Electrical Engineering and Computer Science

Electronics I

ECE322 is the introduction to the analysis and design of analog electronic circuits. Diodes, BJTs, and MOSFETs are covered. The lab uses concepts learned in lecture to design and build a power supply.

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Hardware Used

• ECE 322 Kit Parts List

Software Used

• LTSpice IV

Useful Tutorials

• LTSpice Starter Guide
• How to Solder (Video)
• Basics of Protoboarding (Video)
• How to Solder
• A More In-Depth Look at Soldering

Important Documents

• Lab Syllabus
• Example Pre-Lab
• Project Specification Example
• Project Specification Rubric
• Project Specification Documentation (doc)
• Dead Week Presentation Information
• Dead Week Presentation Rubric
• 10K Thermistor - Datasheet for the 10k Thermistor
• LM741 OPAMP - Datasheet for the LM741 OPAMP
• Front Panel - (Solidworks) Use this file as a starting point if you want to make a custom front panel for your power supply.
• Back Panel - (Solidworks) Use this file as a starting point if you want to make a custom rear panel for your power supply.

On-Campus Suppliers

• IEEE Store (Hours)
• TekBots Store (Hours)

Lab Manual

Complete ECE 322 Manual

Section 1: Lab Equipment

• Week 1:
• Pass out lab kits
• Explain and demonstrate a finished power supply
• Explain oscilloscope coupling basics
• LTSpice training/review

Section 2: Rectifier and Amplifier

• Week 2:
• Diode I-V characteristics and changes w/temperature
• Half/full wave rectifiers
• Filtering, determining voltage ripple
• Design and build rectifier/filter circuit

• Week 3: Finish Up
• Finish building AC rectifier
• Finish Mechanical Assembly

Section 3: Voltage Regulators

• Week 4:
• Transistor characteristics
• Vary fan speed with BJT amplifier and pots
• Two transistor vreg (2N4401 then with TIP29)

• Week 5: Design and Voltage Regulators
• Darlington pair to boost DC gain (hfe)
• Build Positive VReg

• Week 6: Design and Build Voltage Regulators
• Design and buile negative VReg
• Add over current protection
• Challenge to add over current warning light

• Week 7: Design and Build Voltage Regulators
• Design and build fan control circuit

Section 4: Temperature Controlled Fan

Week 8: Design and build fan control circuit

Section 5: MOSFET Design

Week 9: Design and build capacitor discharging circuit

Section 6: Testing and Challenges

• Week 10:
• Test power supply for full functionality
• Assorted challenges

Appendix

Appendix A: Lab Equipment Overview
Appendix B: Project Design Specification Document
Appendix C: Presentation Pointers
Appendix D: Tektronix TDS 210 Oscilloscope
Appendix E: Parts List and Suppliers