C- Amplifier: Consider figure 3. This circuit uses the JFET to amplify the input signal voltage F...
please help 2 - The companying circuit shows a 3-resistor biased JFET to be used as a small signal dc amplifier Determine the values of Rp and Rs so that the transistor will meet a point equal to, Vns 8 V and Ips- 2.25 mA .For the JFET take Ipss-4 mA, Vp-4 V and 1- 0 and V coupling and bypass capacitors, determine the small signal voltage gain Vo Vi - Avi which includes RL , input resistance Ri-y /...
3. Design a n-channel JFET C-S amplifier circuit for the following specifications Voltage Gain input resistance Ri-100kΩ Load resistanceR2k2 Given supply voltage VDD 20V Αν--10 Rss is fully bypassed The input source resistance Rs 02, Ipss-8mA and Vp4V Assume RD and R1 but must find R2 and RSS using the given specifications. Find the DC Operating Points values (VGs, ID and VDs) Draw the actual circuit and its ac equivalent circuit
The circuit 3-The circuit of problem # 2 is subjected to a small ac input by the signal generator. By neglecting the voltage drop across the coupling and bypass capacitors, determine the small signal voltage gain Vo/ Vì = Avi , input resistance Ri-vi / ii and the output resistance Ro external to R Avi= Ri= , Ro The accompanying circuit shows a 4-resistor biased JFET transistor Determine the values of Rp and Rs so that the Q-point is equal...
4. Consider the following JFET based amplifier: R1 600 Ohm Vbatt 10k Ohm Input R2 vin(t) (a). Derive an expression for the total voltage, Vout (relative to ground) if the transconductance gm of the JFET is 0.008 Mhos, treating Vin(t) as an unknown. (10 points) (b). Identify the AC gain of the amplifier - this is the coefficient of Vin(t) in your answer from part (a). Express the gain in dB units (e.g. 20 logiolVout/Vinl) (5 Points) (c). Is this...
Exercise 12.13 Derive expressions for the voltage gain, input resistance, and output resistance of the common-gate amplifier shown in Figure 12.29, assuming that ra is an open circuit Answer The small-signal equivalent circuit is shown in Figure 12.30. A Rin 1/(gm 1/Rs); Ro = Rp. gmR/; +VDD С2 + RL Vo CL R + Vin v(t) -Vss W Ri Rp R 8mVgs Vo Rs Vin + v(t) Exercise 12.13 Derive expressions for the voltage gain, input resistance, and output resistance...
4. The MOSFET amplifier below must amplity s sinusoidal input signal, wh minimal distortion. a) Determine the smallest value for Vas-Vi for minimal distortion under the small-signal condition for the given v Tos Tas b) Determine the minimum voltage VaD across the drain resistor for a voltage gain of 10. c) Determine the smallest value for Vos that would be required in order to amplify vg with minimal distortion. What should be the minimum required voltage for the power supply...
Q1. For the cascade amplifier circuit shown in Fig (1): a) What are the functions of the capacitors C, C2 and C3? And what are the functions of the capacitors Cs and CE? b) What are the functions of the resistors RD and Rc? c) Draw the DC biasing circuits for each stage. d) Find loa, VGsa, VDs and gm for the JFET stage (you may use either mathematical or graphical methods) e) Calculate l, Ic, le and Ve for...
A MOSFET is wired as a common-source amplifier as shown below. The input voltage vIN is the total of the source for biasing the circuit at its operating point (vBIAS), and a small signal ac source providing the signal that we want to amplify (vin). The total output voltage is vO. a) Assume VDD = 5?, VIN = 2?, and ? = 4?Ω in the circuit and the MOSFET parameters are K = 0.5??/?2, VTH 1?, and ? = 0.05V-1....
(a) The figure below shows the small-signal equivalent circuit of a voltage amplifier. The open-circuit output of the supply v10 V (i) Determine the resistances if the regulation should be less than 5 % when 1 W is being delivered to a resistive load connected across vo in the mid frequency range. If the low frequency 3dB point is at 1 kHz and the high frequency 3 dB point is 100 kHz what are the capacitance values. Assume the circuit...
Small-Signal Mid- Band Voltage Gain (Range) Transistors Amplifier Confiaurations +2) to (+5 P-JFET Common Gate By referring to a specific transistor datasheet, design a single stage amplifier circuit with the following specifications. Include in your design, (i) the amplifier circuit, (ii) DC & AC equivalent circuits, (ii) DC & AC analysis and (iv) frequency response. State your assumptions, if any. Small-Signal Mid- Band Voltage Gain (Range) Transistors Amplifier Confiaurations +2) to (+5 P-JFET Common Gate By referring to a specific...