Lesson 15/1788%
MODULE 15

Optocouplers vs Modern Isolation Technologies

A quantitative face-off: capacitive and magnetic digital isolators, isolation transformers, and fiber optics versus the optocoupler — benchmarked on speed, power, isolation quality, EMI, reliability, aging, and cost, ending with a technology selection decision tree.

⏳ Coming Soon — content in development

Learning Objectives

After completing this module, you will be able to:

Explain how capacitive and magnetic digital isolators work
Benchmark all isolation technologies quantitatively
Weigh EMI emission and susceptibility differences
Apply a structured technology selection methodology
Defend technology choices in design reviews

Planned Topics

Digital isolators
Capacitive isolation
Magnetic isolation
Isolation transformers
Fiber-optic isolation
Technology selection guidelines

Reserved Sections

This module will follow the same interactive format as Module 1:

Interactive animations

Animated diagrams and simulations for this module are in development.

Engineering calculators

Module-specific design calculators will appear here.

Design examples

Worked examples with full component values are planned for this section.

Knowledge check

Multiple-choice, true/false, and scenario exercises will be added.

Downloadable resources

PDF notes, reference tables, and checklists will be provided.

While you wait: Module 1 — Introduction to Optocouplers — is fully available, including animations, the CTR and isolation calculators, and a complete knowledge check. Start there →