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TMS Amplifier

TMS Amplifier. Dec 14-06. Advisor - Robert Bouda Client - High Speed System Engineering Lab Faculty Advisor - Mani Mina . Our Website:

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TMS Amplifier

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  1. TMS Amplifier Dec 14-06 Advisor - Robert Bouda Client - High Speed System Engineering Lab Faculty Advisor - Mani Mina Our Website: http://dec1406.ece.iastate.edu/

  2. Team Dec14-06 Josh Abbott (Team Leader) Kaiyue Zheng(Web Master) Spencer Ulven (Communicator) Zhongheng Wang(Idea Holder) Dec 14-06

  3. TMS Overview • Transcranial Magnetic Stimulation • Support for deep brain stimulation • Research for Post Traumatic Stress Disorder, Alzheimer's, Chronic Pain, Parkinson’s, etc. Dec 14-06

  4. Problem Statement • TMS has little support for deep brain stimulation • No low cost alternative options for research development in TMS • Current designs lack enhanced control, reliability, and pulse shaping Dec 14-06

  5. Goal Create an Amplifier Control Circuit that will allow researchers to explore deep brain TMS to provide solutions for difficult brain conditions Previous Design Dec 14-06

  6. Project Scope • Produce 1000A output for a minimum of 400µs • Provide mono-phasic and bi-phasic pulse waveforms • Allow flexibility for user control Dec 14-06

  7. Circuit Concepts Dec 14-06

  8. Block Diagram Circuit Dec 14-06

  9. Design Process Dec 14-06

  10. Implementation Dec 14-06

  11. Simulation • Simulations were done by using NI Multisim • Simulations for each part of the circuit • Power supply • IGBTs • Arduino Control • Capacitor Bank Charge and Discharge • Simulation for entire circuit Dec 14-06

  12. Simulation Dec 14-06

  13. PCB Boards Dec 14-06

  14. Non-Conductive Enclosure Y: 10 inch X: 20 inch Z: 3 inch Z2: 7 inch Dec 14-06

  15. Risks MD • Biological Risks due to electromagnetic radiation. Hardware • Accidental discharge into operator • Circuit overheating Dec 14-06

  16. Safety Hardware: • LED caution • Enclosure (Non-Conductive) • Cooling fans • Fuse • Current limiter • Discharge button (on case) Software: • GUI Control Discharge • System Idle Discharge • Close GUI Discharge Dec 14-06

  17. Conclusion • Functionality and performance of the system were introduced and demonstrated • New circuit posses several characteristics for TMS application • Controllable pulse • Pulse width • Interchangeable polarity • Flexible capability and control due to Arduino • Provides platform for enhancing similar application in the future Dec 14-06

  18. Thank You Special Thanks: Advisor: Robert Bouda Faculty Advisor: Dr.Mani Mina QUESTIONS? Please visit our website at: http://dec1406.ece.iastate.edu/ Dec 14-06

  19. Appendix Dec 14-06

  20. Appendix Schedule of Design Dec 14-06

  21. Appendix Dec 14-06

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