US 12,237,692 B2
Wireless power transfer and communication
Aleksei Agafonov, Eindhoven (NL); Pascal Leonard Maria Theodoor Lebens, Eindhoven (NL); Wilhelmus Gerardus Maria Ettes, Leeuwarden (NL); and Johannes Hubertus Gerardus Op Het Veld, Roermond (NL)
Assigned to Koninklijke Phiips N.V., Eindhoven (NL)
Appl. No. 17/778,433
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Dec. 4, 2020, PCT No. PCT/EP2020/084693
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/115965, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 19214785 (EP), filed on Dec. 10, 2019.
Prior Publication US 2023/0013685 A1, Jan. 19, 2023
Int. Cl. H02J 50/12 (2016.01); H02J 50/70 (2016.01); H02J 50/80 (2016.01); H04B 5/79 (2024.01)
CPC H02J 50/12 (2016.02) [H02J 50/70 (2016.02); H02J 50/80 (2016.02); H04B 5/79 (2024.01)] 20 Claims
OG exemplary drawing
 
1. A power transmitter comprising:
a transmitter resonant circuit,
wherein the transmitter resonant circuit comprises a power transmitting inductor,
wherein the transmitter resonant circuit has a transmission resonance at a first frequency,
wherein the power transmitting inductor is arranged to generate a power transfer signal,
wherein the power transmitting inductor is arranged to be magnetically couplable to a power receiver inductor in a power receiver;
a power transmitter driver operably coupled to the power transmitter resonant circuit, wherein the power transmitter driver is arranged to generate a drive signal for the power transmitting inductor; and
a transmitter communication resonant circuit coupled to the power transmitting inductor without significant magnetic coupling to the power transmitter inductor,
wherein the transmitter communication resonant circuit is arranged to establish a transmitter communication resonance at a second frequency,
wherein the second frequency is different from the first frequency,
wherein the power transmitting inductor contributes to the transmission resonance and the transmitter communication resonance,
wherein the transmitter resonant circuit and the transmitter communication resonant circuit are arranged to exhibit both transmission resonance and the transmitter communication resonance simultaneously.