scholarly journals Dual Frequency Output Quasi-Resonant Inverter for Induction Heating

2001 ◽  
Vol 121 (5) ◽  
pp. 563-568 ◽  
Author(s):  
Shizumasa Okudaira ◽  
Kouki Matsuse
Keyword(s):  
Induction Heating ◽  
Dual Frequency ◽  
Resonant Inverter ◽  
Frequency Output

scholarly journals Sensorless Control of Voltage Peaks in Class-E Single-Ended Resonant Inverter for Induction Heating Rice Cooker

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4545
Author(s):  
Yongseung Oh ◽  
Jaeeul Yeon ◽  
Jayoon Kang ◽  
Ilya Galkin ◽  
Wonsoek Oh ◽  
...  
Keyword(s):  
High Pressure ◽  
Breakdown Voltage ◽  
Induction Heating ◽  
Control Method ◽  
Supply Voltage ◽  
Bipolar Transistors ◽  
Insulated Gate Bipolar Transistors ◽  
Voltage Fluctuations ◽  
Resonant Inverter ◽  
Do So

Single-ended (SE) resonant inverters are widely used as power converters for high-pressure rice cooker induction, with 1200 V insulated-gate bipolar transistors (IGBTs) being used as switching devices for kW-class products. When voltage fluctuations occur at the input stage of an SE resonant inverter, the resonant voltage applied to the IGBT can be directly affected, potentially exceeding the breakdown voltage of the IGBT, resulting in its failure. Consequently, the resonant voltage should be limited to below a safety threshold—hardware resonant voltage limiting methods are generally used to do so. This paper proposes a sensorless resonant voltage control method that limits the increase in the resonant voltage caused by overvoltage or supply voltage fluctuations. By calculating and predicting the resonance voltage through the analysis of the resonance circuit, the resonance voltage is controlled not to exceed the breakdown voltage of the IGBT. The experimental results of a 1.35 kW SE resonant inverter for a high-pressure induction heating rice cooker were used to verify the validity of the proposed sensorless resonant voltage limiting method.

An Improved $LLC$ Resonant Inverter for Induction-Heating Applications With Asymmetrical Control

2011 ◽  
Vol 58 (7) ◽  
pp. 2915-2925 ◽  
Author(s):  
Saichol Chudjuarjeen ◽  
Anawach Sangswang ◽  
Chayant Koompai
Keyword(s):  
Induction Heating ◽  
Resonant Inverter
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