Level DC (Smoothing Pulsating DC)

Chapter Level DC (Smoothing Pulsating DC)

Complete Electronics Self Teaching Guide with Projects
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Complete Electronics Self Teaching Guide with Projects

  • CHAPTER 11 POWER SUPPLY CIRCUITS474LEVEL DC SMOOTHING PULSATING DC14  A basic power supply circuit can be divided into four sections, as shown in Figure 11.31.RectifierSmoothing sectionTransformerLoadFIGURE 11.31QUESTIONSA. If you use a center-tap transformer in a power supply, how many diodes would you need to produce a full-wave rectified output? B. Will the power supply circuit shown in Figure 11.31 result in full- or half-wave rectification? C. What type of output will the rectifier section of the power supply circuit shown in Figure 11.31 produce? ANSWERSA. TwoB. Half-waveC. Pulsating DC15  The function of the smoothing section of a power supply circuit is to take the pulsating DC (PDC) and convert it to a “pure” DC with as little AC “ripple” as possible. The smoothed DC voltage, shown in the illustration on the right in Figure 11.32, is then applied to the load.Book Authorc11V107/04/2012 3:27 PM c11.indd 4747/4/2012 3:28:12 PM