Electronic System for Graphical Representation on Cooking Surfaces of Domestic Induction Hobs

LED lighting technology provides new functionalities to the systems in which it is incorporated. In the particular case of induction cooktops, the light elements have been used to transmit information to the user and have generally been placed outside the area occupied by the inductor. Several interference and temperature issues have arisen when electronic components have been placed on areas nearby the inductor. In this paper, the design of a panel of configurable LEDs that is capable of representing information in a domestic induction cooker placed in the cooking surface is presented. The presence of electronics devices in this part of the inductor cooker can present two main problems, thermal stress as well as electromagnetic interference. Minimization of electromagnetic interference was addressed by describing this effect from the simulation point of view in order to propose solutions based on the optimized routing of the printed circuit board of the electronics. Finally, a fully functional prototype has been built.