Electronic device and method of controlling electronic device

An electronic device comprising:

• means for generating plural output voltages from an input voltage and outputting the various output voltages from respective plural power supply channels;
• means for monitoring voltages of two power supply channels among plural power supply channels which are different in decreases of the output voltage when the input voltage is cut off;
• means for outputting a first detecting signal upon detecting a decrease in voltage of a first power supply channel having a fast decrease to a first threshold;
• means for outputting a second detecting signal upon detecting a decrease in voltage of a second power supply channel having a slow decrease to a second threshold;
• and
• means for saving data upon receiving the first detecting signal and for stopping an operation of the electronic device upon receiving the second detecting signal.

A method of controlling an electronic device, comprising steps of:

• generating plural output voltages from an input voltage and outputting the various output voltages from respective plural power supply channels;
• outputting a first detecting signal upon detecting a decrease in voltage of a first power supply channel having a fast decrease to a first threshold;
• outputting a second detecting signal upon detecting a decrease in voltage of a second power supply channel having a slow decrease to a second threshold;
• saving data into a non-volatile memory from a volatile memory upon receiving the first detecting signal;
• and
• stopping an operation of the electronic device upon receiving the second detecting signal.