Filter Circuits

Lets now apply our knowledge of AC circuits to some practical applications. We will first look at some simple passive filters (skipping active filters) and then an amplifier model. Again we will rely on complex variables.

 
• Filters and Amplifiers
• Log-Log Plots and Decibels
• Passive RC Filters
  • Low-Pass Filter
  • Approximate Integrater
  • High-Pass Filter
  • Approximate Differentiator
• Complex Frequencies and the s-Plane
  • Poles and Zeros of H
• Sequential RC Filters
• Passive RCL Filters
  • Series RCL Circuit
• Amplifier Model
  • One-, Two- and Three-Pole Amplifier Models
  • Amplifier with Negative Feedback
• Problems