Learn how to design and build a capacitor discharge unit (CDU) for model railway point controllers in this detailed electronics tutorial. Explore the fundamentals of solenoid-based point motors used in model railways, with a focus on UK railway terminology and US railroad equivalents. Discover the advantages of using CDUs through 3D model demonstrations and detailed circuit explanations. Master MOSFET-based circuit designs, understand key improvements, and learn implementation methods for both mechanical switches and digital control systems. Gain practical knowledge for a larger automation project involving Raspberry Pi Pico controllers, setting the foundation for advanced model railway electronics and automation techniques.
Overview
Syllabus
Introduction
Model railway point motors solenoids
Capacitor discharge
MOSFET based circuit
Design improvements
Using with mechanical switch
Future use
Taught by
Penguin Tutor
