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LinkedIn Learning

Electronics Foundations: Basic Circuits

via LinkedIn Learning


Discover how to build basic circuits using resistors, capacitors, and inductors. Learn how each component works, how they affect voltage and current, and why they're used.

As is the case with many technical projects, it's possible to assemble an electronic circuit without really understanding the different parts involved—you can just connect components together to match an electronic schematic. That said, in order to debug an existing circuit—or design your own—you have to actually understand how the individual electrical components work and how to use them together. In this course, join electrical engineer Barron Stone as he shares the knowledge and tools you need to learn exactly that. Barron demonstrates how to build basic circuits using resistors, capacitors, and inductors. He dives into how each component works and shows the common circuits that use them. He explains the difference between alternating current and direct current and how to use an oscilloscope to view electrical signals. Then, he demonstrates building passive filter circuits to remove unwanted frequency components from those signals.


  • Welcome
  • What you should know
  • Using the exercise files
  • Safety warnings
1. Building Circuits
  • Read electrical schematics
  • Build circuits on breadboards
2. Resistors
  • Types of resistors
  • Resistor characteristics
  • Read resistor color codes
  • Measure resistance
3. Resistive Circuits
  • Resistors in series
  • Voltage dividers
  • Shift voltage levels
  • Measure resistive sensors
  • Potentiometers
  • Resistors in parallel
  • Kirchhoff's circuit laws
  • Wheatstone bridge
  • Challenge: Light-activated switch
  • Solution: Light-activated switch
4. Oscilloscope Measurements
  • What is an oscilloscope?
  • Measure a signal
  • Oscilloscope display settings
  • Oscilloscope trigger settings
5. Capacitors
  • What is a capacitor?
  • Types of capacitors
  • Read capacitor values
  • Capacitor characteristics
  • Capacitors in parallel
  • Capacitors in series
  • RC circuits
  • Challenge: Camera flash
  • Solution: Camera flash
6. Alternating Current
  • Alternating current vs. direct current
  • Sine wave characteristics
  • Measure AC voltage
7. Electrical Signals
  • Frequency domain
  • Bandwidth and square waves
  • Signal sources
8. Reactive Circuits
  • Impedance
  • Filter frequency response
  • Logarithmic scale
  • Decibels
  • RC low-pass filter
  • Decoupling capacitors
  • RC high-pass filter
  • Impedance matching and bridging
  • Challenge: Filter audio
  • Solution: Filter audio
9. Inductors
  • Inductance
  • What is an inductor?
  • Types of inductors
  • L/R response
  • Capacitors vs. inductors
  • Next steps

Taught by

Barron Stone

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