US 11,894,761 B2
Power supply for use with electrodynamic screen
Annie Bernard, Boston, MA (US); Ryan Eriksen, Maynard, MA (US); Benjamin Livney, W Melbourne, FL (US); and Mark Horenstein, West Roxbury, MA (US)
Assigned to Sol Clarity, Inc., Somerville, MA (US)
Filed by Sol Clarity, Inc., Somerville, MA (US)
Filed on Jun. 14, 2022, as Appl. No. 17/840,016.
Claims priority of provisional application 63/210,336, filed on Jun. 14, 2021.
Prior Publication US 2022/0399833 A1, Dec. 15, 2022
Int. Cl. H02M 1/00 (2006.01); H02M 3/155 (2006.01); H02M 7/539 (2006.01)
CPC H02M 1/007 (2021.05) [H02M 1/0095 (2021.05); H02M 3/155 (2013.01); H02M 7/539 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An AC power supply for connection to at least one electrode of an electrodynamic screen, the power supply comprising:
a DC-to-DC converter electrically coupled to a source of DC voltage, the DC-to-DC converter further comprising an output of the DC-to-DC converter;
a DC-to-AC converter electrically coupled to the output of the DC-to-DC converter, the DC-to-AC converter comprising a two-terminal passive element electrically coupled in series with a first transistor, the first transistor comprising a control terminal, wherein the control terminal of the first transistor is electrically coupled to a periodic voltage signal configured to switch the first transistor into an on state and an off state;
an AC output, the AC output comprising an AC voltage configured to change periodically;
a regulator circuit configured to sample the AC output voltage of the power supply, the regulator circuit further configured to detect when the AC output voltage reaches a predetermined voltage, and wherein;
the regulator circuit is configured to electrically couple the power supply to the source of DC voltage when the output voltage is less than the predetermined voltage.