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An asynchronous cardiac pacemaker operates at a rate of 70 pulses/min. These pulses are of 2ms duration and have an amplitude of 5V when driving a 500ohm load.
A) What is the total energy supplied to this load over a 10 year period?
B)Suppose that 35% of the energy from the power supply goes into the output pulses. What must be the capabilities of the power supply to operate the pacemaker for 10years?
C) Assume that the power supply is TWO 2.8V lithium cells. What must the milliampere-hour capacity of EACH cell be to operate this pacemaker for 10 years?
(a) Determine the cone angle that will match the line to an infinite length biconical antenna. (b) For the cone angle of part (a), determine the two smallest cone lengths that will resonate the antenna.
A two-winding, single-phase transformer rated 3 kVA, 220:110 V, 60 Hz is connected as an autotransformer to transform a line input voltage of 330 volts to a line output voltage of 110 V and to deliver a load of 2 kW at 0.8 lagging power factor.
Consider a MOS device with the following parameters: Aluminum gate, p- type silicon substrate, oxide thickness of 20nm, and surface fixed oxide charge of 4x1010 cm-2 (a) Determine the doping concentration such that the threshold voltage is 0.5V.
A variant of the binary symmetric communication channel is called a binary erasure channel. The transmitter sends a ‘0' or ‘1,' but at the receiver there are three possibilities: a ‘0' or ‘1' or ‘undecided bit (called erasure)' rec..
Can you write a part of project which is about developing a schedule of power substation on primavera (P6), focusing on the Changes that will happen based on the following:
at 60 Hz, a series LCR circuit contains reactances Xl= 20 ohms and Xc= 14 ohms and resistance = 10 ohms. what is the impedance at resonant frequency
A boost converter has 5 V input and 12 V output at 60 W. The diode is ideal. The transistor requires 1 uS to turn on or off. The switching frequency is 100 kHz. The storage components are large.
Gaussian White Noise with Power Spectral Density Sn(f) = 10 mu W/Hz is applied to a linear system with impulse response h(t) = exp(- |5t|)u(t)cos(2 phi 10t) Write the equation for the Power Spectral Density of the noise passed through the system
You have a laundry room where the following loads are connected to a 208V circuit: 2500W electric base board heater, 600W wash machine, 3600W dryer, and a 1000W iron. All loads are connected in parallel.
If a silicon diffusion is doped with phosphorus (donors) at a concentration of 1.0 x 10^16/cm^3, and has a sheet resistance of 365.7 ohm/cm^2 square, what is the thickness of the diffusion in microns
A binary data stream needs to be transmitted at 5 Mbit/s by means of binary signaling. To reduce ISI, a cosine roll-off pulse of roll-factor r = 0.25 will be used. Determine the minimum required bandwidth for this transmission
a dsp system is given with the following specifications: design requirements: sampling rate 20,000 Hz Maximum allowable gain variation from 0 to 4,000 Hz = 2dB 40dB rejection at the frequency of 16000 Hz
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