Patent ID: 9474106
Filing Date: 2016-10-18
CPC Classification: H05B

Claim Text:
1. An apparatus for controlling a heating element of an electric range, the apparatus comprising: a plurality of heating elements; an input unit configured to input an output adjustment value for each of the plurality of heating elements by a user; a calculation unit configured to calculate a sum of output power of each heating element corresponding to the output adjustment value input by the input unit; a controller configured to compare the sum of output power calculated by the calculation unit with a predetermined power limit and linearly controls output of each heating element based on a result of comparison; and a measurement unit configured to measure at least one of a current and a voltage applied to each heating element after linearly controlling output of each heating element, wherein the calculation unit is configured to calculate real power consumption of each heating element based on the at least one of the current and the voltage measured by the measurement unit, wherein, when a sum of real power consumption of the plurality of heating elements is different from the predetermined power limit over a set range, the controller is configured to up or down control output of each heating element that is currently driven among the plurality of heating elements until the difference value is within the set range, and when the sum of real power consumption of the plurality of heating elements is reduced over the set range compared to the sum of output power, the controller is configured to up control output of each heating element that is currently driven among the plurality of heating elements based on a value reduced compared to the sum of output power.