US 9,812,969 B2
Ground leakage power supply for dimming applications
Levan Papismedov, Middle Island, NY (US); Alfred Lombardi, Syosset, NY (US); Michael Ostrovsky, Brooklyn, NY (US); and Ozgur Keser, Ronkonkoma, NY (US)
Assigned to LEVITON MANUFACTURING CO., INC., Melville, NY (US)
Filed by Leviton Manufacturing Co., Inc., Melville, NY (US)
Filed on Nov. 26, 2014, as Appl. No. 14/554,697.
Prior Publication US 2016/0149496 A1, May 26, 2016
Int. Cl. H02J 1/10 (2006.01); H02J 3/38 (2006.01); H02J 3/32 (2006.01); H02M 3/335 (2006.01); H02M 1/08 (2006.01); H02M 5/257 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/33507 (2013.01) [H02M 1/083 (2013.01); H02M 5/2573 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0032 (2013.01); Y02B 70/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dimmer for controlling power to a load, the dimmer comprising:
a phase input terminal configured to couple to an AC power source;
a ground terminal configured to couple to a ground connection of the AC power source;
a load output terminal configured to couple to the load;
a switching circuit electrically coupled between the phase input terminal and the load output terminal;
a controller configured to control the switching circuit such that power to the load is selectively controlled; and
a ground leakage power supply, wherein the ground leakage power supply is a switched mode power supply electrically coupled to the phase input and ground terminals, wherein the ground leakage power supply derives power only from the phase input and ground terminals;
wherein the controller receives power from the ground leakage power supply.