Project Summary
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Transcranial magnetic stimulation (TMS) is a noninvasive procedure used to stimulate areas of the body, although it has been used mostly on the brain. This stimulation occurs when the generated magnetic waves focus on a specific point and induces an electric current to stimulate the nerves in our bodies. These magnetic fields have very short time intervals, approximately 400 microseconds. The magnetic fields needed for effective TMS require an accurate control of a high current pulses.

Goal

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Our goal for this project was to create a high current amplifier that will support deep brain stimulation for TMS. We have improved on a previous semesters design while keeping the budget around $1300. Our device has successfully generated a high current output, roughly 1400 Amps with 1800 Amps capability. These outputs are based on different load resistance using different coils. The final goal for this device is to provide accurate control of the pulse while having the parts needed for a cost effective system. To reach these goals, thorough understanding of high current amplifiers and how to control pulse parameters are necessary.