Induction cooker

An induction cooker, comprising:

• a heating module capable of generating eddy currents in a cookware;
• a working inverter capable of outputting high-frequency power to drive the heating module;
• and
• a power supply module connected to the working inverter, wherein the power supply module includes:
• an alternating current (AC) power port capable of outputting an AC source by utility power;
• a bridge diode connected to the AC power port, wherein the bridge diode is configured to convert the AC source into a first direct current (DC) power;
• a battery unit capable of outputting a second DC power;
• a power switch connected to the bridge diode and the battery unit, wherein the power switch is configured to switch the first DC power and the second DC power that are input to the working inverter;
• and
• a control unit connected to the power switch and the working inverter, wherein the control unit is configured to control the power switch to input the first DC power or the second DC power to the working inverter, so as to generate the high-frequency power, and wherein the first DC power has a working voltage that is sufficient to be converted into the high-frequency power for driving the heating module, and a difference between a voltage of the second DC power and the working voltage is less than or equal to 5% of the working voltage.