For the circuit shown in figure below, calculate the two diode currents ip1 =?, ip2 =?. Assume that the diodes are ideal. D1 D2 4 kQ -> 2 kΩ + 10 V 4 ΚΩ 4V
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- How is a solid-state diode tested? Explain.Q2:- Find the level of Vo for each circuit shown in the Figure below. Also, determine the status of each diode; if it is forward or reverses biasing. Assume all diodes are silicone with 0.7v drop. +5 V +15 V -10 V (12 Marks) R DI +5 VoK D +5 VoK DI -5 VoH -5 Vo4 D2 D2 D2 +5 VoH D3 +5 Vo4 D3 -10 VoK D4 V. -5 Vo K (a) (b)In the circuit given in the figure, find the current passing through the diode in mA since R1 = 4.95Kohm, R2 = 2.50Kohm, R3 = 1.69Kohm, R4 = 5.44Kohm, VCC = 13.00V and the diode is silicon?
- A diode circuit is given in the below figure, in which two diodes are connected in series and their saturation currents are Is1 =10-¹6 A and Is2 =10-¹4 A. If the applied source voltage is 1 V, calculate the currents IDI and ID2 and the voltage across each diode VDI and VD2. IDI Ī Vpl + D₂ VD2Consider the circuit shown in Figure 2. The cut-in voltage of each diode is . Let and assume both diodes are conducting. Determine if this is a valid assumption and explain your answer. And calculate the values of IR, ID, Ip2, and V.. Rj =1.7 kQ ww VB =1 V D1 Dz R2D 4 kQ Figure 2Since R1=4.51 Kohm, R2=1.19 Kohm R3=2.74Kohm R4=5.60Kohm VCC=23.00V and diode silicon in the circuit given in the figure, find the current passing through the diode in mA
- Q1 Assume that each diode has a turn-on voltage 0.7V in the circuit shown in Figure Q1. By using the constant voltage drop model: 1kN D1 D2 2kN 4k2 6V 3V 4V Figure Q1 a) Show that it is not possible that D1 is on and D2 is off. (Hint: show a contradiction) b) Show that both D1 and D2 are on.For the circuit below, assume the diodes operate with a constant voltage drop of .7V, find Vx, Vy, VD4 and ID2. 15V 15V Allt V1 V2 R1 1k IDC 1mA Vx R2 2k ww D1N4002 Vy D1N4002 7D1 D1N4002 D2 D3 R3 1k D4 D1N4002Figure Q2(a) shows the characteristic curve of a Zener diode. Analyse the characteristic curve to identify the approximate minimum Zener current Izk(min) and the approximate Zener voltage, Vz at IZK. -10 -9 -8 -7 -6 -5 -2 -1 Vz (V) + 1 3 4 6 7 8 Iz (mA) Figure Q2(a) Analyse the circuit in Figure Q2(b) to identify the minimum input voltage required to keep the diode in Zener region based on the values of the minimum Zener current and the approximated Zener voltage found in Question 2(a). R 1k2 VIN Figure Q2(b)
- consider the figure below that shows an approximated reverse recovery turn-off characteristics for a power diode. Show that the following relation can express the total reverse recovery charge, Qrr = 1/2(trr*ts1) di1/dt =1/2(trr*ts21) di2/dt * ip Isl 1s2! -Ir0:- Consider the circuit in Figure a) What type of circuit is this? b) Find and Sketch the voltage waveform across RL, assume the diodes are practical. c) If 100uf capacitor parallel with the resistor, calculate the ripple is connected factor I O o DC. In the circuit shown below the knee current for the ideal Zener diode is 10 mA Calculate the minimum value of load resistance RL in order to maintain 5 volts across the load resistance RL 2. WW-