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Basic Topologies Examples

Fundamental DC-DC converter circuits demonstrating essential power conversion principles.

Examples

Example Description Difficulty
Buck Converter Step-down DC-DC Beginner
Boost Converter Step-up DC-DC Beginner
Buck-Boost Inverting DC-DC Intermediate
Flyback Isolated step-up/down Intermediate
Forward Isolated step-down Intermediate
Full Bridge High-power isolated Advanced

Quick Reference

Non-Isolated Topologies

Topology Conversion Vout/Vin Key Characteristic
Buck Step-down D Continuous input current
Boost Step-up 1/(1-D) Continuous output current
Buck-Boost Inverting -D/(1-D) Inverted polarity
Cuk Inverting -D/(1-D) Continuous I/O current
SEPIC Non-inverting D/(1-D) Same polarity as boost

Isolated Topologies

Topology Conversion Vout/Vin Power Range
Flyback Up/Down n×D/(1-D) 5-150W
Forward Down n×D 50-500W
Half-Bridge Up/Down n×D 100-500W
Full-Bridge Up/Down n×D 500W+

Learning Path

  1. Start with Buck and Boost to understand basic principles
  2. Progress to Buck-Boost for inverting operation
  3. Study Flyback for isolation and coupled inductors
  4. Explore Forward and Full Bridge for higher power