Power Devices
$49.00
Series: Electrical Skills Learning Plans: Electrical Theory for Troubleshooters, Electrician Level 1
Duration: 1h
This lesson describes the operating principles and function of transistors, SCR’S, and triacs and shows how current flows through each device. Schematic symbols for transistors, SCR’S, and triacs are also shown and explained.
Objectives:
- Describe the switching and amplification functions as well as the three regions of a transistor
- Identify the schematic symbols for PNP and NPN transistors and explain how current flows through each type
- Explain how transistors perform switching and amplification functions
- Use an ohmmeter to test a transistor
- Identify the schematic symbols for a SCR and a triac and explain how they operate