| 摘要 |
The portable magnetic field stimulator of the present invention has a microcontroller which sets sinusoidal wave or pulse voltage signals of different frequency, intensity, duty cycle through a manipulation interface, and inputs the signals to a pulse type voltage/current conversion circuit or sinusoidal wave type voltage/current conversion circuit. Finally, the current is transported to the stimulating coil to produce sinusoidal wave or pulse wave magnetic field having direct current level with frequency 1˜2 kHz and with magnetic flux 1˜300 Gauss. Thereby, not only the variation of frequency can be controlled but also the other subtle parameters such as duty cycle, multi wave form switching are also able to be manipulated and set, and different stimulating wave form of sinusoidal wave or pulse can also be produced. In addition, it can be applied in diversified symptoms.
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