DC resistance of diode is -4 measured at a) Knee current d) Reverse breakdown point b) Cut-in voltage c) Q-point
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- What is CEMF?An office building uses a bank of 63 lead-acid cells connected in series with a capacity of 80 amp-hours each to provide battery backup for their computers. The lead-acid cells are to be replaced with nickel-metal hydride cells with a capacity of 40 amp-hours each. How many nickel-metal hydride cells will be required to replace the lead-acid cells and how should they be connected?Sketch vo for each network of Fig. 2.161 for the input shown. Would it be a good approximation to consider the diode to be ideal for both configurations? Why?
- Find current I if voltage V = 5V, VB= 2V, R1& R2 = 2K. Use ideal diode model assumption.Sketch V0 for the network as practical diodeA shunt regulator employs a zener diode for which VZ = 10.1 V at IZ = 10 mA while VZ = 10.2 Vat IZ = 20 mA. The available supply voltage (VS) is 15.0 V, R = 300 ohm, and the load resistance(RL) =1.0 kohma) Find VZ0 and rz.b) Calculate the output voltage (VO).c) Determine the line regulation (ΔVO/ΔVS).d) Using the line regulation obtained in (c), determine the values of the output voltage (VO) if thesupply voltage (VS) is increased from 15 V to 15.1 V.
- 4670V = VsR = 200kΩ C = 0.1μF Consider the circuit and parameters illustrated above. If a derating factor of 12% is sugested then calculate, 12) the maximum reverse voltage rating of the diodes; 13) the string efficiency of this arrangement; 14) the maximum difference in leakage current of the diodes; 15) the maximum difference in stored charge of the diodes.which is the input voltage (Vin) in the circuit Zener diode will provide regulation in the range, calculate. (rz= 5 ohm, vz=56 v, Izmin=250 uA, Izmax= 17,8 mA)assume that the diodde in the circuit diagram below is reversed, 1.sketch the output waveform (Vo) 2.Determine the DC level of Vo
- 1. Determine the dc level of the output if ideal diode is used (in V). 2. Determine the dc level of the output for network if silicon diode is used (in V).What is output value of the circuit below when input in negative half cycle, suppose Vi= 20 Vp.p, VR1=5, VR2= 3 and ideal diodeSENOID INPUTS - HALF WAVE RECTIFICATION 1. Given "Pmax = 14mW" for each diode in the figure, determine the maximum current rating for each diode. (use approximate equivalent model) 2. Find "Imax" when Vimax = 160V 3. Determine the current of each "Vimax" diode using the results of literal (2)