Design a circuit for indicate the connection of a battery, Electrical Engineering

You are asked to design a circuit that indicates if a 12 V battery has been connected the correct way around to two terminals, A and B. To do this, you have chosen to use a special kind of diode known as a LED.

A green LED will light to indicate the battery is connected using the correct orientation (positive to terminal A, negative to terminal B) and a red LED will light to show an incorrect connection (negative to terminal A and positive to terminal B).

A LED acts in a similar way to a rectifier diode, it lets current flow from the anode to the cathode, but blocks current from flowing from the cathode to the anode. When current is allowed to flow, the LED will also light up.

However, unlike a rectifier diode, which has a 0.6 - 0.8 volt drop across it when conducting, a LED typically has 2.5 volts drop. Too much current flowing through a LED can damage it; your circuit needs to limit the amount of current flowing through any LED used. After reading the specification sheet from your LED's supplier, you have found that to achieve a sufficient brightness without damaging the LED, a green LED should have 30mA flowing through it while a red LED should have 45mA.

Design the circuit and include all calculations necessary to show why you selected specific components. Draw your circuit twice, once for the correct connection of the battery and once for the incorrect connection. For each case, clearly show the voltage across each component and the current in each branch.

Posted Date: 2/28/2013 1:51:24 AM | Location : United States







Related Discussions:- Design a circuit for indicate the connection of a battery, Assignment Help, Ask Question on Design a circuit for indicate the connection of a battery, Get Answer, Expert's Help, Design a circuit for indicate the connection of a battery Discussions

Write discussion on Design a circuit for indicate the connection of a battery
Your posts are moderated
Related Questions
Energy Bands 1) Since isolated atoms are brought together to make a solid, the electron wave functions begin to overlap. 2) Several interactions occur, and, at the proper i

Balance Business Score Card in KPI Information Age The current era is driven by the information. It is a revolutionary transformation and industries are competing in th

Call Instructions Call instruction are used to call a  subroutine program in assembly language  procedure and functions are called  subroutines. There are two types  of calls i

A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R 1 = 10 , X l1 = X l2 = 12.5 ,R 2 = 11.5 , and X m = 250 . The core

explain the application of the Si,zener,and LED diodes


What is synchronous data transfer? It is a data method which is used when the I/O device and the microprocessor match in speed. To transfer a data to or from the device, the us

Consider an elementary two-pole rotating machine with a uniform (or smooth) air gap, as shown in Figure, inwhich the cylindrical rotor ismountedwithin the stator consisting of a ho

BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

Which clipper would you prefer between the series and the shunt clipper? Why?