US 12,081,039 B2
Multiple beam wireless power transmission system
Yoav Biderman, Tel Aviv (IL); Ortal Alpert, Ness Ziona (IL); Omer Nahmias, Aminadav (IL); Lior Golan, Ramat Gan (IL); Ran Sagi, Tel Aviv (IL); Zohar Levin, Rehovot (IL); Ori Mor, Tel Aviv (IL); Alexander Slepoy, Chandler, AZ (US); Yan Rosh, Tel Aviv (IL); and Eyal Conforti, Tel Aviv (IL)
Assigned to Wi-Charge Ltd., Rehovot (IL)
Filed by Wi-Charge Ltd., Rehovot (IL)
Filed on Aug. 13, 2021, as Appl. No. 17/401,844.
Application 17/401,844 is a continuation of application No. 16/959,537, granted, now 11,095,166, previously published as PCT/IL2019/050010, filed on Jan. 2, 2019.
Claims priority of provisional application 62/612,798, filed on Jan. 2, 2018.
Prior Publication US 2021/0384776 A1, Dec. 9, 2021
Int. Cl. H04B 10/00 (2013.01); H02J 50/30 (2016.01); H02J 50/40 (2016.01); H02J 50/80 (2016.01); H04B 10/80 (2013.01)
CPC H02J 50/30 (2016.02) [H02J 50/40 (2016.02); H02J 50/80 (2016.02); H04B 10/807 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of controlling the electrical power output of a device wirelessly charged by a wireless power beam, the method comprising:
converting the received wireless power to an electric current at a first voltage;
converting the electric current at the first voltage to an electric current at a second voltage suitable for the voltage requirements of a client load; and
if the level of the wireless power input to the device increases, such that the electric current at the second voltage is greater than the current required by the client load, thereby endangering the client load, in addition to, or as an alternative to storing the excess energy generated by the current in excess of that required by the client load, either in a capacitor, a coil or a battery, performing at least one off:
(i) retransmitting the excess energy from the device in the form of radio waves, light or infra-red energy;
(ii) converting the excess energy into heat; or
(iii) performing the conversion of the received wireless power to an electric current at an operating point that is different from the Maximum Power Point (MPP).