Exp. No. 1 Part:1 HALF-WAVE RECTIFICATION

Over one full cycle, defined by the period T of Fig. below, the average value (the algebraic sum of the areas above and below the axis) is zero. The circuit of Fig below , called a half-wave rectifier, will generate a waveform vo that will have an average value of particular, use in the ac-to-dc conversion processIts power and current ratings are typically much higher than those of diodes employed in other applications, such as computers and communication systems.
During the interval t =T/2 in Fig the polarity of the applied voltage vi is such as to establish “pressure” in the direction indicated and turn on the diode with the polarity appearing above the diode. Substituting the short-circuit equivalence for the ideal diode will result in the equivalent circuit of Fig , where it is fairly obvious that the output signal is an exact replica of the applied signal. The two terminals defining the output voltage are connected directly to the applied signal via the short-circuit equivalence of the diode.