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Graduate Exam Abstract


Gerald Eberhardt

M.S. Final

May 11, 2011, 2:30

Engineering E202

Design and Implementation of a Compact Highly Efficient 472KHZ Radio Frequency Generator for Electrosurgery


Abstract: This thesis explores the utilization of modern design practices and advance technologies to reduce the size of traditional 472kHz radio frequency generators used for electrosurgery. Achieving the reduced size requires an innovative approach to increase the overall efficiency to lower the internal heat dissipation allowing the overall package size to shrink. This thesis covers the selection and design process to achieving the final topology of an innovative approach utilizing a variation of the Class-D amplifier to produce a resonance type power saturation amplifier. While using a high-efficiency power source to control the amplifier voltage rails, and to control the amplitude of the output signal will produce a sinusoidal power source capable of driving a radio frequency surgical scalpel.

Adviser: Dr. George J Collins
Co-Adviser: N/A
Non-ECE Member: Dr. Hiroshi Sakurai, ME
Member 3: Dr. Howard Jay Siegel, ECE
Addional Members: Dr. Thomas Wei Chen, ECE

Publications:
N/A


Program of Study:
ECE461
ECE562
ECE472
ECE550
ECE563
ECE580
ECE681
ECE695