Stefan Plesan

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.

Respect

Analysis capacity

Continuous Learner

Teamwork oriented

Friendliness

Confidence

Sharing feedback

• 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

- 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

• 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