Patent ID: 6924466

Claim:
A device for controlling a heater of a dryer comprising: a plurality of switches, each switch having a plurality of input terminals supplied with different input voltages and an output terminal, and each switch being adapted to connect any one of the input terminals to the output terminal according to a switching control signal; a plurality of heaters, each heater corresponding to a respective one of the plurality of switches and wherein its temperature varies as a function of an input voltage supplied thereto through the respective switch, wherein each heater includes a first end and a second end, wherein the first end is connected to an output terminal of the respective switch, and the second end is connected to another one of the plurality of switches associated with an adjacent heater; and a controller controlling the switches, wherein the controller determines an output voltage of each heater depending on a desired temperature of a drying object corresponding to a laundry type, wherein said controller controls the input voltage being supplied to each heater.