1. Yizhe Liu
BACKGROUND SUMMARY
Solid understanding of electronics and circuit design, microprocessors and general digital design,
conceptual packaging and assembly drawings prior to production launch, design reviews and design
verification, identification and mitigation of technical project risks, technical and integration
dependencies affecting overall project plans and schedules.
WORK EXPERIENCE
Jabil Circuit, St. Petersburg, FL, USA 10.10.2011 – Until now
Position: Entry Level Power Electronic Design Engineer
Career Experience: Accomplished 1 R&D Power Electronics project in 3 pieces. Lead an oven
controller project quotation. Assist a jump pack project quotation. Cadence Training, Agile
Training, Windchill Training, LabVIEW Training. Create an energy storage device DFMEA
and EVT test procedure report. Dialyzer system module simulation. Schematic recapture for
Electrolux project.
1. 4Kw Grid Connected Solar Inverter Development (Solar Inverter between PV array and
Grid): 10/2011-06/2012
1) Analog Circuit Design: 3/1-phase inverter with Boost DC-DC Converter Schematic Design
2) Actively involved in all Algorithm Design: Peak Current Mode Control (Slope Compensation
Protection), Phase Lock Loop Control, Maximum Power Point Tracking (Perturb & Observe
Algorithm) and Anti-islanding (Sandia Frequency Shift, Sandia Voltage Shift)
3) Algorithm Implementation Design: Algorithm Implemented by C Language in CCS V5.2
2. CAN Graphical User Interface served 6Kw Three Phase Inverter As Brush Less DC Motor
Drive Development: 06/2012-08/2012
1) Analog Circuit Design: Three-phase inverter with 6Kw Dynamometer and 3.3Kw BLDC Motor
2) Actively involved in all Algorithm Design: Field Oriented Control with Sinusoidal Modulation
Technology (Sensor Based) start with Trapezoidal Open Loop Control
3) Assist SW Engineer for Algorithm Implementation Design: Algorithm Implemented by C
Language in Code Composer Studio V5.2, CAN GUI Implemented by Labview
3. 4Kw Battery Bidirectional Management System Development: 08/2012-01/2013
1) Analog Circuit Design: Three-phase inverter (rectifier) with Three-Level DC-DC Converter
2) Actively involved in all Algorithm Design: Pre-Charge Mode Control, Constant Current Mode
Control, Constant Voltage Mode Control
3) Algorithm Implementation Design: Algorithm Implemented by C Language in Code Composer
Studio V5.2
4. Quotation finalization for a 10W oven controller design: 06/2013-09/2013
1) Customer technology specification analysis.
2) Firmware topology design & simulation: Power supply circuitry (Isolated with LDO, non-isolated,
isolated switch mode), mis-wire detection/protection circuitry, cook top on indication circuitry, phase
detection circuitry, LED display drive circuitry, wetting current limitation circuitry, RTD self-heating
current limitation circuitry, buzzer drive circuitry, on board tactile keyboard map, relay/redundant
relay drive cirtuitry.
3) Components selection: Select core component refer to customer requirement and created BOM
with different power supply solutions.
4) Technology assumption and design risk evaluation: Make reasonable technology assumption and
4085 71st
Ave N, Pinellas Park, FL, 33781
lyz8606@gmail.com 312-532-4928

2. evaluate design risk for customer such as DFMEA.
5. Quotation finalization for 100W jump pack design: 09/2013-12/2013
1) Customer product proposal analysis.
2) Firmware topology design & simulation: Power supply circuitry (Isolated Fly-back topology),
peak current mode control with unity power factor correction proof of concept simulation.
3) Components selection: Select component refer to firmware simulation and original BOM.
6. Cadence Training & Agile Training: 09/2013-10/2013
1) Cadence Training: Method to create a project. Method to set up page properties, title block, insert
block diagram from Visio program. Method to insert own sub library in design library window.
Method to select Agile component from CIS explorer. Method to insert sheet linking. Method to
check component property. Method to export BOM from cadence. Method to do design rule check.
Method for net list generation. Method to create new symbol.
2) Agile Training: Method to “Save as and modify existing component to suit different project”.
Method to “Create a new item in Agile”. Method to “Create an ECO”. Method to “Create a PCB/PCB
document”. Method to “Add PCB document to PCB BOM/Attach attachments to PCB”. Mehod to
“Create mechanical ECOs/add attachments”. Method to “Create PCBA/Create PCBA docs”. Method
to “Create Jabil ECO”.
7. Windchill Training: 10/2013-11/2013
1) Fundamentals of Windchill Training: Method to access Windchill. Method to Access Learning
Connector. Method to Check-Out, Modify, Check-in document in project. Method to create a
problem report, to complete a clarify task, to create a change request from a problem report. Method
to change Admin II, change Admin III. Method to Logging in, accept a task, complete a task. Method
to create a Windchill part to create a CAD document for Windchill part.
8. DFMEA/ Test procedure report for 10W energy storage module: 12/2013-01/2014
Identifies hardware functional test specifications will be excuted for Last Gasp Module, which is an
energy storage device capable to provide temporarily enough power supply (10W) to keep the DCN
product running for about 30 seconds in order to transmit a “Last Gasp” alert message to the utility
company back end system software in the case of a main power outage.
1) Customer product functional description analysis-10W energy storage module capable to provide
temporarily enough power supply (300J) to system.
2) Test procedure/report creation: Firmware design review & simulation, test set up reverse
engineering analysis, test procedure/test report creation.
3) Technology assumption and design risk evaluation: Evaluate design risk for customer such as
Design Failure Mode and Effective Analysis.
9. Dialyzer control system simulation: 12/2013-01/2014
1) Algorithm Design: Dialyzer flow path during treatment system module simulation. Trapezoidal
speed loop control for BLDC motor simulation. One-Phase On, full step speed control for bipolar
step motor. Import Test Results such as Time, Flow, and Pressure as reference for dialyzer system
loop simulation from Signal Builder in Matlab SIMULINK.
10. LabVIEW Training: 01/2014-09/2014
1) LabVIEW Training: Training refer to Chapter “Getting Started with LabVIEW Virtual
Instruments”, Chapter “Customizing a VI”, Chapter “Full and Professional: Analyzing and Saving a
Signal”, Chapter” Hardware: Acquiring Data and Communicating with Instruments” and Chapter”
Using Other LabVIEW Features” etc.
11. Recapture Electrolux schematic: 01/2014-09/2014
1) Recapture schematic refers to existing schematic with same CRD and value. Compare footprint

3. from previous PCB file to footprint in schematic. Design rules check in Cadence. Netlist comparison
from current netlist (Generated from Cadence) to previous netlist by using wnetdiff program.
2) Through hole component to SMT component conversion. Component ECO creation.
3) DFM report Review & Layout Review with creepage and clearance constraints.
13. Energy Harvesting CPT project: 04/2014-12/2014
Research of existing product in the field with power consumption analysis; evaluation design kit
from Linear Tech and EnOcean; Review papers from front edge design groups in universities such as
Stanford University, UIUC, UC Berkeley, UCSD, etc.
14. Phasor Measurement Unit CPT Project: 03/2014-Until Now
Set up communication between PMU and PMU connection tester and OpenPDC Manager.
Configuration and operation PMU connection tester and OpenPDC Manager for receiving phasor
data with time stamp, etc.
15. Quotation for GE Moris Ignition System design project: 05/2014-06/2014
1) Propose questions by analyzing customer proposal and tech specification.
2) Bill of material creation.
16. Analysis of elements for Wireless Sensors NDA design (Schneider). 07/2014-08/2014
17. Bi-direx inverter Evaluation Project. 12/2014-02/2015
1) Lead-Acid Outback Battery to Electronic Load Low Power Conversion with Bi-direx inverter.
2) Reconfiguration of Bi-direx inverter settings to (240V 60Hz) in Bi-direx Commissioning tool.
3) Discharge Li-iron Evolion Battery (DC) to grid (AC) with Bi-direx inverter.
4) Charge Li-iron Evolion Battery (DC) from grid (AC) with Bi-direx inverter.
5) Inrush current measurement, capacitor pre-charge circuit creation and test.
6) DC Link Voltage ripple measurement.
7) Round trip efficiency measurement.
18. Patent Research and Creation. 09/2014-09/2015
Contribute to four Patents related research and development work (Application and Drawing
Development)
1) Split Boost Inverter;
2) Wien Bridge Oscillator Circuit;
3) Systems and Methods for Shunt Power Factor Correction;
4) Split Phase Synchronous Buck Inverter.
19. Verdigris Project 04/2015-07/2015
30W Flyback power supply simulation and main power and control components selection, schematic
capture in Cadance for fast mechanical dimension case study, design review, simulation and
functional test for High Voltage sense board, root cause analysis of customer MOSFET design failure
and schematic capture in Altium for BOM control, DRC, etc.
20. Amigo Adapter Inrush Current Analysis 05/2015-06/2015
Identified and evaluated the risks of alternative schemes to evaluate inrush current of Amigo Adapter
20. LED Driver design project (Lumastream). 07/2015-10/2015
Schematic & BOM control with knowledge of Altium, Hardware functional L1 test, Layout review,
program Microprocessor.
21. Dialyzer Power supply design project. 09/2015-11/2015
1) Power Supply schematic review, converter control, battery charge algorithm control review
2) Scope, test and Creation Power Supply Verification Test Protocol, such as Power Supply Switch-
Over, Battery Charger, Fuel Guage, USB Rail 5V, Fan Control and Power Button.
3) Hot-Swap Circuitry design and simulation with Simetrix analog simulation tool.

4. 22. Mud Lift Pump Control tower 6 boards design project. 01/2016-10/2016
1) Design schematic review, layout guideline analysis, current density analysis, board layout review
2) Board functional test, post shock-vibe functional test, Hi-current test, post Hi-current functional
test, Over-current test, post Over-current functional test.
23. Water heater controller verification functional test project. 09/2016-10/2016
1) Design schematic review, test procedure creation, functional tests.
24. Multi-level Solar Inverter design project. 08/2016-12/2016
1) Design schematic review, bring up DC-DC (buck/boost) + DC- AC (H-bridge) board with control
algorithm design, software implementation, functional test.
2) System level integration functional test with resistive load and Grid.
EDUCATION
Illinois Institute of Technology (IIT), Chicago, IL, USA Emphasis: Power & Control
Candidate for M.S. in Electrical & Computer Engineering, July 2011 GPA: 4.0
Graduation Thesis:
Development of an embedded controller for two quadrant operation of BLDC Motors in automotive
applications July 2011
Beijing Information Science & Technology University (BISTU), Beijing, China
B.E. in Automation, July 2009
Graduation Thesis:
Research on Temperature Properties for Vibration Accelerometer Based on Cymbal Piezoelectric
Transducer June 2008
SKILLS
Firmware Development (CADENCE, ALTIUM DESIGNER, SIMETRIX, LTSPICE, PISM)
Algorithm Development (MATLAB (Simulink))
Bode Analyzer (Bode 100)
Software Development (Code Composer Studio (C Language), MPLAB)
Graphical User Interface Development (LabVIEW)
Database System (Agile, Windchill)
Experimental Test Device Capability (Techronix Oscillograph, Multimeter, PowerMeter, Soldering
Iron, Electric Drill, etc.)
Documentation (MS Office (Word, Excel, PPT, Visio), Acrobat)
EDUCATION RESEARCH EXPERIENCE
Thesis: Development of an embedded controller for two quadrant operation of BLDC Motors
in Automotive applications 01/2010-07/2011
1) Analog Circuit Design: Schematic & PCB Layout Design of DSP2812 based Digital Control
system; Gate Drive System and Sensor System CAN transceiver system are designed with Altium
Designer and Protel DXP. Fuji Module is selected as Inverter Module.
2) Algorithm Design: Field Oriented Control with Sinusoidal Modulation/Space Vector Modulation
Technology (Sensor Based) for two quadrant operation is developed with Matlab Simulink.
3) Algorithm Implementation Design: Algorithm is implemented by C Language in CCS V3.1.
Switched-mode power supply (SMPS) 08/2009-12/2009
1) Description of Design: A switched-mode power supply with the single-phase AC (120V, 60Hz)
input voltage source and a controlled DC voltage (5V) output
2) Algorithm Design: Power factor correction (PFC) and output voltage PI regulator is designed in
feedback loop. (Input power factor is above 90%. Output voltage ripple is less than 5 %.) EMI filter

5. for eliminating input current harmonics is simulated with PISM
PERTINENT COURSEWORK
Power Electronics, Digital Signal Processing I, Applied Optimization for Engineers, Electric Motor
Drives, Control Systems, Computer Aided Design of Electric Machines, Communication Engineering
Fundamentals, Power Electronic Dynamics and Control
ACTIVITY
IEEE@IIT

6. for eliminating input current harmonics is simulated with PISM
PERTINENT COURSEWORK
Power Electronics, Digital Signal Processing I, Applied Optimization for Engineers, Electric Motor
Drives, Control Systems, Computer Aided Design of Electric Machines, Communication Engineering
Fundamentals, Power Electronic Dynamics and Control
ACTIVITY
IEEE@IIT