Patent ID: 11950336
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The lighting load controller of claim 1, wherein to vary, for each of a plurality of sequential burst operating periods, at least one of: the active portion of the respective burst operating period or the inactive portion of the respective burst operating period, the control circuitry to further:
determine a duration of the active portion of the duty cycle (TACTIVE) at the minimum load current (IMIN) that corresponds to the received target intensity (LTRGT);
determine whether the determined duration of the active portion (TACTIVE) is greater than or less than a minimum duration of the active portion;
responsive to the determination that the determined duration of the active portion of the burst operating period is greater than the minimum duration of the active portion of the burst operating period, enter a first low-end intensity burst operating mode:
set the duration of the inactive portion (TINACTIVE) of the burst operating period (TBURST) to a fixed value; and
vary the active portion of the burst operating period (TACTIVE) to provide an average load current (IAVE) to the lighting load, the average load current (IAVE) corresponding to the received target intensity (LTRGT).