US 12,489,320 B2
System for location and charging of wireless power receivers
Hen Markovitch, Modiin (IL); Ilanit Shapir, Rehovot (IL); Lior Golan, Ramat Gan (IL); Zohar Levin, Rehovot (IL); Omer Nahmias, Aminadav (IL); Yan Rosh, Tel Aviv (IL); Alexander Slepoy, Chandler, AZ (US); and Ortal Alpert, Ness Ziona (IL)
Assigned to Wi-Charge Ltd., Rehovot (IL)
Appl. No. 18/697,575
Filed by Wi-Charge Ltd., Rehovot (IL)
PCT Filed Sep. 30, 2022, PCT No. PCT/IL2022/051040
§ 371(c)(1), (2) Date Apr. 1, 2024,
PCT Pub. No. WO2023/053126, PCT Pub. Date Apr. 6, 2023.
Claims priority of application No. 286842 (IL), filed on Sep. 30, 2021.
Prior Publication US 2024/0413667 A1, Dec. 12, 2024
Int. Cl. H02J 50/30 (2016.01); H02J 7/35 (2006.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/30 (2016.02) [H02J 7/35 (2013.01); H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A wireless power transmitter for transmitting laser power to a receiver, the transmitter comprising:
a laser beam generator adapted to emit a laser beam, the laser beam having at least one scanning mode and at least one charging mode, the at least one scanning mode having:
(a) a lower power level than any charging mode beam, and
(b) a beam area, at least at a maximal intended operation range of the transmitter, larger than the area of any charging mode beam,
the laser beam generator further comprising at least one of:
electrically insulated connections for powering the laser beam generator, the insulated connections adapted to reduce the likelihood of an inadvertent electrical connection to the laser beam generator, and
at least one gated switch in each of the electrical connections, for controlling the flow of current through each of the electrical connections;
a detection element configured to detect if the beam is directed towards a power receiving element of the receiver; and
a controller configured to instruct a laser beam deflector to serially direct the laser beam in multiple directions, and to switch the laser beam generator from emitting a beam having at least one scanning mode to a beam having at least one charging mode when the detection element indicates that the laser beam is aimed in a direction where the presence of a power receiving element is indicated.