US 11,877,373 B2
Cooking apparatus and control method thereof
Ji Woong Choi, Suwon-si (KR); Sang Min Park, Suwon-si (KR); Byoung Kuk Lee, Suwon-si (KR); Eun Soo Jang, Suwon-si (KR); Dong Myoung Joo, Suwon-si (KR); Hong-Joo Kang, Suwon-si (KR); Nam Ju Park, Suwon-si (KR); Chang Sun Yun, Suwon-si (KR); and Hyun Kwan Lee, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Appl. No. 17/057,979
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
PCT Filed May 24, 2019, PCT No. PCT/KR2019/006273
§ 371(c)(1), (2) Date Nov. 23, 2020,
PCT Pub. No. WO2019/226019, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 10-2018-0059579 (KR), filed on May 25, 2018.
Prior Publication US 2021/0267024 A1, Aug. 26, 2021
Int. Cl. H05B 6/08 (2006.01); H05B 6/12 (2006.01)
CPC H05B 6/08 (2013.01) [H05B 6/1209 (2013.01); H05B 2213/05 (2013.01); H05B 2213/07 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cooking apparatus comprising:
a coil on which a vessel is placeable, and configured to form a magnetic field upon application of a current;
a first switch and a second switch connected to the coil and serially connected to each other;
a first capacitor and a second capacitor connected between one end of the first switch and the second switch and the coil, and connected in parallel to each other;
a relay switch connected to one end of the second capacitor;
a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and
a controller configured to determine a type of the vessel placed on the coil according to a power value calculated based on the detected input current and input voltage, and determine a heating mode of the cooking apparatus based on the determined type of vessel,
wherein the controller is configured to:
determine the heating mode as a first mode for turning off the relay switch based on the determination that the type of the vessel placed on the coil is a non-ferromagnetic vessel, and
determine the heating mode as a second mode for turning on the relay switch based on the determination that the type of the vessel placed on the coil is a non-ferromagnetic vessel.