US 12,289,012 B2
Generator and battery backup with conversion device
Robert J. Danforth, III, Sheboygan Falls, WI (US); Adam Larson, Mequon, WI (US); and Isaac S. Frampton, Strattanville, PA (US)
Assigned to Discovery Energy LLC, Kohler, WI (US)
Filed by Discovery Energy, LLC, Kohler, WI (US)
Filed on May 16, 2022, as Appl. No. 17/745,068.
Application 17/745,068 is a continuation of application No. 15/649,076, filed on Jul. 13, 2017, granted, now 11,368,100.
Prior Publication US 2022/0278627 A1, Sep. 1, 2022
Int. Cl. H02J 9/06 (2006.01); H02J 7/02 (2016.01); H02J 9/08 (2006.01); H02M 5/293 (2006.01); H02M 5/458 (2006.01); H02M 7/797 (2006.01)
CPC H02J 9/061 (2013.01) [H02J 7/02 (2013.01); H02J 9/08 (2013.01); H02M 5/293 (2013.01); H02M 5/4585 (2013.01); H02M 7/797 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a sensor configured to monitor a power source and generate sensor data indicative of the power source;
a bidirectional current converting device configured to convert alternating current (AC) to direct current (DC) in a first direction through the bidirectional current converting device and convert DC to AC in a second direction through the bidirectional current converting device, wherein the bidirectional current converting device selects the first direction or the second direction in response to the sensor indicative of the power source;
a filter coupled to an output of the bidirectional current converting device and comprising a capacitor and an inductor, wherein a capacitance value of the capacitor or an inductance value of the inductor is based on a target switching frequency of the bidirectional current converting device; and
a bypass path by which, upon the sensor data indicating that the power source is operational, a power from the power source is provided to a load without passing through the bidirectional current converting device;
wherein the bidirectional current converting device includes a plurality of transistors and the switching frequency depends on operation of the plurality of transistors;
wherein three inputs are provided to the plurality of transistors and the bidirectional current converting device provides a control signal to the plurality of transistors to select one or a combination of the three inputs as an output from the plurality of transistors; and
wherein the combination of the three inputs includes addition of two inputs.
 
6. A method comprising:
generating sensor data indicative of availability of a power source;
providing, in response to the sensor data, a control signal to a bidirectional current converting device to select a first current direction or a second current direction through the bidirectional current converting device;
filtering an output of the bidirectional current converting device with an output filter comprising a capacitor and an inductor, wherein a capacitance value of the capacitor or an inductance value of the inductor is based on a target switching frequency of the bidirectional current converting device; and
upon the sensor data indicating that the power source is operational, providing a power from the power source to the load via a bypass path that does not pass through the bidirectional current converting device;
wherein the bidirectional current converting device includes a plurality of transistors and the switching frequency depends on operation of the plurality of transistors;
wherein three inputs are provided to the plurality of transistors and the bidirectional current converting device provides a control signal to the plurality of transistors to select one or a combination of the three inputs as an output from the plurality of transistors; and
wherein the combination of the three inputs includes addition of two inputs.