Design of a 10 kW, 500 kHz phase-shift controlled series-resonant inverter for induction heating

Design of a 10 kW, 500 kHz phase-shift controlled series-resonant inverter for induction heating

A phase-shift-controlled series-resonant inverter is used as power supply for a 10 kW, 500 kHz induction heating system. Analysis of the system for power regulation with zero voltage switching is presented, including the effect of MOSFET output capacitance. A control scheme is proposed to ensure swi...

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Bibliographische Detailangaben
Hauptverfasser: Grajales, L., Sabate, J.A., Wang, K.R., Tabisz, W.A., Lee, F.C.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Capacitance
Inverters
MOSFET circuits
Power MOSFET
Power supplies
Prototypes
Resonance
Switches
Switching frequency
Zero voltage switching
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Zusammenfassung:A phase-shift-controlled series-resonant inverter is used as power supply for a 10 kW, 500 kHz induction heating system. Analysis of the system for power regulation with zero voltage switching is presented, including the effect of MOSFET output capacitance. A control scheme is proposed to ensure switch turn-on with zero-voltage for all load conditions. The switching frequency is kept as close as possible to resonance to maintain near-minimal circulating energy. A prototype power supply was built and tested at 10 kW.< >
DOI:10.1109/IAS.1993.298997