CHAPTER SIX

Power Supply Circuits

6.1 VOLTAGE REGULATION FUNDAMENTALS

Nearly all electronic systems require one or more sources of stable DC voltage. Yet many systems get their input power from the standard 120-VAC power line. Even battery-powered units may require stable DC voltages at levels other than those provided directly by the battery. Figure 6.1 shows the basic role played by a voltage regulator circuit and where it fits in the power distribution scheme.

image

FIGURE 6.1 A voltage regulator circuit provides constant voltage to a load.

If the system receives its power from the 120-VAC power line, the first step is usually voltage reduction ...

Get Op Amps: Design, Application, and Troubleshooting, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.