Calculate the maximum charge current, Applied Statistics

For the circuit shown below;

  • Write a KCL equation for Node A, Node B, Node C and Node D.
  • Write a KVL equation for Loop 1, Loop 2 and Loop 3.

 

2411_Calculate the maximum charge current.png

A simple circuit to charge a 12V battery is shown below. A fixed DC voltage source is set to the required maximum charging voltage, usually 14.5V. The resistor R1 is used to limit the initial charging current when the battery is discharged.

1888_Calculate the maximum charge current1.png

(i)  Design a battery charger circuit to charge a 12V battery from a 14.5V fixed DC voltage source. The charger should have two maximum current settings selected by a 2 position switch. The high setting should provide a maximum charge current of 1A and the low setting should provide a maximum current of 300mA. Assume a fully discharged 12V battery has a voltage of 10.8V across its terminals. Include a voltmeter and ammeter in your circuit design to allow the battery voltage and current to be monitored while charging. Draw the schematic of the battery charger showing all component values.
 
(ii) For each current setting redraw the circuit showing all voltages and currents when charging a fully discharged battery. Calculate the power dissipated in the resistor, the power delivered to the battery and the power provided by the DC voltage source. How efficient is the battery charger for each setting. 
 
Resistors only come in a limited range of 'preferred' values so it is not often possible to buy the value you want "off the shelf". Assume you have the resistors shown in table one available.

(i)  Suggest, showing all calculations, how you could build the circuit using only these available resistors.

(ii) Using these new resistor values recalculate the maximum charge current for each setting.

Posted Date: 2/28/2013 4:16:24 AM | Location : United States







Related Discussions:- Calculate the maximum charge current, Assignment Help, Ask Question on Calculate the maximum charge current, Get Answer, Expert's Help, Calculate the maximum charge current Discussions

Write discussion on Calculate the maximum charge current
Your posts are moderated
Related Questions
A researcher is interested in comparing the effectiveness of three different parts of therapy for anger problems. 8 participants are randomly assigned to 3 treatment conditions: Co

Meaning and Definitions of Regression The dictionary meaning of regression is just opposite the meaning of progression. Progression means to move forward while regression means

Arithmetic Average or Mean The arithmetic mean is the most widely and the most generally understandable of all the averages. This is clear from the reason that when the term

Case Problem: A Bipartisan Agenda for Change In a study conducted by Zogby International, more than 700 New Yorkers were polled to determine whether the New York state government w

Factor analysis (FA) explains variability among observed random variables in terms of fewer unobserved random variables called factors. The observed variables are expressed in

Let X 1  and X 2  be two independent populations with population means μ 1  and  μ 2  respectively. Two samples are taken, one from each population, of sizes n 1  and n 2  re

A sample of college students and a separate sample of adults aged 30-59 were surveyed regarding the amount of fruit they eat each day.  The results are shown in the histograms belo

a) What is meant by secular trend? Discuss any two methods of isolating trend values in a time series.

There are n seats on an airplane and n passengers have bought tickets. Unfortunately, the first passenger to enter the plane has lost his ticket and, so he just chooses a seat at r

In a three-cornered paint ball duel, A, B, and C successively take shots at each other until only one of them remains paint free. Once hit, a player is out of the game and gets no