US 12,489,315 B2
Wide-range power-regulation method for wireless power receiving units by using hybrid multi-level topologies
Eli Abramov, Beer-Sheva (IL); and Alon Cervera, Netzer Sereni (IL)
Assigned to CAPOW TECHNOLOGIES LTD, Beer Sheva (IL)
Appl. No. 18/875,146
Filed by CAPOW TECHNOLOGIES LTD, Beer Sheva (IL)
PCT Filed Jun. 14, 2023, PCT No. PCT/IL2023/050617
§ 371(c)(1), (2) Date Dec. 15, 2024,
PCT Pub. No. WO2023/242847, PCT Pub. Date Dec. 21, 2023.
Claims priority of application No. 293996 (IL), filed on Jun. 15, 2022.
Prior Publication US 2025/0167591 A1, May 22, 2025
Int. Cl. H02J 50/00 (2016.01); H02J 50/05 (2016.01); H02M 1/00 (2006.01); H02M 3/07 (2006.01); H02M 3/08 (2006.01)
CPC H02J 50/05 (2016.02) [H02M 1/0048 (2021.05); H02M 1/007 (2021.05); H02M 3/072 (2021.05); H02M 3/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power-regulation method for a Power Receiving Unit (PRU) of an RWPT system, comprising:
a) connecting a load to said PRU via an ML post-regulation stage;
b) determining target/predicted values for voltage and current of a Power Transmitting Unit (PTU) of said RWPT system;
c) determining wireless medium characteristics and a resonant frequency of said RWPT system;
d) generating an overall system model by using First Harmonic Approximation (FHA);
e) determining a desired output power;
f) calculating a voltage VS1 of a first harmonic;
g) using VS1 to calculate an equivalent reflected impedance Z0 of said load; and
h) calculating a duty-cycle d using predicted values of an efficiency η of a conversion ratio M(D) and said calculated equivalent reflected impedance Z0.