US 9,812,903 B2
System and method for wireless power transfer using a two half-bridge to one full-bridge switchover
Sanjaya Maniktala, Fremont, CA (US)
Assigned to Integrated Device Technology, Inc., San Jose, CA (US)
Filed by Integrated Device Technology, Inc., San Jose, CA (US)
Filed on May 1, 2015, as Appl. No. 14/702,464.
Claims priority of provisional application 62/048,128, filed on Sep. 9, 2014.
Prior Publication US 2016/0072301 A1, Mar. 10, 2016
Int. Cl. H02J 7/00 (2006.01); H02J 17/00 (2006.01); H04B 5/00 (2006.01); H02J 50/40 (2016.01)
CPC H02J 17/00 (2013.01) [H02J 50/40 (2016.02); H04B 5/0037 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless power transfer system comprising:
a controller;
first and second transmitters coupled to the controller, the first and second transmitters being coupled to one another by an electrical connection; and
a switch coupled between the electrical connection and a voltage rail;
wherein:
when the switch is closed, the controller operates the first and second transmitters in a two half-bridge mode; and
when the switch is open, the controller operates the first and second transmitters in a one full-bridge mode.