Load-Line Analysis
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- A semiconductor diode having ideal forward and reverse characteristics is used in a half-wave recti- fier circuit supplying a resistive load of 1000 Q. If the r.m.s. value of the sinusoidal supply voltage is 250 V, determine (i) the r.m.s. diode current * 170mA O 171 mA O 172mA None of the aboveA- If V, is a sinusoidal voltage with Vm = 40 V, and V= 15 V. Plot the waveform of the output voltage in each of the following clippers circuits assuming ideal diodes. B- Repeat part (A) if the diodes are silicon diodes. R R R (a) (b) (c) (d)B Answer all the questions. (1) The ms value of the input voltage for a bridge network is shown in the following figure. (a) Sketch Vo and determine average output Vo for the configuration of the following figure. (b) Determine the de voltage and r.m.s voltage of output. (c) Determine the required PIV rating of each diode. (d) Does this network work as a clipper? Ideal diodes 170 V 2.2 k2 2.2 ka -170 V 2.2 ka Sketch V and K
- Q2/ Consider the circuit in below figure. What type of circuit is this? b. What is the total peak secondary voltage? c. Find the peak voltage across each half of the secondary. d. Sketch the voltage waveform across RL. e. What is the peak current through each diode? f. What is the PIV for each diode? а. 4:1 D1 120 V rms RL 1.0 kN 00400Ql/ a- Using the characteristics of Figure below, determine I, Vp, VR for the following circuit: + Vp Si + E = 12 V R. 0.75 k2 Vg b- Repeat part (a) using the approximate model for the diode. c- Repeat part (a) using the ideal model for the diode. (mA) 30 25 20- 10- 12 V, (V) 10 0.7 VGiven the following circuit with VDD = 9.5 V, R = 3.2 k2, then the current Iis: Use the CVD model for the diode, with VD = 0.65 V. VDD I a. 0 A O b. 0.002766 A c. 0.002969 A d. 2.968750 A e. 2.765625 A R N V₂
- Question 2: (show your detailed answer for each part of questions below) a) For the series diode configuration in the figure below, determine VD, VR and Ip. + Vn Si 10V 3 kn V b) Calculate the current through a 70 2 resistor in the circuit shown in the below figure. Assume the diodes to be of silicon and the forward resistance of each diode is ta-1 2 Show the answer steps. D Dz 70 n www 20 V DA Dy5 نقاط Q3/B: Assume an ideal diode model for all the diodes in the circuit below. calculate voltages and currents through D1 and D2 R1 :: D2 9kQ.. 1N1199C ..... ... R2 D1 .... .... ... .... 18KQ 1N1199C V2 12 V R3 1kQ D3. 1N1199C ... R4 5kQ ..... .... .... .. .. ... .... .. .... .....Q-3. Draw 1-V characteristics of 5 V silicon zener diode (Vz-5V) and show its parameters V Vz, Izx. Izs, Izm on the curve. Q-4. Determine the range of Road (Rmin, Rmax) that will maintain Vz at 5 volts for the circuit given below. Rs m 1.0kg V1 40 V Pzm=150mw