c. In the circuit below, the values of Rc = 4.7 kN, Rɛ = 3.3 kN, Vs = 4 V and also Vcc = 10 V and B = 100. Prove that the BJT is operating in the active mode. + 10 V
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- How is a solid-state diode tested? Explain.What is the difference between a diode and rectifier?QUESTION 3 a. Design such a power supply with an input Voltage ranging from 10V to 15 V, and a limiting Resistor of 4.0 kn. Specifications of the Zener diodes are; Ver is 8 V and Rz is 1000. Your task is to obtain regulated output Voltage within the input voltage range. b. With a diagram describe the operation of a clipper that can clip at two independent levels.
- a. Design such a power supply with an input Voltage ranging from 10V to 15 V, and a limiting Resistor of 4.0 kn. Specifications of the Zener diodes are; Ver is 8 V and Rz is 1000. Your task is to obtain regulated output Voltage within the input voltage range. b. With a diagram describe the operation of a clipper that can clip at two independent levels.3 Given the bridge-type full-wave rectifier circuit shown 220V 60Hz 220V:Es Es D1 D2 D3 D4 The load resistor is 220 and the transformer average current is 300mA. Determine: (a) Average value, RMS value, and frequency of load voltage VRL. (b) Average current and PIV of each diode. RLFor the rectifier in the figure below, state the conduction sequence of the diodes for periods t1 to tó. D1 D2 D3 22) tl: D. & D.. 23) t2: D. & D.. 24) t3: D. & D.. 25) t4: D. & D.. D4 D5 D6 26) t5: D. &D. 27) t6: D.AN A & D....... Vm cot t6
- Consider 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 2Problem # 4 In the circuit shown below. Determine the following a. Vs (at the secondary) b. Vout (across RL) c. Vrip (ripple votage) d. VpC e. PIV (Peak Inverse Voltage) 10:1 Dy 1ISV ms Ouiput RL 2.2 k2 D, 50 pF All diodes are IN4001. alleeeA sinusoidal signal with a maximum value of 12V is applied to the input of the bridge type rectifier circuit. Since silicon diodes with a threshold voltage of 0.7V are used in the circuit, what is the maximum voltage of the signal at the output of the rectifier?
- What is the zener diode and what are its advantages? In what region of their characteristic curve are zener diodes operated? At what value of zener current is the zener voltage normally specified? How does the zener impedance affect the voltage across the terminals of the device?For the circuit shown below, compute the maximum current through each resistor when terminal A is a) positive and, b) negative. Assume the diodes are ideal.Q1/Consider the circuit in Figure with a transformer of 10:1 transformation ratio and the diodes are silicon. a) What type of circuit is this? (b) What is the total peak secondary voltage? (c) Find the voltage value across the resistor (d) Sketch the voltage waveform across RL (e) What is the PIV for each diode? D3 D 120 V Pisez) Vpouo D D 10 kn lleee