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Suppose that we are designing a cardiac pacemaker circuit. The circuit is required to deliver pulses of 1-ms durstion to the heartthat can be modeled as a 500-Ω resistance. The peak amplitudeof the pulses is required to be 5 V. However, the battery deliversonly 2.5 V. Therefore, we decide to charge two equal-valuecapacitors in parallel from the 2.5-V battery and then switch thecapacitors in series with the heart during 1-ms puls. What is theminimum value of the capacitors required so the output pulseamplitude remains between 4.9 V and 5.0 V throughout its 1-msduration? If the pulses occur once a second, what is the averagecurrent drain from the battery, Use approximate calculations assuming constant current during the output pulse. Find the ampere-hour rating of the battery so its lasts for five years.
The circuit is also required to recognize overlapping sequence such that if the input string is x = 1101111111010 then the output will be z = 0000001111000. Use D Flip-Flops AND a separate design with JK Flip-Flops.
Write a C program for a HCS12 microcontroller that writes the value, 0x78, to Memory Location VAR1 and then calls a delay function. The delay function should generate a delay of 0.25 milliseconds.
Design (showing address, data, control line connections) a 32*8 low-order interleaved memory system using 16*2 memory chips for a system that uses 8-bit address bus.design assuming the unused address lines to be all ‘0's
During an all-night cram session, a student heats up a 0.491 liter (0.491 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19.7 °C, and the beaker is filled to the brim.
Write a program to compute the average of an array of N 8-bit numbers and store the result at $1001. The array is stored at memory locations starting from $1010. N is no larger than 255. Assume N is stored in the memory location $1000.
The program will store these values into an array and call a function that will return the average of the temperatures. It will also call a function that will return the highest temperature and a function that will return the lowest temperature.
Use a K-Map to design a circuit that will accept 5-bit input, and output the value left-shifted by 1. For example, if the input is 10101, the output is 01010. Design a circuit that implements this function. Write the VHDL code.
Design an open-circuited, shunt stub matching network to match a 125 + j20 ohm load to a 700 MHz, 50ohm generator. Show the lengths of your transmission lines in fractions of a wavelength.
suppose you only have one integer what is the minimum? then a second integer come in , how to find minimum now you already know the minimum of the first two, how to find the new minimum when you have 3rd integer come in
A power amplifier has a gain of 20 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
A 10 cm length of a K-band copper waveguide is filled with a dielectric material with er = 2.55 and tan f = 0.0015. If the operating frequency is 15 GHz, find the total loss through the guide and the phase delay from the input to the output of th..
A "Clock" pulse for a flip-flop could be generated by manually filpping a switch from 0 to 1 and then back to 0. but switches such as those on the logic designer "bounce" when switched from on state to another.
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