MM0704, Lesson 4
Figure 4-18. Typical Power Transformer Schematic.
Another type of power transformer is the autotransformer. It is called an autotransformer because the primary and
secondary windings are actually incorporated as one winding. Figure 4-19 is an autotransformer with a movable tap in
the secondary which enables selection of desired voltage values.
Figure 4-19. Autotransformer.