Magnetic stimulation device having planar coil structure

A magnetic stimulation device having coil structure, comprising:

• a power supply module, providing electric power;
• a current control module, electrically connected with the power supply module, comprising:
• a signal generator, generating a current waveform signal;
• and
• a current switch, electrically connected with the signal generator, adjusting a waveform of the current from the power supply module with the current waveform signal to form an adjusted output current;
• and
• at least one planar coil module, comprising:
• a first insulating substrate;
• and
• a planar coil, formed on the first insulating substrate where two ends of the planar coil and the current switch form a loop, receiving the adjusted output current to generate a corresponding varying intensity magnetic field,
• wherein, if the number of the planar coil module is one, the planar coil is directly electrically connected with the current switch;
• if the number of the planar coil module planar coil module is more than one, end points of the planar coils of adjacent two planar coil modules are connected and unconnected endpoints of the planar coils of the first and the last planar coil modules are directly electrically connected with the current switch.