US 11,811,305 B2
Turn-on procedure for a load control device
Steven J. Kober, Center Valley, PA (US); Soma Sekhara Rao Konijeti, Bengaluru (IN); Rajesh Krishna Thottumkara, New Milford, NJ (US); and Keertana Veeranki, Bethlehem, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Jul. 1, 2022, as Appl. No. 17/855,863.
Application 17/855,863 is a continuation of application No. 16/845,131, filed on Apr. 10, 2020, granted, now 11,381,156.
Application 16/845,131 is a continuation of application No. 16/427,258, filed on May 30, 2019, granted, now 10,645,776, issued on May 5, 2020.
Application 16/427,258 is a continuation of application No. 15/904,130, filed on Feb. 23, 2018, granted, now 10,314,129, issued on Jun. 4, 2019.
Claims priority of provisional application 62/580,671, filed on Nov. 2, 2017.
Claims priority of provisional application 62/562,008, filed on Sep. 22, 2017.
Claims priority of provisional application 62/463,159, filed on Feb. 24, 2017.
Prior Publication US 2022/0337151 A1, Oct. 20, 2022
Int. Cl. H05B 45/14 (2020.01); H05B 45/3725 (2020.01); H02M 1/36 (2007.01); H05B 45/385 (2020.01); H05B 47/165 (2020.01); H02M 3/335 (2006.01); H05B 45/375 (2020.01); H05B 45/38 (2020.01)
CPC H02M 1/36 (2013.01) [H05B 45/14 (2020.01); H05B 45/3725 (2020.01); H05B 45/385 (2020.01); H05B 47/165 (2020.01); H02M 3/33507 (2013.01); H05B 45/375 (2020.01); H05B 45/38 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling an intensity of a lighting load, the method comprising:
generating, by a power converter circuit, a bus voltage across a bus capacitor;
controlling the magnitude of a load current conducted through the lighting load to adjust the intensity of the lighting load;
measuring a voltage representative of a load voltage produced across the lighting load;
storing a value representative of the measured voltage as a learned voltage;
determining an operating parameter for the power converter circuit as a function of the learned voltage; and
controlling the power converter circuit to charge the bus capacitor using open loop control according to the operating parameter until the magnitude of the bus voltage reaches a threshold.