Question

Problem 4: (20 Points) Both diodes in the following circuit are made of silicon with the same i-v graph as shown. Calculate the current passing through each diode. 1" @ 100% ita} »V

Answer 1

Given- circuit is Tiknu Given the i-v Characeisfies of Diodes Dri De is AS mentioned below (from the ilp) Io (mal trvo From the 9-V chovacleistics of the given input waveform, the pe diodes have the forward Characteristics with the cat in vollere of 07v and from the rewre bias characeishics (ie, ilp voltage <o) will doesn't have any leatage current ie, the diode cannot operate in the verense bias Characteristics ie, Diode will on it to >0.7V otherwise reverse bios Characte, ashes ore also not present iey = oma if to sorv. From the above classification, the court will be as The trade D2 is off since positive mode of drade

Da will obtain the voltage 1- ol, = 1-0.7= 0.3r. u. Vo = 0.30 – 031: Diode De is in off state - (current flown through diode Da) is omA 0. Applying Kul at bodo loop -0, we get 1-V, -i, R, =o. 1-07- iR, = 0 – 0.3=4. Cikor) T = 0.3mA .. . From the given diede årcuit characterstocs, Diode D is ON, VO, = 0.7V, 8 = 0.3mA Diode D2 is OFF Vp, = 0.3V , p = oA