US 12,228,683 B1
Wireless power transfer via rotary link
Joshua Jones, Mountain View, CA (US); Gregory Hall, Mountain View, CA (US); and Alexander Zbrozek, Mountain View, CA (US)
Assigned to Waymo LLC, Mountain View, CA (US)
Filed by Waymo LLC, Mountain View, CA (US)
Filed on Oct. 31, 2023, as Appl. No. 18/498,179.
Application 18/498,179 is a continuation of application No. 17/137,347, filed on Dec. 29, 2020, granted, now 11,841,465.
Claims priority of provisional application 62/954,912, filed on Dec. 30, 2019.
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 7/4861 (2020.01); G01S 17/931 (2020.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01)
CPC G01S 7/4861 (2013.01) [G01S 17/931 (2020.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02)] 20 Claims
OG exemplary drawing
 
11. A system, comprising:
a first platform;
a second platform spaced apart from the first platform by a gap, wherein the second platform is configured to rotate relative to the first platform;
a light detection and ranging (LIDAR) device mounted to the second platform; and
an LLC resonant power converter configured to operate the LIDAR device in an open loop mode without feedback control, wherein the LLC resonant power converter comprises a transformer that has a primary winding and a secondary winding, wherein the primary winding is disposed on the first platform, wherein the secondary winding is disposed on the second platform, and wherein the primary winding is configured to transmit a wireless power signal to the secondary winding across the gap separating the first platform and the second platform.