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Boost-half-bridge edge resonant soft switching PWM high-frequency inverter for consumer induction heating appliances

Boost-half-bridge edge resonant soft switching PWM high-frequency inverter for consumer induction heating appliances

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Published

A novel soft-switching PWM utility frequency AC to high-frequency AC power conversion circuit, incorporating boost-half-bridge inverter topology, which is more suitable and acceptable for cost effective consumer induction heating applications, is presented. The operating principle and the operation modes are described using equivalent circuits with the operating voltage and current waveforms. The operating performances are illustrated and evaluated, including the power regulation and power conversion efficiency against duty cycle characteristics based on the power dissipation as compared with those of the previously developed high-frequency inverter. The practical effectiveness of the power converter is substantially proved, based on experimental results from a practical design example.

Inspec keywords: resonant invertors; AC-AC power convertors; induction heating; switching convertors; bridge circuits; consumer products; domestic appliances

Other keywords: consumer induction heating appliances; boost-half-bridge edge resonant soft switching; PWM high-frequency inverter; duty cycle characteristics; equivalent circuits; power dissipation; AC-AC conversion circuit

Subjects: Process heating; Domestic appliances; Power convertors and power supplies to apparatus

References

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      • Hishikawa, S., Serguei, M., Nakaoka, M., Hirota, I., Omori, H., Terai, H.: `New circuit topology of soft switching single-ended high frequency inverter using IGBTs', Vol. 100, No. 628, pp. 19–24, Technical Report of IEICE-J Energy Electronics Professional Meeting, February 2000.
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      • Muraoka, H., Nakaoka, M., Sakamoto, K.: `High-frequency PWM forward converter with auxiliary active clamped capacitor for low voltage high current operation', Proc. IEEE Power Electronics Specialists Conf. (PESC), July 2001, Vancouver, Canada, 3, p. 1523–1528.
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      • Sadakata, H., Terai, H., Omori, H., Yamasita, H., and Nakaoka, M.: ‘The development of ZCS-PWM-SEPP inverter with complexed control method’, IEEJ SPC-03-30, February 2003.
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      • Kaneda, M., Tanaka, H., Nakaoka, M.: `A novel prototype of single-ended push-pull soft-switching high-frequency inverter using a single auxiliary ZVS-PWM switch', Vol. 100, No. 628, pp. 31–37, Technical Report of IEICE-J Energy Electronics Professional Meeting, February 2000.
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      • H. Sugimura , N.A. Ahmed , T. Ahmed , H.-W. Lee , M. Nakaoka . Utility AC fequency to high frequency AC power conversion circuit with soft switching PWM strategy. KIEE Int. Trans. Electr. Mach. Energy Convers. Syst. , 2 , 181 - 188
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      • Yasui, K., Kitaizumi, T., Bessyo, D., Omori, H., Terai, H.M., Abdullah Al, Nakaoka, M.: ‘Latest development of soft switching inverter power supply using active clamp scheme with a charge up function for magnetron drive’, IEEJ PCC-Osaka, April 2002, Vol. 3, pp. 1484–1489.
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      • Bessyo, D., Yasui, K., Omori, H., Terai, H., Nakaoka, M.: `The inverter circuit skills to realize low-cost, compact-size power supply for microwave oven, and the advantages of improved defrosting', Proc. IEEE-IAS Int. Appliance Technical Conf., April 2000.
    8. 8)
      • N.A. Ahmed , T. Iwai , H. Omori , H.W. Lee , M. Nakaoka . A novel auxiliary edge-resonant snubber- assisted soft switching PWM high frequency inverter with series capacitor compensated resonant load for consumer induction heating. KIPE J. Power Electron. , 2 , 95 - 103
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