Semiconductor Diodes and Applications P-N junction, Depletion layer, V-I characteristics, Ideal and practical, Diode resistance, Capacitance diode ratings (Average current, Repetitive peak current, Peak-Inverse voltage) P-N junction as rectifiers (Half wave and full wave), Filter (Shunt capacitor filter), Calculation of ripple factor and load regulation clippling circuits, Clamping circuits, Voltage multipliers.