US 12,463,444 B2
Devices, systems, and methods for a direct-current energy storage to power an alternating current load
Anthonius Bakker, Newberg, OR (US); and Judith Deborah Homann, Vallejo, CA (US)
Assigned to YELLOW POWER SYSTEMS, LLC, Newberg, OR (US)
Filed by Yellow Power Systems, LLC, Newberg, OR (US)
Filed on May 7, 2024, as Appl. No. 18/656,693.
Application 18/656,693 is a continuation of application No. PCT/US2024/018141, filed on Mar. 1, 2024.
Claims priority of provisional application 63/449,902, filed on Mar. 3, 2023.
Prior Publication US 2024/0297517 A1, Sep. 5, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/00 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/46 (2006.01)
CPC H02J 7/0063 (2013.01) [H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/46 (2013.01); H02J 7/00032 (2020.01); H02J 7/0047 (2013.01); H02J 7/00712 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A power source configured to power an alternating current (“AC”) load, comprising:
an energy storage device comprising a first terminal and a second terminal, the energy storage device configured to supply a direct current, the energy storage device configured for an average voltage output that is between 85 volts and 380 volts;
an electrical outlet including a first port and a second port;
a first conductive line extending from the first terminal to the first port;
a second conductive line extending from the second terminal to the second port;
an electrical switch coupled to a terminus of a first portion of the first conductive line, the electrical switch configured to transition between an open state and a closed state with a pole of a second portion of the first conductive line to electrically connect the first portion to the second portion and subsequently electrically disconnect the first portion from the second portion; and
a controller electronically coupled to the electrical switch, the controller configured to:
periodically transition the electrical switch between the open state and the closed state at a frequency between 95 Hz and 135 Hz;
in response to periodically transitioning the electrical switch, to generate a rectangular wave form from the energy storage device that supplies the direct current, the rectangular wave form supplied to a bus of the power source; and
cause the electrical switch to operate with a duty cycle of between 80% and 98%.