Experiments

ECEN 2270 Spring 2014

Five multi-part lab experiments and a final project will be performed during the course. Each of these will be performed by a group of two students. Please submit finished work to the D2L dropbox before the deadline. Each experiment will require a live demo in lab and have an accompanying written report and in class quiz.

Please follow these guidelines while writing your lab reports.

Lab 1: Introduction to design, simulations, prototyping and testing of electronic circuits

Objectives: develop laboratory and circuit design skills and techniques, perform simulations, prototyping and testing

  • Setting up and operating laboratory equipment
  • Reverse engineering electronic circuits, being able to recognize and use circuit components, read data sheets, and draw circuit diagrams
  • Designing pulse generation circuits and amplifiers
  • Performing design verification by circuit simulations and experiments
  • Demonstrating and explaining circuit designs and hardware
  • Preparation of written laboratory reports

Tasks

Lectures

Quiz

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Lab 2: Robot DC motor characteristics and speed measurement

Objectives: model characteristics of a DC motor, design a speed sensor cirucit

  • DC motor characteristics
  • Modeling based on experiments
  • Design of pulse-generation circuits, first-order high-pass and and low-pass filters
  • Performing design verification by circuit simulations and experiments
  • Preparation of written laboratory reports

Tasks

Lectures

Quiz

  • Practice Quiz2
  • Practice Quiz3 - Review lecture #4. Make sure you know how to solve RC circuits.

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Lab 3: Robot DC motor driver and speed control circuit design

Objectives: design, simulate, construct and test DC motor driver and speed controller

  • Circuit design with bipolar junction transistors, power, current and thermal considerations
  • Introduction to feedback concepts, open-loop and closed-loop transfer functions, integral compensator
  • Performing design verification by circuit simulations and experiments
  • Preparation of written laboratory reports

Tasks

Lectures

Quiz Solutions

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Lab 4: Robot speed and position control using a microcontroller

Objectives: design, program, construct and test DC motor speed and position controls using a microcontroller

  • Introduction to embedded microcontroller programming, analog and digital interfaces
  • Position control, incremental encoders and interrupts
  • Project floorplanning, and circuit debugging
  • Preparation of written laboratory reports

Tasks

Lectures

Quiz

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Lab 5: Remote control design

Objectives: design, construct and test a fully functional robot with wireless on/off and speed control

  • Circuit and system construction, testing, debugging
  • Wireless control, frequency division, bandpass filter design, pulse-width modulation, DC level shifting and amplification
  • Approaching complex systems by dividing the system into simpler circuits that can be designed and tested separately

Tasks

Lectures

Quiz

  • No practice quiz: study details of the wireless control circuit (level-shift, PWM, transmitter and receiver, bandpass filter, peak detector)

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Lab 6: Final Project

Objectives: design, construct and test a fully functional robot with wireless on/off and speed control

  • Independent design of a system component: oral and written proposal, circuit design, embedded programming, construction, testing and system integration
  • Project demonstration and project documentation

Lectures

Tasks

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