Technical Reference

• Mathematics
  • Uncertainty Demystified - pdf
  • Fundamental Theorem of Calculus - pdf | doc
  • A Matrix Algebra Approach to Least Squares Fitting - pdf | doc
  • The Complex Fourier Series, Fourier Transform, and the DFT - pdf | doc
  • Digital Filter Study - pdf
  • Useful Trigonometric Identities - pdf | doc
  • PWM Waveform Frequency Content - pdf | doc | xls
• Controls
  • Perfect Compensation -
  • Useful Block Diagram Manipulations- pdf | Visio
  • The Sinusoidal Transfer Function - pdf | doc
  • The Nyquist Stability Criterion -
  • The Robotic Arm: A Real-World Example of an Unstable Plant -
  • Predicting Closed-loop Stability of a Digitally Controlled System - pdf | doc
• Mechanical Engineering
  • Planetary Gearbox Analysis - Main (pdf) | Max. gear ratio (pdf) | All (zip)
  • Four-Bar Mechanism -
  • Bolted Joint Preload - pdf
  • Dewar Analysis (Vapor and Liquid Flow) - pdf | doc | vsd (diagrams) | xls (calculations) | zip (calcs w/ gas props)
• Electrical Engineering
  • What is Voltage? - pdf | Lyx
  • Filtering a Differential Signal - pdf | Visio
  • Capacitor Divider / Charge Pump Analysis - pdf | doc | web-calculator
  • MOSFET Feed-Through -
  • Brushless DC Motor Model -
  • Basic Motor Model Analysis - pdf | lyx | xls
  • Passive Dyno using a BLDC Motor - pdf | doc
  • 3-Phase Brushless Motor Analysis - zip
  • Simple Transformer Analysis - pdf | doc
  • Transformer Magnetizing Inductance - pdf | dwg_pdf | dwg_visio
• General Engineering and Physics
  • Energy Conversions - pdf | doc
  • Basic Fluid Mechanics - pdf | lyx