INDUCTION HEATING APPARATUS AND METHOD FOR CONTROLLING THE SAME

In one embodiment, a controller measures resonance current of a working coil, measures driving voltage of a switching element included in an inverter circuit that supplies current to the working coil, generates a phase margin pulse based on the resonance current and the driving voltage, compares the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JANG, Ho Yong, KANG, Kyelyong
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	In one embodiment, a controller measures resonance current of a working coil, measures driving voltage of a switching element included in an inverter circuit that supplies current to the working coil, generates a phase margin pulse based on the resonance current and the driving voltage, compares the phase margin pulse with a switching signal and determines a driving state of the induction heating apparatus, and controls driving of the working coil based on the driving state of the induction heating apparatus. Additionally, in embodiments, when it is determined that a driving frequency of the working coil is included in a capacitive area, the induction heating apparatus stops from operating, or a driving frequency of the working coil is set again.