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A1. An amplifier has cutoff frequencies of 120.0 Hz and 1.200 kHz. Calculate the bandwidth and center frequency of the amplifier. A2. The upper cutoff frequency of an amplifier is 8.000 MHz and its center frequency is 1 MHz. Calculate its lower cutoff frequency and its bandwidth. A3. An NPN CE amplifier has a voltage gain of 32 and Cbc = 12 pF. What is the Miller capacitance seen by the base and seen by the collector? B. Assume the following for Fig. 1-5 in the Supplementary Transistor Low Frequency Effects document: Vcc = 18.0 V Beta = 150 Rs = 0 ohms Cb = 0.1 uF R1 = 91 kohms R2 = 16 kohms Rc = 7.2 kohms Re = 1.8 kohms Ce = 33 uF Cc = 0.1 uF Rload = 2.2 kohms B1. Calculate the mid-band gain - numeric and dB. B2. Calculate the three low frequency corners
Two bars of silicon, one n-type and one p-type, are uniformly doped so that ND(bar1) = NA(bar2) = 3.7x1016 cm-3. a) Without calculations: which bar will exhibit the larger resistivity and why
A 50 ohm source is connected to a 50 ohm receiver using 30 ft of RG58U coaxial cable. If the source output is 100 MHz and -30dBm, determine the voltage at the receiver in mV and dBuV [6.05 mV , 75.6 dBuV
A 150 MVA, 24 kV, 125% three-phase synchronous generator supplies a large network. The network voltage is 27 kV. The generator operates with an induced voltage, which is twice the rated line-to-neutral voltage.
For a modulating signal) x(t)= (t/T) a) Write an expression for the PM modulated signal. b) Write an expression for the FM modulated signal. c) What is the maximum phase deviation of the PM signal
A composite analog signal is given in the following expression: x(t)=1.2 sin(2pi60ft)+0.0001cos(2pi1ft) -If this signal was sampled at 1000 Hz, derive the expression for the sampled sequence x[n] with n being the sampling index.
A unity feedback control systems for a robot submarine has a plant with a third-order transfer function G(s) = K / (s(s + 10)(s +50)) We want the overshoot to be approximately 7.5% for a step input
design a variable power supply of 0-25 V and 0-5 A with load voltage 5 V and load current 1 A. the primary voltage is 120 Vrms and 60 Hz. determine all values each component, use diode of Si.
A parallel A/D is clocked at 1 MHz. It has a range of 0 to 10V and is an 8-bit device. a. Determine the time required to convert an input voltage of 10 volts. b. Determine the minimum voltage resolution of t..
A system samples a sinusoid of frequency 480 Hz at a rate of 100 Hz and writes the sampled signal to its output without further modification. Determine the frequency that the sampling system will generate in its output.
Brown and Vranesic. Problem 6.28 - Repeat Problem 6.26 using T flip-flops. Design a three-bit counterlike circuit controlled by the input w. If w = 1. then the counter adds 2 to its contents, wrapping around if the count reaches 8 or 9.
A)An amplifier has an input voltage of 0.5V and an output voltage of 12V.Calculate the increase in unit decibels. B)An amplifer has an input power 2W and an output power of 80W. Calculate the increase units of decibels.
Let X be the outcome for rolling a die and let Y be the outcome for rolling a second die. X & Y are the number of dots that appear for each die. find the joint probability for the event X less or equal to 3 and Y greater than 3
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