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This problem concerns the design of a digital system that converts an 8-bit signed integer (negative numbers are represented in 2's complement) to a floating-point number. Use a floating-point format similar to the ones used in Section 7.1.1 except the fraction should be 8 bits and the exponent 4 bits. The fraction should be properly normalized.
(a) Draw a block diagram of the system and develop an algorithm for doing the conversion. Assume that the integer is already loaded into an 8-bit register, and when the conversion is complete the fraction should be in the same register. Illustrate your algorithm by converting -27 to floating point.
(b) Draw a state diagram for the controller. Assume that the start signal is present for only one clock time. (Two states are sufficient.)
(c) Write a VHDL description of the system.
1 kW heating element of a 230 V, 50 Hz electric stove is to be controlled by a triac circuit. The gate circuit of the triac uses a 0.2 mF capacitor and a diac with a break over voltage of 50 V. Calculate the adjustable resistance value to provide ..
A)What is the standard frequency of the AC voltage generated and distributed by an electrical utility B)Explain the function of the prime mover in the generating process.
A uniform plane electromagnetic wave propagates in a lossless dielectric medium. The electric field in the wave has the instantaneous expression E(z,t) = iy 3 sin(3pi.109t + 100piz 600), V/m. i) What is the frequency of the wave in Hz
Knowing that the shear in the beam is vertical and equal to 2000 lb and that the allowable average shearing stress in each bolt is 7500 psi, determine the smallest permissible bolt diameter that can be used.
Define Design with Multiplexer, Design a circuit using one 16 TO 1 multiplexer with W, X,Y,Z on the control inputs
show diagramatically the logic arrangement of a programmable logic array required to implement an S-R latch.
A new semiconductor has Nc = 1019 /cm3 and Nv=5 x 1018, and Eg = 2eV. If it is doped with 1017 donors (fully ionized), calculate the electron, hole, and intrinsic carrier concentrations at 627K.
A thyristor is triggered by a pulse of train of 5kHz.The duty ratio of the pulse train are 0.5. If allowable average gate power is 100W, calculate the maximum allowable gate drive power.
Will the electric field inside change (how much if yes)? Will the stored energy in the capacitor change (how much if yes)?
Semiconductor A has a bandgap of 2.5eV while semiconductor B has a bandgap of 1.5eV. What is the ratio of the intrinsic carrier concentrations in the two materials (niA/niB) at 300K
The following binary numbers have a sign in the leftmost position and, if negative, are in 2s complement form. Perform the indicated arithmetic operations and verify the answers. a.) 110001 - 010010
A small businessman planes to start a taxi -service and purchased a new car for #36000 with borrowed money at 15% compounded annually , his net income is $12000 per year and the salvage value of the car at the end of 4 years is $5000.
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