Patent ID: 7946973

Claim:
A method of inducing approximately rectangular electric field pulses in a body organ with a magnetic stimulation system, the method comprising: providing a first and a second energy storage device; providing a stimulating coil; providing a first switching device electrically connected to the first energy storage device and the stimulating coil; providing a second switching device electrically connected to the second energy storage device and the stimulating coil; actuating the first switching device to electrically couple the first energy storage device to the stimulating coil for a first period of time to produce current pulses with a positive rate of change in the stimulating coil; and actuating the second switching device to electrically couple the second energy storage device to the stimulating coil for a second period of time to produce current pulses with a negative rate of change in the stimulating coil, the actuating the first and second switching devices thereby causing the stimulating coil to produce, in response to a combination of the current pulses with the positive and negative rates of change, magnetic field pulses inducing approximately rectangular electric field pulses in the body organ; positioning the stimulating coil proximate to the body organ; and exposing the body organ to the magnetic field pulses thereby inducing the approximately rectangular electric field pulses in the body organ.