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A BJT differential amplifier is biased to have 500uA dc current in each device, β = 100, RC1 = RC2 = 1Kohm, and RE = 3Kohm. Assume ro = ∞. When operating in balanced in, balanced out mode
Why does the Thevenin's technique work only for circuits with linear elements (or at most a single non-linear resistor). Figure out where the mathematics of the theorem breaks down for non-linear el
Suppose that we want to determine how many of the bits in a six-bit unsigned number are equal to 1 . Design the simplest circuit that can accomplish this task.
Using particles, generate a current of 100 amps. If the particles are 0.0015m in length, and each particle has a charge of 3.06x10^5 coulombs, what speed must each particle be traveling to generate
Two concentric cirlces have radii of 5cm and 48mm. A particle traveling at 0.25 m/s smashes into the inner surface of the outer sphere. If the potential of the spherical capacitor is 50 V, what is t
Calculate: Critical frequency for the input low pass network, and the output low pass network, estimate the values for Cbe, Cjc, Cbc, and Cje. Concider the resistance of the signal sourceRs to be equa
An electronic circuit board with lambda(t) = 0.00021 h^-1 is replaced on failure. What is the probability that the third failure will occur by 10000h ( hint: if there were 4 0r more failures by 1000
Given two NMOS FETs having (kn'/2)(W/L) = (3 KW)^-1 and Vt = 3V. Using a single 10V dc power supply, design a differential pair amplifier having 1mA bias current in each transistor. What is its maxi
a) Developed an analytical expression for |Vout/Vin|, where Vout is the voltage across the combination impedance R2||C2, and Vin is the voltage. b) For w0^2 = 1/(R1R2C1C2) (the center frequency), de
Consider a portable 20cm2 fuel cell operating at 0.75V, 0.6 A/cm2. Suppose the stoichiometry of the anode is 2.0 and that of the cathode is 2.3. The fuel cell is expected to run for 3 days before be
Suppose instead that the current is only about 100,000 A. Then theoretically we should expect that only 100,000/(2*F)=0.52 moles of hydrogen is going through the system. However, due to leakage, cr
A single - phase bridge rectifier is supplied from a 120 - V, 60 - Hz source. The load resistance is R = 200 ohm. a ) Design a C - filter so that the ripple factor of the output voltage is less than 5
A certain power transistor is packaged in a TO-220 case having a thermal resistance, RJC = 3°C/W. The device will be mounted using a mica insulator and silicone grease (RCS = 1°C/W) onto a h
The Y values correspond to an X domain ranging from -3 to 6 with a step size of 0.01. The program must use a function that performs the numerical differentiation method described below to calculate
Critical frequency for the input low pass network, and the output low pass network, estimate the values for Cbe, Cjc, Cbc, and Cje. Concider the resistance of the signal sourceRs to be equal to the
Are these signals periodic, find their fundamental period T and their fundamental frequency, otherwise prove that they are non-periodic 1) x(t)= 4 cos(12 t+40) + sin(16 t) 2) x(t)=cos4t +3e-j12t
how do you determine the value of Xl in a parallel resonant circuit, when all youre given is Xc, Rcoil, and the parallel resistance
A voltage divider provides a voltage of 1 Volts. Design a circuit that uses one or more op-amps so that the 1 volt is amplified by 7.
A system is called complex if a real-valued input can produce a complex-valued output. Suppose a linear, time-invariant complex system has an impulse response of h(t)= j[u(-t+2)-u(-t)]
A shunt-connected a DC motor has zero rotational losses and R A = 0. Assume that R A and R adj is constant [except in part (d)] and that is directly proportion to feild current. For VT= 200 V and P
Use Matlab to find out what function in time x(t) resulted in the Fourier Series Coefficients Xn = j/(2*p*n) for n?0 and X0=0. You can accomplish this by synthesizing the signal from sufficient freq
A pn-junction is uniformly doped and has dopant concentration of NA = 4 x10^16 cm-3 in the p-region at 300K. AT zero bias, 20% of the total space charge region (W) is extended in the p-region. Calcu
An Al0.3Ga0.7As p-n junction LED with doping level ND = 1 x 10^18 cm-3 on n-side and NA=1x10^15 cm-3 on p-side has Vf = 0.9 V forward bias across its junction. The LED cross-section is 200 µm
a) Draw a sketch of the spectrum of x(t) = sin3(400πt) Label the frequencies and complex amplitudes of each component. Determine the minimum sampling rate that can be used to sample x(t) without al
Draw a circuit model of the path of current through the human body for a person touching a voltage source with both hands who has both feet at the same potential as the negative terminal of the volt