| CPC H02J 50/12 (2016.02) [H02J 50/005 (2020.01); H01F 38/14 (2013.01)] | 16 Claims |
|
1. A wireless power transmitter device comprising:
at least one transmitter coil configured to act as an inductive element of at least one inductive-capacitive resonator, wherein the at least one transmitter coil is configured to, upon excitation with a time-varying voltage, produce a time varying electromagnetic field configured to cause a circulating electric field through at least one receiver coil of a wireless power receiver device and thereby charge the wireless power receiver device,
wherein the at least one transmitter coil is composed of at least two spirals electrically connected to each other,
wherein the at least two spirals are oriented in space to form a composed geometric figure,
wherein the at least one transmitter coil comprises:
a first port formed by a first wire end of a first spiral of the at least two spirals,
a second port formed by a first wire end of a second spiral of the at least two spirals,
a third port formed by a second wire end of the first spiral of the at least two spirals,
a fourth port formed by a second wire end of the second spiral of the at least two spirals,
a first electrical connection electrically connecting one of the first and third ports of the first spiral with one of the second and fourth ports of the second spiral, and
a second electrical connection electrically connecting the other port of the first and third ports of the first spiral with the other port of the second and fourth ports of the second spiral, and
wherein the second electrical connection connects the first spiral and the second spiral to a capacitor or a capacitor network.
|