Electric stove having single free-zone burner and method for controlling same

An electric range having a single free-zone burner, which is an electric range for preventing interference noise generated when a single free-zone burner including two or more working coils is operated, the electric range comprising:

• a single free-zone burner including a first working coil and a second working coil;
• a controller configured to, when output stages for driving the first working coil and the second working coil are set according to set high-frequency power, output a first output signal including a first output stage signal and a first synchronization signal corresponding to the set output stage and output a second output signal including a second output stage signal and a second synchronization signal corresponding to the set output stage;
• a power supply configured to output direct current (DC) power;
• a first inverter configured to sequentially receive the first output signal and the second synchronization signal, convert the DC power into first high-frequency power according to the first output stage signal, and output the first high-frequency power to the first working coil;
• and
• a second inverter configured to sequentially receive the first synchronization signal and the second output signal, convert the DC power into second high-frequency power according to the second output stage signal, and output the second high-frequency power to the second working coil,
• wherein the first inverter and the second inverter simultaneously output the first high-frequency power and the second high-frequency power when receiving both the first synchronization signal and the second synchronization.