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1. Write the full equations to light the bottom segment of a 7-segment display. INLCUDE the hexadecimal digits too ( b, c, d, and E ). Then simplify the equations using a k-map and draw the final circuit.
2. Draw a CMOS circuit for an S-R flip-flop.
3. Explain the basic operation of a CMOS transmission gate and compare it to a tri-state buffer. There is one important difference, make sure to explicitly discuss that difference.
4. Design a 3-bit counter using D flip-flops to cycle through the following sequence: 010, 101, 110, 001. Make sure the counter is self-starting.
Design the circuit to establish a dc emitter current of 1mA and provide the highest possible voltage gain while allowing for a maximum signal swing at the collector of +-2V. Use +10V and -5V power supplies.
How should three capacitors and two batteries be connected so that the capacitors will store the maximum possible energy
Design a circuit with minimum number of gates for a binary multiplier that multiplies two unsigned four-bit numbers, Using Inverters, AND, OR gates and Full Adders.
The pulse generator circuit accepts a 16 Hz pulse and converts the signal to a 1 Hz pulse, that is, a clock signal once every second. This signal is then used to drive a counter that controls how the lights are illuminated.
Write and test a program for the EASy68k to input a string from the keyboard, convert all letters to uppercase and echo (output) the new string to the screen. Use a subroutine to perform the lower-to-upper case conversion.
A SEMICONDUCTOR IN THERMAL EQUILIBRIUM, HAS A HOLE CONCENTRATION OF P0=1016 CM-3 AND AN INTRINSIC CONCENTRATION OF Ni =1010 CM-3. THE MINORITY CARRIER LIFE TIME IS 4*10-7s.
In a multiuser CDMA system of DSSS, all transmitters are at equal distances from the receivers. The additive white Gaussian noise density Sn(f) = 5x10^-7 W/Hz. BPSK is used by all users with bit rate = 16 kb/s. There are 16 users.
Design the electrical system for a shopping center with 500,000 square feet at least 30 spaces of three different sizes (5,000, 10,000 and 25,000 sf). They may be offices, banks, restaurants and shops.
Sketch the complete Nyquist diagram for the following open-loop transfer function. Determine the effect of K on the closed-loop stability. Explain how the "shortcuts" contribute to the diagram.
Design a code to open a vault (after entering the correct 4-number sequence "1234"), it displays the word OPEN when the correct sequence is entered.
The cutoff frequencies of a series resonant circuit are 5400 Hz and 6000 Hz. a. Find the bandwidth of the circuit. b. If Qs is 9.5, find the resonant frequency of the circuit.
An NMOS operating in triode region with Vds=0.1V conducts 60μA forVgs=2V. The device conducts 160μA for Vgs=4V. Calculate Vt. IfKn'=25μA/V2 , what is the device W/L What current would flow for Vgs=3V and Vds=0.15V
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