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Domestic induction hobs with adaptable-size burners are under development in order to improve the flexibility of the apparatus by adapting the active area to the size of the vessel. Such burners are implemented by means of several small ring-type closely-arranged coils, each one of them supplied by a resonant inverter. Its activation depends on the size and the shape of the pot. The basic winding...
Adaptable-diameter inductors are being implemented in domestic induction hobs in order to increase the range of suitable pot's diameters and to achieve a better use of the installed power electronics. Such inductors are arranged by means of several concentric planar windings, usually up to two or three units, each one of them comprising several Litz-wire turns. Normally, one resonant inverter is dedicated...
Integral expressions of the equivalent impedance of flat-type coils for induction heating systems are derived. These expressions are obtained by integration the analytical solution of the field generated by a circular filamentary current placed between two linear and homogeneous semi-infinite media. It is considered that the windings are wound with a round wire. The model also gives the magnetic field...
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