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If the SCR of the figure has a gate trigger voltage of 1.5 V, a gate...
An SCR has a breakover voltage of 450 V, a trigger current of 20 mA and holding current of 20 mA. What do you understand from it? What will happen if gate current is made 40 mA?
The IV characteristic of a SCR is shown in Fig. 4a, and a SCR circuit is shown in Fig. 4b. lo (mA) 12 10 8 La - OA 6 4 Vcc (V) 100 120 140 160 180 20 40 60 80 Fig. 4a Voc 302 1002 VAK Vio Vo = 0.7V 1 OV Fig. 4b (a) Find the holding current IH. (b) Given that the supply voltage Vcc is 80V, the gate trigger current IGT is 12mA, calculate the minimum...
its 100v
14 4. Select the gate resistor so that the SCR fires at the peak of the source voltage. Igr = 20 mA, 1y = 150 mA. V3 is given in RMS. Rg = RL 16 Rg V3 5. What device is being used in the following circuit if this is the waveform for the voltage applied to a load? Device:
15.14 The parameters of the NMOS transmission gate in Fig. 15.23 are V-1.5 V, K 0.1 mA/V", CL 5 pF, and VG 5 V. a. What is the steady-state output voltage if the input voltage is changed in the following sequence: vi o, h. What would the stay-sale output voltlage be if v were swiched to o7 SUB FIGURE 15.23 NMOS transmission gate CL 필)
What would be the expression for the closed-loop voltage gain A-Vo(t)/v(t) in figure 5 assuing it is an ideal op-am model? 1) 2) What would be the input resistiance of figure 5? 3) What would R, and R2 (from the list below) must be to obtain a voltage gain of A 2.5 1.2 kS2, 1.5 kS2 (2), 1.8 k2, 2.2 k2, 10 k2, 12 k2, 15 k2, 18 k2, 22 k2 +5 V Rs= 1.5 k(2 in(0 5 V VoltageSource...
D 6.112 The MOSFET in the circuit of Fig. P6.112 has = 5 mA/V, and V, = 40 V. (a) Find the values of Rs,RD, and RG so that ID=0.4 mA, the largest possible value for R is used while a maximum signal swing at the drain of +0.8 V is possible, and the input resistance at the gate is 10 MS2. Neglect the Early effect. (b) Find the values of gm and r, at the bias point. (c) If...
D-17.121 The MOSFET in the circuit of Fig. P7.121 has V, 0.8 V, k,-5 mA/V", and V,-40 V (a) Find the values of Rş, Rp, and Ro so that Ip 0.4 mA, the largest possible value for Rp is used while a maximum signal swing at the drain of ±0.8 V is possible, and the input resistance at the gate is 10 M2. Neglect the Early effect. (b) Find the values of g and r at the bias point. (c)...
1. An amplifier has a voltage gain Av equal to 20. An input voltage v of 150 mVs applied to the input of the amplifier. What is the output voltage vo? Rs 2. For the amplifier in Problem 3, assume the input current i is 2 mA, and the output current io is 10 mA. What is the current gain A, ? Assuming the amplifier as described above has an output resistance is 0 ohms, what is the load resistance...
6.108 (d)
Section 6.5: Discrete-Circuit Amplifiers 6.107 Calculate overall voltage gain G, of a 3 mA/V, ro= = 10 MS2. The amplifier is the common-source amplifier for which g 100 k2, RD 10 k2, and RG fed from a signal source with a Thevenin resistance of l M2, and the amplifier output is coupled of 20 k2 to a load resistance SIM 6.108 The NMOS transistor in the CS amplifier shown in Fig. P6.108 has V, = 0.7 V and...
4. (25 pts) Given a drain current of 1mA, voltage gain of 0.8, HnCox 0.5 V, λ 0,VDD-1.8V, and RG- 50 k2. Note that there is no current flowing through RG; hence, VG VDD Find: a) (8 pts) gate-to-source voltage b) (7 pts) W/L ratio, and c) (10 pts) source resistance, Rs. Hint: To solve the above three unknowns, you need to form three equations.