US 11,942,797 B2
Virtual AC power signal transfer using wireless power transfer system
Mark Melone, Frankfort, IL (US); and Alberto Peralta, Chicago, IL (US)
Assigned to NuCurrent, Inc., Chicago, IL (US)
Filed by NuCurrent, Inc., Chicago, IL (US)
Filed on Feb. 10, 2021, as Appl. No. 17/172,906.
Prior Publication US 2022/0255367 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/40 (2016.01); H02J 50/10 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/402 (2020.01) [H02J 50/10 (2016.02); H02J 50/80 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A wireless power transfer system comprising: a wireless power transmission system comprising:
a first transmission antenna configured to couple with a first receiver antenna and transmit virtual alternating current (AC) power signals to the first receiver antenna;
a second transmission antenna configured to couple with a second receiver antenna and transmit virtual direct current (DC) power signals to the second receiver antenna, at least one transmission controller that is configured to (i) provide a first driving signal for driving the first transmission antenna based on a first operating frequency and a virtual AC power frequency, and (ii) provide a second driving signal for the second transmission antenna based on a second operating frequency;
a first transmission power conditioning system including at least one first transistor that is configured to receive the first driving signal, at a gate of the at least one first transistor, and to receive a first input power signal to generate the virtual AC power signals at the first operating frequency, and the first transmission power conditioning system having rising and falling peak voltages based on the virtual AC power frequency; and
a second transmission power conditioning system including at least one second transistor that is configured to receive the second driving signal, at a gate of the at least one second transistor, and to receive a second input power signal to generate the virtual DC power signals at the second operating frequency; and
a wireless power receiver system comprising:
the first receiver antenna configured to couple with the first transmission antenna and receive the virtual AC power signals from the first transmission antenna, the first receiver antenna operating based on the first operating frequency; the second receiver antenna configured to couple with the second transmission antenna and receive the virtual DC power signals from the second transmission antenna, the second receiver antenna operating based on the second operating frequency;
a first receiver power conditioning system comprising a rectifier, wherein the rectifier is configured to convert the virtual AC power signals to AC received power signals, the first receiver power conditioning system configured to (i) receive the virtual AC power signals, (ii) convert, via the rectifier, rising and falling peak voltages of the virtual AC power signals at the virtual AC power frequency to the AC received power signals at the virtual AC power frequency, and (iii) provide the AC received power signals at the virtual AC power frequency to an AC load; and
a second receiver power conditioning system configured to (i) receive the virtual DC power signals, (ii) convert the virtual DC power signals to DC received power signals, and (iii) provide the DC received power signals to a DC load.