US 11,996,699 B2
Receiving unit, transmission unit, power transmission system and method for wireless power transmission
Samuel Vasconcelos Araujo, Esslingen (DE); and Michael Jiptner, Besigheim (DE)
Assigned to Kardion Gmbh, Stuttgart (DE)
Appl. No. 17/051,405
Filed by KARDION GMBH, Stuttgart (DE)
PCT Filed May 2, 2019, PCT No. PCT/EP2019/061320
§ 371(c)(1), (2) Date Jul. 26, 2021,
PCT Pub. No. WO2019/211414, PCT Pub. Date Nov. 7, 2019.
Claims priority of application No. 102018206725.2 (DE), filed on May 2, 2018.
Prior Publication US 2021/0399582 A1, Dec. 23, 2021
Int. Cl. H02J 50/10 (2016.01); A61M 60/873 (2021.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01); H02J 50/12 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/10 (2016.02) [A61M 60/873 (2021.01); H02J 7/00711 (2020.01); H02J 50/12 (2016.02); H02J 50/90 (2016.02); H02J 7/00034 (2020.01)] 19 Claims
OG exemplary drawing
 
15. A system for wireless power transmission, the system comprising:
a transmitter unit comprising an inverter and a primary coil configured to be supplied with a supply voltage; and
a receiver unit comprising a secondary coil and an energy storage unit, the energy storage unit configured to cause a current flowing through the secondary coil and repeatedly generate an energy pulse until a charging process of the energy storage unit is detected, the energy pulse configured to cause an induced voltage in the primary coil,
wherein when a value of the induced voltage in the primary coil satisfies a predetermined condition, the inverter of the transmitter unit is configured to apply the supply voltage to the primary coil for wireless power transmission between the transmitter unit and the receiver unit.