3) Draw the AC equivalent circuit for the circuit below and answer/find the followings: a) What is the amplifier configuration and roughly what is its core voltage gain, Av? b) Find the input resistance of the amplifier, Rin (parametrically; non- numerical) c) Find the output resistance of the amplifier, Rout (parametrically; non- numerical), ignore ro Vec A Re Ri Rot Ra -VEE RL

The transistor parameters for the circuit in Figure are B, =B2 = 100, VBE1on) = VBE2ton) = 0.7 V, and %3D VA1 =VA2 =0.Find the small signal voltage gain Av = vo/vs. (Note that V-=0.026 V) Vcc=9 V Rib Q1 Vs 1 ko -Ro 20 V 100 Q -ww

Explain amplifier characteristics

explain RC coupled amplifier in detail .

1. The DC-DC converter has several circuit configurations. a) (Draw a simple connection of IGBT switch, diode and inductor that can discriminate between Buck, Boost and Buck-Boost converter circuits respectively.) b) ('A Boost converter produces an output voltage, Vo that is more than or equal to the input voltage, Vi. Based on this statement develop the equation for the relationship between Vo Viand D. where D represents the duty ratio. You can use any suitable diagram to illustrate your answer.)

which of the following configurations has low impedance and high output impedance?   a. common-base. c. common-collector. b. common-emitter. d. all of these.

4) Consider the clamping circuit below, assume Vref=3 V and Vin=5sin(wt) ..Draw the output voltage waveform. Clearly mark the max and min of the voltage.. Vref

Using LTSpice, simulate the circuit below, use 2N3904 for the transistor. Part ! DC simulation: Measure VCE and Ic. Use .op for the simulation cmd. Remove all capacitors and input signals first. Part 2 AC simulation: Connect all capacitors now and apply an AC signal at the input with an amplitufe of 1mV and a frequency of 1kHz. Determine the Voltage gain of the circuit by dividing Vo with Vin. Show the output for both the DC and AC analysis. Take a screenshot of the circuit and the output voltages and waveforms. Paste in a word file, write your answers, then save as pdf. 50 kΩ Σ 20 0,5 ΚΩ wwwh 9 Vcc=20 V Ca=1 µF = Cc₂ Cg=50 μF 5.6 kn B=100 Ca IST • 3.3 ΚΩ 5 ΚΩΣ CE

I need help pls. I will give thumbs up

Find the following: DC gain, inductor current ripple and output voltage ripple:   For DC-DC Buck converter: 1-Draw all circuits in all position 2-Sketch the transistor current waveform 3-Derive analytical expressions for the dc components of the capacitor voltages and inductor currents. 4-Derive analytical expressions for the peak ripple magnitudes of the input filter inductor current and capacitor voltage.