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

Claim 12:
13. The lighting load control method of claim 9 wherein varying, for each of the 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, further comprises:
determining, by the lighting load controller control circuitry, 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);
determining, by the lighting load controller control circuitry, 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:
setting, by the lighting load controller control circuitry, the duration of the inactive portion (TINACTIVE) of the burst operating period (TBURST) to a fixed value; and
varying, by the lighting load controller control circuitry, 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).