Microwave oven and method of controlling the same

A microwave oven having a cooking cavity, comprising:

• a plurality of electrical heaters that are rotatably disposed in the cooking cavity;
• a heater drive unit that rotates the plurality of the electrical heaters in a common cooking mode at a common angle;
• and
• a heater position detection unit having a single detector that detects respective vertical positions where the plurality of the electrical heaters, respectively, are vertically positioned, and respective horizontal positions where the plurality of the electrical heaters, respectively are horizontally positioned.

A method of controlling a microwave oven, the microwave oven having one or more detectors detecting respective rotation positions of plural electrical heaters, comprising:

• checking operation states of the one or more detectors when power is supplied;
• rotating the plural electrical heaters until the respective rotation positions of the plural electrical heaters are respective initial positions;
• and
• performing cooking after adjusting the respective rotation positions of the plural electrical heaters to a set of corresponding rotation positions of the plural electrical heaters, which are corresponding positions among the plural electrical heaters, of two or more sets of corresponding rotation positions of the plural electrical heaters according to a selected cooking mode after the respective rotation positions of the plural electrical heaters are rotated to the respective initial positions.

A microwave oven having a cooking cavity, comprising:

• plural heaters moveably disposed in the cooking cavity;
• a heater drive unit to move the plural heaters;
• and
• a heater detection unit having one or more detectors to detect respective positions of the plural heaters using the one or more detectors, a number of the detectors being less than a number of cooking modes of the microwave oven.

A method of controlling a microwave oven, the microwave oven having one or more detectors detecting respective positions of plural heaters, comprising:

• checking operation states of the one or more detectors when power is supplied;
• moving the plural heaters until the respective positions of the plural heaters are respective initial positions;
• adjusting the respective positions of the plural heaters to a set of corresponding positions, which are positions corresponding among the plural heaters, of plural sets of corresponding positions according to a selected cooking mode after the plural heaters are moved to the respective initial positions;
• and
• cooking the food after the adjusting.