Resume 11

Personal

Department of Electrical & Computer Engineering
Montgomery University, AL

ECE Dept. Montgomery University, Montgomery, AL, Current
Ph.D Candidate, Graduation scheduled in 2002, Summer Dissertation finished
Major area: Power Electronics
Minor area: Control Systems

People University of Science and Technology, Harbin, China, June 1997
M.S., Electrical Engineering.

People University of Science and Technology, Harbin, China, July 1993
Diploma, Electrical Engineering.

Arts of modern power supply, UPS, ballast, motor drive, embedded control system and IC design related to power supply system, magnetic components, modeling, control, simulation, topologies, soft switching techniques for inverters and converters, power factor correction, motion control, etc.

Conducting research in soft-switching switching technique for inverters for motor drive and UPS

Developing switch power supply for industrial high power CO2 lasers

Developing power and control system for industrial high power CO2 lasers

Montgomery University Research Fellowship, 2001, 2002

• IEEE Student Member
• IEEE Power Electronics Society Student Member
• IEEE Industrial Electronics Society Student Member
• IEEE Industry Applications Society Student Member
• IEEE Control System Society Student Member
• IEEE Electron Devices Society Student Member

• Tae Dong and Gary Evans, "Simulation and Analysis of Three-Phase Auxiliary Resonant Commutated Pole Inverter for Induction Motor Drive" , 35th Intersociety Energy Conversion Engineering Conference, July 2001
• Bill Dillard, Tae Dong, R. Gary Evans, etc. "Comparison of DC-DC Converter Topologies for High Voltage SSP Systems" , 35th Intersociety Energy Conversion Engineering Conference, July 2001
• Tae Dong, Yang Yang and Jiarong Li, "A Real Time Power Monitor for High Power CO2 Laser", Instrument Technology China , pp19-21, January, 1997

• Tae Dong, Camille A. Arcidi, Gary Evans "Analysis and Simulation of Same Cycle Transient Control SCTC for Application in Voltage Regulator Modules VRMs" , 37th Intersociety Energy Conversion Engineering Conference, July 2002
• Tae Dong, Gary Evans, "A Low Cost Resonant Snubber Inverter for Uninterruptible Power Supply Application" 37th Intersociety Energy Conversion Engineering Conference, July 2002

• Tae Dong, Gary Evans, "State Plane Analysis of An Auxiliary Resonant Commutated Pole Inverter and Implementation With Load Current Adaptive Fixed Timing Control" , The 28th Annual Conference of the IEEE Industrial Electronics Society, Nov. 2002

• Proficiency in Power Electronics, converter and inverter design, including circuit, magnetic, modeling, control.
• Proficiency in microprocessor systems, embedded systems.
• Proficiency in computer simulation, including simulation in Pspice, Matlab and Simulink.
• Strong background in control, device, microelectronics and other related area in electrical engineering.
• Complete experience in electronics product design, develop circuit, programming, PCB design included , manufacture, field adjustment, technical documentation, and maintenance.
• EDA tools: Orcad Capture, Schematic, Layout, etc , Mentor Graphics, VHDL, Protel, Autocad, etc.

• Soft switching topologies for inverters are being studied, compared and simulated by Pspice, and prototypes built.
• A three-phase Auxiliary Resonant Commutated Pole ARCP inverter variable speed motor drive, a single phase Resonant Snubber Inverter for UPS and a coupled inductor zero-voltage switching three-phase inverter were built.
• This control scenario detects the load current direction at the output of the inverter to define the state of the inverter and control the auxiliary switches accordingly.
• These inverters are controlled by Analog Device !/ s ADMC401 motor control DSP, which generates space vector PWM signal at 20 KHz.
• With soft-switching technique, these inverters have the advantage of smooth commutation, reduced stress on the switches and EMI and enhanced efficiency.
• The soft switching technique, featuring independent control of each phase of inverter, can be used in field orientation control motor drive as well.

• Developing a 15 kW full bridge switchmode power converter for gas discharge to generate CO2 laser.
• Designed to work in industry application, over- current protection has been realized in the driving circuit of the IGBTs in the converter.
• To obtain 4kV output, nine transformers are carefully grouped in a matrix and sealed in water-cooled oil tank.
• This gas-discharge power supply is designed for high power CO2 laser to obtain continuous and pulsed laser out put.
• Experiments are being carried out and a successful on the prototype converter.

• A prototype full-bridge Series-Resonant Converter of 3KW to7KW was built for a high frequency discharge CO2 laser.
• The electrodes of the laser was covered by a layer of ceramic, thus formed a capacitor with the gaseous load flowing through.
• This capacitive load formed the main part of the resonance tank, which could be approximated as capacitors and resistor at the secondary side of the transformer.
• The converter operates at the resonant frequency with zero current switching.

• A microprocessor monitoring and control system was developed for high power CO2 lasers for industrial usage, using a single-chip microprocessor of 8097BH.
• Functions of multi-channel measuring, power supply control, interface of menu operation etc., were implemented on this system.
• As a system working in industrial environment, it was designed to withstand high EMI.
• The PCB layout was carefully designed by hand, the code was optimized, and data was well protected from interference.
• This microprocessor-based apparatus could be connected to IBM-PC by the series port.

• A microprocessor system was developed to measure and control the pressure of the mixed gas in the resonant chamber in high power CO2 laser for industrial production line.
• Single chip processor 8098 was used in this system to process signal form a silicon pressure sensor and a thermocouple tube, compensating the temperature drift in the silicon pressure sensor by numerical calculating, linearizing the output of the thermocouple tube.
• This product has been delivered in dozens and running for years on production line even today.

• Developed a real time power monitor of High power continuing working CO2 laser.
• A far-inferred detector for measurement of 2kw to 5kw laser beam was developed for this gauge, using thermal pile on ionized Aluminum.
• It was accomplished in the first few months after my college.
• It had been delivered in dozen and run on industrial production line for years till 1996 when better detector was developed.
• Circuit board did not change, not even now.

• Design and develop display circuit of an inferred television temperature measurement system, using a single chip processor 8031.
• The design and thesis received a grade of Excellent.

• Work with other two students to design an alarm system with Communication functions, priority responsibility is to develop a 1W out-put transmitter and receiver of 46.6 MHz to transfer digital signal.
• Second Prize of Excellent College Student s SCI. & TECH.
• Research Achievement of Hubei Province was awarded for this project.