Presume that we are designing a cardiac pacemaker circuit., Ask an Expert

Academics

Find the least value of capacitors, average current drain from a battery.

Presume that we are designing a cardiac pacemaker circuit. The circuit is required to deliver pulses of 1-ms duration to the heart that can be modelled as a 500-? resistance. The peak amplitude of the pulses is required to be 5V. Though, the battery delivers only 2.5V. Therefore, we decide to charge two equal value capacitors in parallel from the 2.5-V battery and then switch the capacitors in series with the heart during the 1-ms pulse. What is the minimum value of the capacitors required so the output pulse amplitude remains between 4.9V and 5.0V throughout its 1-ms duration? If the pulses occur once a second, what is the average current drain from the battery? Utilize approximate calculations assuming constant current during the output pulse. Find out the ampere-hour rating of the battery so it lasts for five years.

Plan set of switches to satisfy the requirements of the circuit

Hint: use discharging mode to find capacitors and charging mode to find out average current.

Illustrate the circuits and plots for discharging and charging mode with ALL voltages indicated

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M917200

Have any Question?

Related Questions in Physics

Atnbspt 0nbspa block with massnbspm 5 kgnbspmoves with a

At t = 0 a block with mass M = 5 kg moves with a velocity v = 2 m/s at position x o = -.33 m from the equilibrium position of the spring. The block is attached to a massless spring of spring constant k = 61.2 N/m and sl ...

A single-phase diode bridge is supplied by an acnbspsource

A single-phase diode bridge is supplied by an a c source of 257 V, 60 Hz. This bridge in turn supplies a dc load of I dc = 60 A. Estimate the voltage drops due to (1) source with an inductance of 0.02 m H , (2) each dio ...

A child and sled with a combined mass of 527 kg slide down

A child and sled with a combined mass of 52.7 kg slide down a frictionless hill that is 10.9 m high at an angle of 29? from horizontal. The acceleration of gravity is 9.81 m/s2 . If the sled starts from rest, what is its ...

Starting from rest a runner reaches a speed of 27 ms in 20

Starting from rest, a runner reaches a speed of 2.7 m/s in 2.0 s. In the same 2.0 s time, a motorcycle increases speed from 38.0 to 43.0 m/s. In both cases, assume the acceleration is constant. (a) What is the accelerati ...

If the a1n-si schottky barrier contact shown in given

If the A1/n-Si Schottky barrier contact shown in given Figure was used as the ohmic contact to the n-Si surface of the 1957SNS p+/n diode, how would the forward I-V characteristics look? Sketch it both on linear-linear a ...

In the circuit the capacitor is fully charged when switch s

In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time needed for the potential energy stored by the circuit to be equally distributed between the capacitor and inductor. The capacitan ...

Questionyoure driving down a highway and you decide to

Question: You're driving down a highway, and you decide to accelerate flaunting the speed limit, you accelerate way up there. At one point, you're going (a) 100km/hr. Later, you're going (b) 0.25 times the speed of light ...

1 in the 1980s the term picowave was used to describe food

1. In the 1980s, the term picowave was used to describe food irradiation in order to overcome public resistance by playing on the well-known safety of microwave radiation. Find the energy in MeV of a photon having a wave ...

An elevator is moving upward at 096 ms when it experiences

An elevator is moving upward at 0.96 m/s when it experiences an acceleration 0.35 m/s 2 downward, over a distance of 0.71 m. What will its final velocity be?

Algebraic physics question older railroad tracks in the usa

Algebraic Physics Question: Older railroad tracks in the USA are made of 12 meter long pieces of steel. When the tracks are laid, gaps are left between the sections to prevent buckling when the steel thermally expands. I ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert