumed by the power subsystem to generate the power output to the at least one solid state lighting subsystem based at least in part on at least one of: information indicative of the converter drive signal frequency or information indicative of the converter drive signal pulse width.