Smart toy driving system for mobile terminal

A smart toy driving system for a mobile terminal, comprising:

• an audio signal generating part which is installed at the mobile terminal so as to generate an audio signal having a predetermined pattern;
• a terminal part which is connected to an audio outputting terminal of the mobile terminal so that the audio signal is transferred thereto;
• a signal converting part which receives the audio signal from the terminal part and then converts the received audio signal into a driving signal;
• and
• a driving part which receives the driving signal and operates a mechanism part so as to perform a certain action preset according to a waveform of the audio signal,
• wherein the mechanism part comprises:
• a fixing part which is coupled to the terminal part;
• and an operating part which is coupled to the fixing part so as to perform a predetermined action, and
• the driving part comprises:
• a yoke fixedly installed in the fixing part;
• a magnet fixed to the yoke and generating a magnetic field;
• and a coil installed at an end of the operating part, receiving the driving signal and generating a driving force caused by an electromagnetic interaction with the magnetic field generated from the magnet to thereby rotate the operating part,
• wherein the yoke includes a first yoke and a second yoke spaced apart from and facing the first yoke, and a third yoke disposed between the first yoke and the second yoke;
• wherein the magnet includes a first magnet fixed to an inner side of the first yoke and a second magnet fixed to an inner side of the second yoke;
• and
• wherein the coil is disposed between the first magnet and the second magnet and wound around the third yoke.