Patent ID: 11859803
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H | IPC F

Claim 18:
19. A system comprising:
one or more lighting devices, wherein each lighting device is configured to adjust a present intensity level of light emitted by the lighting device between a low-end intensity level and a high-end intensity level; and
a fixture controller comprising:
a power converter circuit configured to generate a bus voltage on a power bus, wherein the power bus is coupled between the fixture controller and the one or more lighting devices; and
a control circuit configured to control the one or more lighting devices, the control circuit configured to:
send a query message to the one or more lighting devices that requests the lighting device to send a status message including a minimum measured value of the bus voltage on the power bus, a maximum measured value of the bus voltage on the power bus, and an average measured value of the bus voltage on the power bus over a period of time;
detect a brownout event on the power bus; and
send a power message to the one or more lighting devices instructing the one or more lighting devices to decrease their respective high-end intensity level in response to the detection of the brownout event on the power bus.