US 12,081,036 B2
Control system and control method
Takeshi Ide, Kamakura (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 17, 2022, as Appl. No. 18/047,121.
Application 18/047,121 is a continuation of application No. 16/877,281, filed on May 18, 2020, granted, now 11,502,548.
Claims priority of application No. 2019-097072 (JP), filed on May 23, 2019.
Prior Publication US 2023/0113295 A1, Apr. 13, 2023
Int. Cl. H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/12 (2016.02) [H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 15 Claims
OG exemplary drawing
 
1. A control system comprising:
a power transmitting coil for wirelessly transmitting power supplied from a power source;
a power receiving coil for wirelessly receiving power by electromagnetic coupling between the power transmitting coil and the power receiving coil;
a driving circuit configured to drive a load portion using the power received via the power receiving coil;
a transmitting coupler for wirelessly transmitting a transmission signal generated based on a clock signal and a signal for sign switching that is used to switch a sign of a voltage for driving the load portion;
a receiving coupler for wirelessly receiving the transmission signal by electromagnetic coupling between the transmitting coupler and the receiving coupler; and
a generation circuit configured to generate a driving signal for controlling the driving circuit from the transmission signal received via the receiving coupler,
wherein the driving circuit includes a combined circuit that combines a synchronous rectification circuit that receives, as an input voltage, a voltage output from the power receiving coil and a sign switching circuit that switches a sign of a voltage output from the synchronous rectification circuit.