Consider the circuit shown in Figure 1. A Q-point value for IC between a minimum of 4 mA and a maximum of 5 mA is required. Assume that resistor values are constant and that β ranges from 100 to 300. It is desired for RB to have the largest possible value while meeting the other constraints.
(a) Determine the values of RB and RE.
(b) Explain the contribution of resistor RE for thermal stabilisation of this circuit (Thermal stabilisation - Variation to Q-point due to temperature is minimum. β is highly temperature dependent and increases with increasing temperature )
(c) The circuit shown in Figure 1 has to be modified to use as a common emitter amplifier to amplify a signal vin = 1 sin(6283t + 30◦ ) mV. Suggest a suitable circuit showing input and output connections of the signal circuit. Show the value of the capacitors you have selected.
Consider the circuit shown in Figure 1. A Q-point value for IC between a minimum of 4 mA and a maximum of 5 mA is required. Assume that resistor values are constant and that β ranges from 100 to 300....
can anyone help with c? 8. Consider the circuit shown in Figure 7. A Q-point value for Ic between a minimum of 4 mA and a maximum of 5 mA is required. Assume that resistor values are constant and that B ranges from 100 to 300. It is desired for RB to have the largest possible value while meeting the othei constraints. (a) Determine the values of RB and RE. (b) Explain the contribution of resistor Re for thermal stabilisation...
8. Consider the circuit shown in Figure 7. A Q-point value for Ic between a minimum of 4 mA and a maximum of 5 mA is required. Assume that resistor values are constant and that B ranges from 100 to 300. It is desired for RB to have the largest possible value while meeting the other constraints. (a) Determine the values of RB and RE. +15 V Figure 7 8. Consider the circuit shown in Figure 7. A Q-point value...
1) Consider the 2-stage amplifier shown in the figure below. Both transistors have β-100 and operate at lc-1 mA, gm-38.5 ms, r,-2.6 kΩ and ro-100 kΩ. The resistor values are RE,- RE2-1 k(2, Rc,-10 kΩ and RB,-RB3-160 kΩ and RB2-R 34-72 k(2, Rsource-5 kΩ and RLOAD 0.5 k(2. BB2 BB1 in2 Rc1 RinR Rsource Rout RLOAD B2 RE2 E1 a. Calculate Rinl and Rout b. Calculate Rin2 and Rout2. c. Calculate overall Av Vo/vs 1) Consider the 2-stage amplifier shown...
Consider the circuit shown in Figure 1. Assume that the diodes have an exponen Question 21 tial i-v characteristic. Diode D1 has 10 times the junction area of D2, i.e. Isı = 10Is2. Determine the value of voltage V indicated in the figure. The circuit operates at room temperature, i.e. the value of the thermal voltage is Vr = 26 mV 10 mA 3 mA Fig. 1 O+V Consider the circuit shown in Figure 1. Assume that the diodes have...
Electronics-common emmitter amplifier. Pls be try to be helpful Im trying to study here in this book example.. However im kinda lost and i cant follow the correct answers they got.. could someone pls help me.. I just wanna learn this, i hope u can help me learn by showin clear and corect solutions on how to properly got the answer.. Also especially on finding the values on the laod line analysis, im lost. Pls help Any helpful help would...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
#4 The accompanying circuit shows a 4-resistor biased JFET transistor Determine the values of Rp and Rs so that the Q-point is equal to, VDsq 10 V and IDg 5 mA . For the JFET take IDss = 10 mA, VP =-5 V and λ 0 . The circuit parameters are, R1-740 k, R2-22 1.85 ka, Rs-85 ㏀ and RL-3.5 ㏀. Take the power supply VDD 24 V 2- Vo R1 Vi R2 Signal generator 4-In reference to the circuit...
5. (20 points) For the amplifier in the following figure: +Vcc Rout Rc C3 R2 Rin Ri 1 k R3 Vo Vi R1 RE -VEE a) Draw the de equivalent circuit and find the Q-point. Assume B -75 b) Draw the equivalent circuit used for ac analysis. Find the values in Thevenin equivalent representation for the amplifiers between C, and C as shown below. What is the maximum value of v, that satisfies the small- signal assumption? Rout Ri vi...