DIVIN SUJATHA KRISHNAN

*** ***** **** **, ********** OH 43040 Ph:216-***-****

linkedin.com/in/divin-sujatha-krishnan-b41375b0 ac5gaa@r.postjobfree.com

SUMMARY

Worked as a Graduate Intern at Cisco Systems for 3 months on High speed interface testing.

1-year experience as Project Engineer at NMTL, Punnapara, Kerala, India.

2-years experience as Research Assistant, where I have designed the hardware model of three-phase PWM boost rectifier in Power Electronics Laboratory at Cleveland State University.

1-year experience as Teaching Assistant for Power Engineering courses at Cleveland State University.

2-years experience as Learning Assistant at Math Emporium, Cleveland State University.

I have good knowledge in Fundamental Concept of Electrical Engineering and demonstrated expertise in laboratory test equipment like Oscilloscope, DMM, Power supplies, Function Generator, Spectrum Analyzer, Power Quality Analyzer and software like MATLAB/Simulink and dSpace.

I have good working knowledge on A/D & D/A Converters, active and passive electronic components, with hands on experience on Analog and Digital Circuitry Design, Troubleshoot and Debugging.

EDUCATION

Master of Science in Electrical Engineering December 2017

Cleveland State University, Cleveland, Ohio GPA: 3.61/4

Relevant courses: Power Electronics II, Power System Analysis and Design, Power System Operation and Control, Power Electronics and Machines Lab, Master’s Thesis.

MASTER’S THESIS AND PUBLICATION

Experimental verification of a generalized control method for constant switching frequency three phase PWM boost rectifier under extremely unbalanced operating conditions.

http://rave.ohiolink.edu/etdc/view?acc_num=csu1513867858660832

TECHNICAL EXPERTISE

Engineering Tools: Oscilloscope, VNA, Spectrum Analyzer, BERT, SCADA, CAD soft Eagle, PCB Design, MATLAB/Simulink, Analog and Digital Signal Processing, LTSpice, PSpice, Soldering, Gate Driver Circuit Design, Protection circuitry, Noise reduction Techniques, IGBTs, MOSFET, dSpace/Control Desk Next Generation ds1104, PLC Programming, PowerWorld Simulator, Arduino 1.6.7, Python, Autodesk AutoCAD Electrical.

Basics: C, C++, Microsoft Office (Excel, Word, PowerPoint, Visiop and Excel).

PROFESSIONAL EXPERIENCE

Graduate Research Assistant at Cleveland State University, Cleveland, OH from December 2015 to December 2017.

oBuild the hardware design of three-phase PWM boost rectifier and achieved constant switching frequency under extremely unbalanced operating conditions using TI F28377s Microcontroller.

oRead PCB Schematics and designed ADC and DAC based circuitry.

oHands-on experience in connecting and soldering electrical and electronic equipment.

oPerformed FFT analysis of Current signal.

oExpertise in laboratory test equipment like Oscilloscope, Digital Multimeter, Power Quality Analyzer, Voltage Isolator, Current clamp and LabVolt Test Bench Equipment.

oDesigned analog circuit for driving the Gate signal of Power MOSFET.

oSuccessfully completed several projects using Arduino Due and Raspberry Pi 3.

Worked as Graduate Intern (Electrical Engineering) on high speed signal interface standard at Cisco Systems, Inc. San Jose CA from May 2017 to August 2017.

oWorked on High Speed Interface SFP for Optical signal verification as per IEEE 802.3

oMeasuring Eye diagram using Agilent Infiniium 86100D oscilloscope

oMeasuring S-Parameter using VNA.

oUsing Spectrum Analyzer to measure peak wavelength.

oMeasuring Receiver characteristic using BERT.

oHardware bring up using Cisco IOS and Diagnostic images.

oMaking final report and submitting to Design team after performance testing of port.

Project Engineer at New Modern Technomech Pvt. Ltd from June 2013 to August 2014.

oAcquired experience in the project of laying 220KV DC Line from Veeyapuram to Punnapara.

oSupervision of Pile Foundation, Pile Cap, Tower erection & Conductor String works.

Teaching Assistant for Power Systems Operations, Cleveland State University, Cleveland, OH from August 2016 to December 2016.

Teaching Assistant for Power Electronics and Machines Lab II, Cleveland State University, Cleveland, OH from December 2015 to May 2016.

oTested laboratory equipment and performed Laboratory experiments.

oGuided students to perform the Lab experiments with safety and precautions.

oPerformed DSP based motor control and parameter determination of induction machine.

Learning Assistant at Math Emporium, Cleveland State University, Cleveland, OH from August 2015 to December 2017.

oTaught students to solve math problems on basic Calculus, Probability, Statistics, Integration and Differentiation.

CERTIFIED COURSES

PLC Programming from scratch (PLC I)

Practical PLC Programming (PLC II)

Process Visualization with HMI / SCADA (PLC III)

Advanced programming paradigms (PLC IV)

3D Modelling Piped Systems in AutoCAD

Design PCB using Eagle CAD Soft step by step.

GRADUATE PROJECTS

Three-phase PWM inverter using MATLAB/Simulink.

System Planning for Generator Retirement.

Circuit Breaker selection (Using PowerWorld simulator).

Determination of induction motor parameters for sinusoidal and six-step inverter input.

Verification of induction motor parameter by using 5th and 7th harmonic model.

DSP based induction machine parameter determination.

DSP based Torque-Speed characteristics and Speed control of three-phase induction motor.

DSP based real-time implementation of a switch mode DC converter using dSpace.

REFERENCES

Dr. Ana.V. Stankovic, Professor, Department of Electrical Engineering, Cleveland State University, Email: ac5gaa@r.postjobfree.com

Abhishek Upadhyay, Hardware Engineer, Cisco Systems, Inc. Systems, Email: ac5gaa@r.postjobfree.com

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