US 12,143,039 B2
Energy-supply system for supplying energy to an electrical load from a battery
Jason O. Adams, Emmaus, PA (US); Edward J. Blair, Telford, PA (US); Stuart W. DeJonge, Riegelsville, PA (US); and Olli T. Friman, Bethlehem, PA (US)
Assigned to Lutron Technology Company LLC, Cooperburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on May 21, 2021, as Appl. No. 17/327,548.
Claims priority of provisional application 63/028,859, filed on May 22, 2020.
Prior Publication US 2021/0367542 A1, Nov. 25, 2021
Int. Cl. E06B 9/72 (2006.01); H02J 7/00 (2006.01); H02P 23/00 (2016.01)
CPC H02P 23/00 (2013.01) [E06B 9/72 (2013.01); H02J 7/0063 (2013.01); H02J 7/007 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A motorized window treatment comprising:
a compartment configured to receive one or more batteries, wherein the one or more batteries are configured to produce a battery voltage and defined by an open-circuit voltage; and
a motor drive unit comprising:
a motor configured to control movement of a covering material of the motorized window treatment;
an energy storage element configured to store a storage voltage;
a power converter circuit configured to conduct a battery current from the one or more batteries to charge the energy storage element to produce the storage voltage across the energy storage element;
a motor drive circuit configured to draw a motor current from the energy storage element to control power delivered to the motor to control movement of the covering material; and
a control circuit configured to adjust a duty cycle for controlling the power converter circuit to control the battery current such that a voltage drop of the battery voltage does not exceed a set percentage of the open-circuit voltage when power is being delivered to the motor to control movement of the covering material.