US 12,155,229 B2
Wireless power transmission device
Chun Kil Jung, Seoul (KR); Hak Do Kim, Suwon-si (KR); and Sang Youn Noh, Suwon-si (KR)
Assigned to GE Hybrid Technologies, LLC, Niskayuna, NY (US)
Filed by GE Hybrid Technologies, LLC, Niskayuna, NY (US)
Filed on Jun. 16, 2023, as Appl. No. 18/336,185.
Application 18/336,185 is a continuation of application No. 17/809,578, filed on Jun. 29, 2022, granted, now 11,722,010.
Application 17/809,578 is a continuation of application No. 17/125,667, filed on Dec. 17, 2020, granted, now 11,381,113, issued on Jul. 5, 2022.
Application 17/125,667 is a continuation of application No. 16/678,373, filed on Nov. 8, 2019, granted, now 10,903,694, issued on Jan. 26, 2021.
Application 16/678,373 is a continuation of application No. 15/544,025, granted, now 10,523,055, issued on Dec. 31, 2019, previously published as PCT/KR2016/000504, filed on Jan. 18, 2016.
Claims priority of provisional application 62/104,092, filed on Jan. 16, 2015.
Prior Publication US 2023/0344276 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/12 (2016.01); H01F 38/14 (2006.01); H02J 50/40 (2016.01)
CPC H02J 50/12 (2016.02) [H01F 38/14 (2013.01); H02J 50/40 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A wireless power transmission apparatus comprising:
a primary core that includes both a primary resonant coil and a primary inductive coil, wherein a portion of the primary resonant coil and a portion of the primary inductive coil are wound together around approximately a same center point and in approximately a same plane, and wherein the primary core is configured to operate in either an inductive wireless power transmission mode using the primary inductive coil or in a resonant wireless power transmission mode using the primary resonant coil;
a switch connected through a first capacitor to one location on the primary resonant coil of the primary core and through a second capacitor to a second location on the primary resonant coil, wherein the switch is responsive to a control signal that activates or deactivates the resonant wireless power transmission mode via the switch; and
a driving circuit connected to the primary core and configured to provide a driving signal to the primary core when a wireless power reception apparatus is detected in proximity to the primary core.