US 11,699,946 B2
Load control device having an overcurrent protection circuit
Dinesh Sundara Moorthy, Allentown, PA (US); and James P. Steiner, Royersford, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Jan. 28, 2022, as Appl. No. 17/587,349.
Application 17/587,349 is a continuation of application No. 17/023,855, filed on Sep. 17, 2020, granted, now 11,239,742.
Application 17/023,855 is a continuation of application No. 16/515,411, filed on Jul. 18, 2019, granted, now 10,813,189, issued on Oct. 20, 2020.
Application 16/515,411 is a continuation of application No. 16/003,909, filed on Jun. 8, 2018, granted, now 10,362,656, issued on Jul. 23, 2019.
Claims priority of provisional application 62/517,484, filed on Jun. 9, 2017.
Prior Publication US 2022/0149715 A1, May 12, 2022
Int. Cl. H02M 1/08 (2006.01); H02M 1/32 (2007.01); H02M 7/12 (2006.01); H05B 45/10 (2020.01); H05B 45/31 (2020.01); H02M 7/217 (2006.01); H03K 17/16 (2006.01); H05B 39/04 (2006.01); H05B 45/50 (2022.01)
CPC H02M 1/081 (2013.01) [H02M 1/083 (2013.01); H02M 1/32 (2013.01); H02M 7/125 (2013.01); H02M 7/217 (2013.01); H03K 17/168 (2013.01); H05B 39/044 (2013.01); H05B 45/50 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A load control device, comprising
a controllably conductive device;
overcurrent protection circuitry to detect an overcurrent condition through the controllably conductive device; and
control circuitry operatively coupled to the controllably conductive device and to the overcurrent protection circuitry, the control circuitry to:
cause the controllably conductive device to transition between a conductive state and a non-conductive state to provide a phase-controlled alternating current (AC) output such that each AC half-cycle is apportioned into a conductive portion and a non-conductive portion; and
enable the overcurrent protection circuitry during the conductive portion of each AC half-cycle; and
disable the overcurrent protection circuitry during the non-conductive portion of each AC half-cycle.