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Suppose that we are designing a cardiac pacemaker circuit. Thecircuit 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 calculationsassuming constant current during the output pulse. Find theampere-hour rating of the battery so its lasts for five years.
a) The input of Hex- to - seven segment decoder is 1010. what will the display show b) A priority encoder has all inputs activated. Which input will be encoded. Why c) how many select input lines are needed for a 128- to - 1 multiplexer
Draw the power supply current as a function of the input voltage for a CMOS inverter. What is the current when the input is at VOH. What transistor causes this. What is the current when the input is at VOL.
Measurments taken of a square-wave signal using a frequency-selective voltmeter(called a spectrum analyzer) show its spectrum to contain adjacent components(spectral lines) at 98KHz and 126 KHz of amplitudes 63 mV and 49 mV
A clock signal of 100 MHz (10^8 Hz) is available. Design a circuit that generates a sec- ond clock signal of 12.5 MHz. Design a 3-bit binary counter and the most significant bit is the desired clock signal.
The owner wants to an addition to the building in the above question which will have a large kitchen and dining area. It will add an overall 120 kW of kitchen loads (pf = 0.95 lag). What is the new profile of the total building load in terms of P,..
Design a low pass filter with a single op amp, maximum gain of 40 dB, and a corner frequency of 60 Hz. Assume that the input signal has a maximum source resistance of 100 W and you want the error in the gain the pass band
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
Calculate the span, offset, step size, resolution, and percentage resolution for an analog range of 0 to 5 volts for 8-bit digital conversion. For such a system calculate the analog output of a D/A with the following digital inputs: $15, $4D, $7E,..
Point charges Q1 and Q2 are respectively located at (4,0,-3) and (2,0,1). If Q2 = 4 nC, find Q1 such that (a) The E at (5,0,6) has no z-component (b) The force on a test charge at (5,0,6) has no x-component.
Three single-phase transformers, each rated 15 MVA, 13.2:66 kV, with a leakage reactance of 0.1 pu, are connected to form a three-phase Y-Δ bank, one side of which is connected to a 120-kV tranmission line and the other side, to three 12-ohm resis..
Wastewater leaving the ACME cheese factory must be neutralized to a pH between 6.8 and 7.2. Citric acid is available to decrease pH and sodium hydroxide is used to increase pH.
Calculating peak frequency deviation and Carson's rule bandwidth, A baseband signal has a frequency range from 50 Hz to 15.0 kHz. The signal is transmitted using frequency modulation. The FM transmitter has a modulation constant of 100 kHz per vol..
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