Figure 4-46.Series-aiding sources.
The schematic shown in figure 4-47 is an illustration of a half-wave voltage tripler. When you
compare figures 4-46 and 4-47, you should see that the circuitry is identical except for the additional
parts, components, and circuitry shown by the dotted lines. (CR3, C3, and R2 make up the additional
circuitry.) By themselves, CR3, C3, and R2 make up a half-wave rectifier. Of course, if you remove the
added circuitry, you will once again have a half-wave voltage doubler.
Figure 4-47.Half-wave voltage tripler.
View A of figure 4-48 shows the schematic for the voltage tripler. Notice that CR3 is forward biased
and functions like a closed switch. This allows C3 to charge to a peak voltage of 200 volts at the same
time C1 is also charging to 200 volts.