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Write a Gumnut subroutine that performs the function of the circuit described in Exercise 8.8. The subroutine takes an 8-bit unsigned binary amplitude value in r2 and outputs a corresponding value to an 8-bit register at port address 28, connected to the cathodes of an 8-LED commonanode bar display.
Exercise 8.8
Some digital audio applications use an LED bar display, consisting of a row of LED indicators to display the volume level of the audio signal. Assuming that the loudness is proportional to the logarithm of the signal amplitude, we can work out which LEDs to light by finding the left-most 1 bit in the unsigned binary number representing the amplitude. Design a circuit to drive an 8-LED common-anode bar display, given an 8-bit unsigned binary amplitude value.
A capacitor, an electric resistance heater, and an impedance are connected in a parallel to a 120 volts, 60Hz system. the capacitor draws 50VARs, the heater draws 100 watts and the impedance coil draws 269 VA at a power factor. Find the Apparent P..
Understanding low, high and band pass filters, A signal in the IF section of an FM radio receiver occupies the frequency band 10.61 MHz to 10.79 MHz. Compute the bandwidth of this signal.
A square wave signal with voltage levels 0 volts and 2.0 volt at a frequency of 1.00 MHz is multiplied by a sine wave at a frequency of 5.0 MHz
explain from an atomic viewpoint why the charges that are transferred during the buildup of electrostatic charges
A Three phase thyristor converter, VLL=460V (rms) at 60 Hz, and Ls=5mH, the firing angle "a " is 30 degrees electrical, the converter is consuming 5Kw, the DC current is assumed to be constant.
find the fourier series coefficients of z(t) (use the results of a) and b) along with the multiplication property of continuous time fourier series coefficients). find the fourier series coefficients of z(t) through direct expansion of z(t) in tri..
Beaver Corp preferred stock has a market price of $14.50. If it had a yearly dividend of $3.50, what is your expected rate of return if you purchase the stock at its market price?
Obtain polar plot using nyquist command. determine the stability of closed loop system based on nyquist criterion. design a compensator to meet the P.O. = 10%. Plot the before and after plot on the same nyquist plot.
question 1.let us assume there is a two-terminal box. there are one resistor one capacitor and one inductor inside the
Upon studying low bids for shipping contracts, a microcomputer manufacturing firm finds that intrastate contracts have low bids that are uniformly distributed between 20 and 25, in units of thousands of dollars.
A battery has an internal resistance of 0.029-ohm and an emf of 9.00 V. What is the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.60 V
Suppose that a new transmission line is to be added to the power system between Bus 1 and Bus 4. The line is rated at 200 MVA, and its series impedance is 0.008 + j0.064 pu. Assume that no capacitors have been added to the system, and determine t..
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