DC CIRCUIT TERMINOLOGY
Basic DC Theory
Figure 10 One-Line Diagram
A block diagram is used to show the relationship between component groups, or stages in a
circuit. In block form, it shows the path through a circuit from input to output (Figure 11). The
blocks are drawn in the form of squares or rectangles connected by single lines with arrowheads
at the terminal end, showing the direction of the signal path from input to output. Normally, the
necessary information to describe the stages of components is contained in the blocks.