Stefan Plesan
Piteşti
Summary
I am a PCB Design Engineer looking forward to new challenges which can help me reach new heights in my career. I am an inquisitive, calm and assertive person with a deep passion for the hardware domain. My purpose is to become a world recognized technical expert all by working with great people and for great organizations.
Overview
6
6
years of professional experience
Work History
PCB Layout Engineer
Freelancer
09.2023 - Current
- I am designing Schematics and Layout in Altium Designer for PCB boards that are used to interface video cameras in the airline industry
Senior PCB Layout Engineer
Continental
Iasi, Romania
08.2022 - 09.2023
- PCB Layout for HDI PCB’s with 12-16 layers, using Zuken CAD Software
- Routing various interfaces like: SPI,I2C,UART,CAN,LIN,ETHERNET,USB,PCI EXPRESS,eMMC,DDR4, and so on
- Defining board outline, PCB stack-up and PCB design rules
- Doing various simulations for high speed interfaces
Hardware Engineer
Draexlmaier
Piteşti, Romania
07.2021 - 07.2022
- PCB Layout for Automotive Applications using Altium Designer
- Altium Component Library Administration (Creating symbols,fooprints,reviews for the electronic components that are needed to be used in our projects)
- Hardware testing
- I have made a LIN RGB LED Driver Application PCB for Ambient Lightning, using MLX81108 chip from Melexis. I designed the main control board PCB and four LED Boards. The whole system is designed to light the back seats of the car
Hardware Engineer
Robert Bosch GmbH
Cluj-Napoca, Romania
09.2020 - 04.2021
- Hardware Testing of Automotive PCB’s in the laboratory
- Creating testbenches
- Creating test reports for the PCB’s that I was testing
Power Management Internship
Microchip Technology
Bucharest, Romania
05.2019 - 02.2020
- Design Switched Mode Power Supplies from schematic to layout using Microchip chips
- Using Bode Plots to improve the frequency response of the circuits
- Check if boards are working properly in the laboratory
Hardware Engineer
Summer Internship, Infineon Technologies
Bucharest, Romania
06.2018 - 09.2018
- Documentation in: Pspice, VHDL-AMS, DC to DC converters (linear and switching power supplies)
- Reverse Engineering on a Buck Converter - Average Model that is avaiable on the market
- I traced the schematic of the circuit based on the Pspice libraries and, using my knowledge about Bode plots, I've done various test on the stability of the circuit
- Library review and simulated ecuations and paramaters of a bipolar power transistor used as a Pass Transistor in a Low-dropout regulator
- Create testbenches for a transciever using the SABER simulation program on a Unix platform
Education
Polytechnic University of Bucharest
I.C.Bratianu National College Pitesti
Skills
Altium Designer
Altium 365
CANoe interface
Zuken
Design Force
Design Gateway
Bode Plots Analyser
Pspice
VHDL-AMS
Saber
Unix
Languages
Romanian
Native language
English
Advanced
C1
Soft Skills
Respect
Analysis capacity
Continuous Learner
Teamwork oriented
Friendliness
Confidence
Sharing feedback
University Projects
- Project I : Design the schematic of a linear voltage regulator with parallel adjustment element
- Project II : Design a stepper motor controller using Atmega 16 and a LCD that displays in real time the direction of rotation of the motor(clockwise/anticlockwise) and the number of steps made by the motor. The number of steps are stored in a variable that is incremented/decremented depending on the direction of rotation of the motor. I used full step driving for the clockwise rotation and half step for the anticlockwise rotation of the motor.
- Project III/ Licence (for now I've designed the first functional version of the circuit) : Obstacle avoiding robot using ultrasonic sensor and Wifi command through an Android Application. I used ESP8266 NodeMcu as a controller for the robot, L298N dual H Bridge motor driver, a servo motor used to rotate the ultrasonic sensor in different angles and 2 motors
Projects
- Designed various topoligies to drive speakers using LM386 Low Voltage Audio Power Amplifier
- Driving a CPU fan using NE555 chip. The motor speed is controlled through a pontentiometer that increases/decreases the duty cycle of the signal(PWM). I've extended this project adding Attiny85 microcontroller, a relay and a gas sensor. The microcontroller switches On/Off the fan through a relay according to the values read by the gas sensor. I use this project as a fume extractor for my soldering station
Awards
- IPC Certificate of Competence in Schematic Design
- Mention awarded to the student Pleșan Ștefan University of Pitești The Professional Student Contest Interconnection Techniques in Electronics, TIE 2022 31st Edition
Timeline
PCB Layout Engineer
Freelancer
09.2023 - Current
Senior PCB Layout Engineer
Continental
08.2022 - 09.2023
Hardware Engineer
Draexlmaier
07.2021 - 07.2022
Hardware Engineer
Robert Bosch GmbH
09.2020 - 04.2021
Power Management Internship
Microchip Technology
05.2019 - 02.2020
Hardware Engineer
Summer Internship, Infineon Technologies
06.2018 - 09.2018
Polytechnic University of Bucharest
I.C.Bratianu National College Pitesti