An induction cooktop suitable for heating cooking vessels of at least two different diameters, comprising, - at least one cooking zone having more than one concentric and nested area (14, 15), - more than one concentric inner and outer coil (3, 4) disposed one within the other, forming the areas (14,15) of the cooking zone, - more than one generator (1,2) providing the driving of the inner and outer coils (3, 4) separately and - a sensor unit that detects the electrical loads of the coils (3, 4) when the cooking vessel is placed on the cooking zone, characterized by a control unit - that first operates the generator corresponding to the outermost area when the cooking zone is operated by the user and enables the coil forming the outermost area to be driven by the drive signal through a PWM signal line, - that determines whether or not the cooking vessel placed on the cooking zone covers the outermost area depending on the relation of the respective coil current detected by the sensor unit and the drive signal, - that provides the driving of the coils (3, 4) forming the outermost area and the inner areas by the generators (1, 2) when the cooking vessel placed on the cooking zone is determined to cover the outermost area, - that repeats the above steps for each of the inner areas from the outside inwards in that order until reaching the innermost area when the cooking vessel placed on the cooking zone is determined not to cover the outermost area, - that enables the generators (1, 2) to drive the coils (3, 4) forming the areas (14, 15) covered by the cooking vessel placed on the cooking zone with signals of the same frequencies, wherein - the generators (1,2) provide the driving of each coil (3, 4) by a PWM drive signal, and - the control unit that enables the coils (3, 4) covered by the cooking vessel placed on the cooking zone to be driven by the generators (1, 2) depending on an input of the user with a PWM drive signal such that the coils (3,4) transmit approximately the same amount of energy to the cooking vessel for every unit area. - at least one cooking zone having more than one concentric and nested area (14, 15), - more than one concentric inner and outer coil (3, 4) disposed one within the other, forming the areas (14,15) of the cooking zone, - more than one generator (1,2) providing the driving of the inner and outer coils (3, 4) separately and - a sensor unit that detects the electrical loads of the coils (3, 4) when the cooking vessel is placed on the cooking zone, - that first operates the generator corresponding to the outermost area when the cooking zone is operated by the user and enables the coil forming the outermost area to be driven by the drive signal through a PWM signal line, - that determines whether or not the cooking vessel placed on the cooking zone covers the outermost area depending on the relation of the respective coil current detected by the sensor unit and the drive signal, - that provides the driving of the coils (3, 4) forming the outermost area and the inner areas by the generators (1, 2) when the cooking vessel placed on the cooking zone is determined to cover the outermost area, - that repeats the above steps for each of the inner areas from the outside inwards in that order until reaching the innermost area when the cooking vessel placed on the cooking zone is determined not to cover the outermost area, - that enables the generators (1, 2) to drive the coils (3, 4) forming the areas (14, 15) covered by the cooking vessel placed on the cooking zone with signals of the same frequencies, - the generators (1,2) provide the driving of each coil (3, 4) by a PWM drive signal, and - the control unit that enables the coils (3, 4) covered by the cooking vessel placed on the cooking zone to be driven by the generators (1, 2) depending on an input of the user with a PWM drive signal such that the coils (3,4) transmit approximately the same amount of energy to the cooking vessel for every unit area.