Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Assume that we are designing a cardiac pacemaker circuit. The circuit is needed to deliver pulses of 1-ms duration to the heart which can be modeled as a 500 ohm resistance. The peak amplitude of the pulses is needed to be 5V. Though, the battery delivers just 2.5V. Thus, we decide to charge two equivalent value capacitors in parallel from the 2.5 V battery and then switch the capacitors in series with the heart all through the 1-ms pulse. Determine the minimum value of the capacitors needed so the output pulse amplitude remains between 4.9V and 5.0V all through its 1-ms duration? If the pulses take place once a second, then what is the average current drain from the battery? Use estimated computations supposing constant current throughout the output pulse. Determine the ampere-hour rating of the battery so it lasts for 5 years.

Q1. Design set of switches to satisfy the needs of the circuit.

Hint: Use discharging mode to find out the capacitors and charging mode to compute average current.

Q2. Draw the circuits and plots for discharging and charging mode with ALL voltages pointed.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M99753

Have any Question? 


Related Questions in Physics

A 0427 kg mass is attached to a spring with a force

A 0.427 kg mass is attached to a spring with a force constant of 25.3 N/m and released from rest a distance of 3.07 cm from the equilibrium position of the spring. Calculate the speed of the mass when it is halfway to th ...

Starting from rest a runner at a track meet reaches a speed

Starting from rest, a runner at a track meet reaches a speed of 9.6 m/s in 1.5 s. How far does she run during this time, assuming her acceleration is uniform?

Four points are selected at random on the surface of a

Four points are selected at random on the surface of a sphere. What is the probability that all of them lie on a single hemisphere? How does this question relate to T(N, K)?

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 ...

A 42 m long uniform beam is supported by a cable at its

A 4.2 m long uniform beam is supported by a cable at its center. A 69 kg steelworker stands on one end of the beam, and a bucket of concrete is suspended from a point 76 cm from the beam's center, on the other side of th ...

Explain why cigarettes are effective delivery systems for

Explain why cigarettes are effective delivery systems for nicotine.

A kilogram weighs about 22 poundsa write a formula for the

A kilogram weighs about 2.2 pounds. (a) Write a formula for the function, f, which gives an object's mass in kilograms, k, as a function of its weight in pounds, p. (b) Find a formula for the inverse function of f. What ...

Question 1a in no more than 200 words briefly explain both

Question 1 (a) In no more than 200 words, briefly explain both the similarities and differences between Newton's law of universal gravitation and Coulomb's law. (b) Consider two point-like objects, A and B, the first of ...

The blood flow speed through an aorta with a radius of 1 cm

The blood flow speed through an aorta with a radius of 1 cm is 0.28 m/s. if hardening of the arteries causes the aorta to be constricted to a radius of 0.8 cm, what is the new blood flow speed?

1 for a crystal of finite size it is found that there are

1. For a crystal of finite size it Is found that there are 100 allowed electron energy levels at the energy E 1  in the conduction band and that the Fermi energy lies at E 1 , i.e. E F -E 1 . How many electrons are there ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro