Electric heating – Inductive heating – With power supply system
Reexamination Certificate
2008-04-22
2008-04-22
Van, Quang (Department: 3742)
Electric heating
Inductive heating
With power supply system
C219S626000
Reexamination Certificate
active
07361870
ABSTRACT:
A supply generator for an oscillating circuit, includes an inductance (L) and a resonant capacitor (C3, C4), for operation at a fixed frequency and also includes at least one pair of transistors (I2, I2), operated on a variable cyclic regime for modifying the power. The generator includes a first diode (D5) between a first transistor (I2) and the supply for the generator and a second diode (D4) between the junction point of the inductance (L) and the resonant capacitor (C3, C4) and the junction point of the first transistor (I2) and the first diode (D5). The invention is of particular use for supply of the cooking rings on an induction cooking hob.
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Dieckerhoff S et al: “Design of an IGBT-based LCL-resonant inverter for high-frequency induction heating” Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE Phoenix, AZ, USA Oct. 3-7, 1999, Piscataway, NJ, USA, IEEE, US, Oct. 3, 1999, pp. 2039-2045, XP010355091 ISBN: 0-7803-5589-X.
Ogiwara H et al: “High frequency induction heating load resonant inverter with voltage-clamped quasi-resonant switched using newly-improved static induction transistors/thyristors and their phase shifted controlled scheme” Proceedings of the Industry Applications Society Annual Meeting. Houston, Oct. 4-9, 1992, New York, IEEE, US, vol. 1, pp. 941-948, XP010063657 ISBN: 0-7803-0635-X.
Cornec Rene
Gouardo Didier
Goumy Cédric
Fagorbrandt SAS
Van Quang
Young & Thompson
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