Comparison of Pan Detection Methods for Single Switch Topology Used in Domestic Induction Cooking

• Published in: 2020 International Conference on Smart Energy Systems and Technologies (SEST) pp. 1 - 6
• Main Authors: Ozturk, Metin, Oktay, Ulas, Yilmaz, Namik, Yardibi, Hakan Suleyman, Sinirlioglu, Sercan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-09-2020
• Subjects: Electromagnetic heating; Home appliances; induction cookers; induction cooking systems; Magnetic fields; pan detection methods; Power control; Resistance; resonant converters; RLC circuits; single switch topology; Switches; Topology
• DOI: 10.1109/SEST48500.2020.9203253

This Induction heating technology is very popular in home appliances because of the user safety, efficient heating, easy cleaning and fast heating reasons. Detection of suitable receptacle or vessel is essential for domestic induction cooking applications due to user safety, over-current protection and efficient heating reasons. Especially in the single switch topology, it could be even more complicated to determine pan size and/or position compared to other topologies. In this paper three pan detection methods are presented and analyzed. First method is comparison of IGBT collector voltage or coil current with pre-defined values. Second one is comparison of single switch IGBT collector voltage VCE with DC Bus voltage VDC and the third one is evaluating anti-parallel diode current conduction time.