This document discusses several key components used in electronic power and control systems. It covers rectifier diodes which convert AC to DC, zener diodes which regulate voltage, transistors which can be used to amplify or switch electronic signals, and SCRs (silicon controlled rectifiers) which allow for switching of higher power DC loads. Diagrams are included showing the polarity of diodes and transistors.

1. Electronic Power and Control 1
Learning Outcome 1

2. Rectifier diodes

3. Rectifier diodes

4. Zener diodes

5. Zener diodes

6. Transistor

7. SCR - silicon controlled rectifier
Anode Cathode
Gate