US 12,316,128 B2
Multi-layer-multi-turn structure for high efficiency wireless communication
Vinit Singh, Austin, TX (US); and Christine A. Frysz, Orchard Park, NY (US)
Assigned to NuCurrent, Inc., Chicago, IL (US)
Filed by NuCurrent, Inc., Chicago, IL (US)
Filed on Feb. 26, 2024, as Appl. No. 18/587,546.
Application 18/587,546 is a continuation of application No. 17/966,542, filed on Oct. 14, 2022, granted, now 11,916,400.
Application 17/966,542 is a continuation of application No. 15/227,192, filed on Aug. 3, 2016, granted, now 11,476,566, issued on Oct. 18, 2022.
Application 15/227,192 is a continuation in part of application No. 14/059,100, filed on Oct. 21, 2013, granted, now 9,444,213, issued on Sep. 13, 2016.
Application 14/059,100 is a continuation in part of application No. 13/233,686, filed on Sep. 15, 2011, granted, now 8,567,048, issued on Oct. 29, 2013.
Application 13/233,686 is a continuation in part of application No. 13/255,659, granted, now 8,855,786, issued on Oct. 7, 2014, previously published as PCT/US2010/000714, filed on Mar. 9, 2010.
Claims priority of provisional application 61/158,688, filed on Mar. 9, 2009.
Prior Publication US 2024/0348091 A1, Oct. 17, 2024
Int. Cl. H01F 5/00 (2006.01); A61N 1/05 (2006.01); A61N 1/372 (2006.01); A61N 1/378 (2006.01); H01F 7/06 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 29/02 (2006.01); H01F 38/14 (2006.01); H01F 41/00 (2006.01); H01F 41/04 (2006.01); H01Q 1/38 (2006.01); H01Q 7/00 (2006.01); H01R 43/00 (2006.01); H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02P 13/00 (2006.01); H03H 7/01 (2006.01); H04B 5/24 (2024.01); H04B 5/45 (2024.01); H04B 5/77 (2024.01); H04B 5/79 (2024.01); H05B 6/06 (2006.01); H05B 6/12 (2006.01); H05B 6/36 (2006.01); A61N 1/36 (2006.01); A61N 1/375 (2006.01); B33Y 80/00 (2015.01); H04B 5/72 (2024.01); H05K 1/16 (2006.01)
CPC H02J 50/005 (2020.01) [A61N 1/0553 (2013.01); A61N 1/37229 (2013.01); A61N 1/3787 (2013.01); H01F 5/00 (2013.01); H01F 5/003 (2013.01); H01F 7/06 (2013.01); H01F 17/00 (2013.01); H01F 17/0006 (2013.01); H01F 27/2804 (2013.01); H01F 29/02 (2013.01); H01F 38/14 (2013.01); H01F 41/00 (2013.01); H01F 41/04 (2013.01); H01F 41/041 (2013.01); H01Q 1/38 (2013.01); H01Q 7/00 (2013.01); H01R 43/00 (2013.01); H02J 50/12 (2016.02); H02P 13/00 (2013.01); H03H 7/01 (2013.01); H04B 5/24 (2024.01); H04B 5/45 (2024.01); H04B 5/77 (2024.01); H04B 5/79 (2024.01); H05B 6/06 (2013.01); H05B 6/1245 (2013.01); H05B 6/36 (2013.01); H05B 6/362 (2013.01); A61N 1/3605 (2013.01); A61N 1/3756 (2013.01); B33Y 80/00 (2014.12); H01F 17/0013 (2013.01); H01F 2027/2809 (2013.01); H04B 5/72 (2024.01); H05K 1/165 (2013.01); H05K 2201/0352 (2013.01); Y02B 40/00 (2013.01); Y10T 29/49005 (2015.01); Y10T 29/4902 (2015.01); Y10T 29/4908 (2015.01); Y10T 29/49117 (2015.01); Y10T 29/49155 (2015.01); Y10T 29/49195 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A system for wireless transfer of power, the system comprising:
a first device comprising:
a transmitting antenna for wireless transfer of power; and
a power source configured to supply power to the transmitting antenna; and
a second device comprising:
a receiving antenna for wireless transfer of power, the receiving antenna comprising a multi-layer, multi-turn inductor structure including:
a first conductive layer comprising a first plurality of conductive traces arranged in a multi-turn coil configuration, wherein each of the first plurality of conductive traces have two ends, wherein each of the first plurality of conductive traces provides a respective current path within the multi-layer, multi-turn inductor structure that is configured to carry induced alternating current from a respective first end of each of the first plurality of conductive traces' two ends to a respective second end of each of the first plurality of conductive traces' two ends, and wherein each respective pair of adjacent conductive traces within the first plurality of conductive traces is separated by a respective insulating material such that a first one of the respective pair of conductive traces is on a first side of the respective insulating material and a second one of the respective pair of conductive traces is on a second side of the respective insulating material;
a second conductive layer comprising a second plurality of conductive traces arranged in a multi-turn coil configuration, wherein each of the second plurality of conductive traces have two ends, wherein each of the second plurality of conductive traces provides a respective current path within the multi-layer, multi-turn inductor structure that is configured to carry induced alternating current from a respective third end of each of the second plurality of conductive traces' two ends to a respective fourth end of each of the second plurality of conductive traces' two ends, and wherein each respective pair of adjacent conductive traces within the second plurality of conductive traces is separated by the respective insulating material such that a first one of the respective pair of conductive traces is on a first side of the respective insulating material and a second one of the respective pair of conductive traces is on a second side of the respective insulating material;
a first connection point at which the respective first ends of the first plurality of conductive traces are electrically connected;
a second connection point at which the respective second ends of the first plurality of conductive traces are connected in series with the respective third ends of the second plurality of conductive traces; and
a third connection point at which the respective fourth ends of the second plurality of conductive traces are electrically connected;
a rechargeable battery; and
transfer circuitry configured to transfer alternating current from the receiving antenna to the rechargeable battery,
wherein the transmitting antenna is configured to produce an external magnetic field for wireless transfer of power at a frequency within a given frequency range when the power source is supplying power to the transmitting antenna; and
wherein the multi-layer, multi-turn inductor structure of the receiving antenna is configured for wireless transfer of power within the given frequency range such that, when the receiving antenna is in a near field of the transmitting antenna while it is generating the external magnetic field for wireless transfer of power at the frequency within the given frequency range, an alternating current is capable of being induced in the multi-layer, multi-turn inductor structure that flows through both the first and second pluralities of conductive traces and is provided to the rechargeable battery via the transfer circuitry.