US 12,316,139 B2
Wireless power transfer transmitter, system and method of wirelessly transferring power
Samer Aldhaher, Mount Pearl (CA); Samuel Robert Cove, Mount Pearl (CA); and Ahmad Almudallal, Mount Pearl (CA)
Assigned to Solace Power Inc., Mount Pearl (CA)
Filed by Solace Power Inc., Mount Pearl (CA)
Filed on Mar. 5, 2021, as Appl. No. 17/193,539.
Claims priority of provisional application 63/055,732, filed on Jul. 23, 2020.
Claims priority of provisional application 62/986,000, filed on Mar. 6, 2020.
Prior Publication US 2021/0281122 A1, Sep. 9, 2021
Int. Cl. H02J 50/70 (2016.01); H01F 27/38 (2006.01); H01F 38/14 (2006.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01)
CPC H02J 50/70 (2016.02) [H01F 27/38 (2013.01); H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/40 (2016.02)] 12 Claims
OG exemplary drawing
 
1. An apparatus for use in a magnetic induction wireless power transfer system, the apparatus comprising:
at least one booster coil positioned adjacent an active coil of a magnetic induction wireless power transfer system, wherein the booster coil is separate and distinct from the active coil, and a plane defined by the booster coil is non-coplanar with a plane defined by the active coil; and
a capacitor electrically connected to the booster coil, a capacitance of the capacitor selected such that an amplitude of a current in the booster coil is constant and approximately equal to an amplitude of a current in the active coil during wireless power transfer, and a phase of the current in the booster coil is constant and approximately equal to a phase of the current in the active coil during wireless power transfer, wherein a resonant frequency of the apparatus is higher than an operating frequency of the magnetic induction wireless power transfer system.