Pages

Thursday, December 2, 2010

November 2010 ECE Board Exam Result

The Professional Regulation Commission has released the November 2010 Electronics Engineer board exam results as PRC announced 1,026 out of 4,715 (21.7%) passed the Electronics Engineer Licensure Examination given by the Board of Electronics Engineering in the cities of Manila, Baguio, Cagayan de Oro, Cebu, Davao and Iloilo last November 2010.

Here are the successful examinees who made it to the Top 10:

1 ANTONIO VALENTE GAYOSO MACARILAY TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES-MANILA 93.40
WILMIR BUTARDO NICANOR BULACAN STATE UNIVERSITY (FOR.BCAT)-MALOLOS 93.40
2 EDDIE DEMAPITAN CLAVE JR UNIVERSITY OF SAN AGUSTIN 93.30
MARK JOSEPH ILAGAN LIAN DE LA SALLE UNIVERSITY-LIPA 93.30
3 MIGUEL CARLO LICUP PURISIMA UNIVERSITY OF THE PHILIPPINESDILIMAN 92.70
4 MA LARA NUGUIT BANTILO UNIVERSITY OF THE EASTCALOOCAN 90.70
DARLING ANGEL GERONA MONTEALTO CEBU INSTITUTE OF TECHNOLOGY 90.70
5 LEO AUGUSTUS LIM SY DE LA SALLE UNIVERSITY-MANILA 90.50
6 MIRGEL VINCENT UMALI ESTERON UNIVERSITY OF THE PHILIPPINESDILIMAN 90.10
7 JOMAR BAGTAS ANDRADE FEU-EAST ASIA COLLEGE 89.80
NICK IVAN ESPINO PALTIGUERA CENTRAL PHILIPPINE UNIVERSITY 89.80
8 LEAH TIONGCO DECASA HOLY NAME UNIVERSITY (FOR.DIVINE WORD-TAGBILARAN) 89.70
9 JENNIFER ANTONIO AQUILIZAN POLYTECHNIC UNIVERSITY OF THE PHILIPPINES-STO. TOMAS 89.10
FRANCIS JOY TAYAG NUCOM HOLY ANGEL UNIVERSITY 89.10
10 CLIFFORD RANIEGO BAANG MINDANAO UNIVERSITY OF SCIENCE & TECHNOLOGY 89.00

View the complete list of the November 2010 ECE board exam result 
HERE:


source: BoardExamResults



Sunday, November 21, 2010

Schaum's Outline of Introduction to Probability and Statistics

Students will save time and master non-calculus-based probability and statistics with this powerful study guide. It simplifies difficult theories and focuses on making clear the areas students typically find hardest to understand. The hundreds of problems solved step-by-step make it easier to master even complex statistical problems and get the best grades. Ideal for students in liberal arts, social and health sciences, and education programs. Perfect to supplement class work or for independent study.

READ ONLINE
DOWNLOAD



Saturday, November 20, 2010

Materials Science and Engineering: An Introduction by William Callister

Building on the extraordinary success of six best-selling editions, William Callister's new Seventh Edition of Materials Science and Engineering: An Introduction continues to promote student understanding of the three primary types of materials (metals, ceramics, and polymers) and composites, as well as the relationships that exist between the structural elements of materials and their properties.

It continues to promote student understanding through clear and concise writing and familiar terminology that is not beyond student comprehension. Topics are organized and explained in an approachable manner, so that even instructors who do not have a strong materials background can teach from this user-friendly text.

DOWNLOAD



Advanced Engineering Mathematics by Erwin Kreyszig

Introduces engineers, computer scientists, and physicists to advanced math topics as they relate to practical problems. The material is arranged into seven independent parts: ODE; Linear Algebra, Vector calculus; Fourier Analysis and Partial Differential Equations; Complex Analysis; Numerical methods; Optimization, graphs; Probability and Statistics.

Erwin Kreyszig’s Advanced Engineering Mathematics, 9th Edition introduces engineers and computer scientists to advanced math topics as they relate to practical problems.

New problem sets.
New Computer Experiments, using the computer as an instrument of “experimental mathematics” for exploration and research.
More on modeling and selection methods.
Accurate and solid theoretical foundation.
Clear examples and exposition of material.
Modern and standard notations.

DOWNLOAD
Solutions manual:
DOWNLOAD



PSpice Student Version

Design and simulate analog and digital circuits using PSpice. Because the analog and digital simulation algorithms are built into the same program, PSpice A/D simulates mixed-signal circuits with no performance degradation because of tightly coupled feedback loops between the analog and digital sections.

Limited versions of the following products are included in the Student Version of PSpice:

PSpice A/D 9.1, Web Update 1, including PSpice Schematics 9.1
Your choice of schematic editors (specify during installation)
PSpice Schematics 9.1
Capture 9.1, Web Update 2

(Visit Electronics-lab for PSpice tutorials)

DOWNLOAD



Sunday, October 31, 2010

Schaum's Outline of Electromagnetics

Here's your key to step-by-step mastery of electromagnetics— and better grades! This popular Schaum's Outline gives you completely worked problems, memorable examples, and easy-to-understand explanations of all relevant theory! Students love Schaum's Outlines! Each and every year, students purchase hundreds of thousands of the best study guides available anywhere. Students know that Schaum's delivers the goods in faster learning curves, better test scores, and higher grades!

Modified to conform to the current curriculum, Schaum's Outline of Electromagnetics complements these courses in scope and sequence to help you understand its basic concepts. The book offers extra practice on topics such as current density, capacitance, magnetic fields, inductance, electromagnetic waves, transmission lines, and antennas. Appropriate for the following course: Electromagnetics.

DOWNLOAD
DOWNLOAD
password: books_for_all



Tuesday, October 12, 2010

Green's Theorem


In mathematics, Green's theorem gives the relationship between a line integral around a simple closed curve C and a double integral over the plane region D bounded by C. It is the two-dimensional special case of the more general Stokes' theorem, and is named after British mathematician George Green.
Let C be a positively oriented, piecewise smooth, simple closed curve in the plane  \mathbb{R} 2, and let D be the region bounded by C. If L and M are functions of (xy) defined on an open region containing D and have continuous partial derivatives there, then
\oint_{C} (L\, \mathrm{d}x + M\, \mathrm{d}y) = \iint_{D} \left(\frac{\partial M}{\partial x} - \frac{\partial L}{\partial y}\right)\, \mathrm{d}x\, \mathrm{d}y.
For positive orientation, an arrow pointing in the counterclockwise direction may be drawn in the small circle in the integral symbol.
In physics, Green's theorem is mostly used to solve two-dimensional flow integrals, stating that the sum of fluid outflows at any point inside a volume is equal to the total outflow summed about an enclosing area. In plane geometry, and in particular, area surveying, Green's theorem can be used to determine the area and centroid of plane figures solely by integrating over the perimeter.
(From Wikipedia)




Saturday, September 25, 2010

Vector Integration: Line Integral


In mathematics, a line integral (sometimes called a path integralcontour integral, or curve integral; not to be confused with calculating arc length using integration) is an integral where the function to be integrated is evaluated along a curve.
The function to be integrated may be a scalar field or a vector field. The value of the line integral is the sum of values of the field at all points on the curve, weighted by some scalar function on the curve (commonly arc length or, for a vector field, the scalar product of the vector field with a differential vector in the curve). This weighing distinguishes the line integral from simpler integrals defined on intervals. Many simple formulae in physics (for example,W=F·s) have natural continuous analogs in terms of line integrals (W=∫C F· ds). The line integral finds the work done on an object moving through an electric or gravitational field, for example.




Schaum's Outline of Vector Analysis

The guide to vector analysis that helps students study faster, learn better, and get top grades
More than 40 million students have trusted Schaum's to help them study faster, learn better, and get top grades. Now Schaum's is better than ever-with a new look, a new format with hundreds of practice problems, and completely updated information to conform to the latest developments in every field of study.
Fully compatible with your classroom text, Schaum's highlights all the important facts you need to know. Use Schaum's to shorten your study time-and get your best test scores!
Schaum's Outlines-Problem Solved.

DOWNLOAD



Friday, September 10, 2010

Equilibrium of Concurrent and Coplanar Force System

The conditions of equilibrium for concurrent force systems are obtained by determining the equations that produce a zero resultant. The magnitude of the resultant of a concurrent force system is found by means of the equation:
Obviously, the resultant will be zero and equilibrium will exist when the following equations are satisfied:
These equations are known as the conditions of equilibrium. It is important to note that with two conditions of equilibrium, only two unknown quantities can be determined to create equilibrium of a concurrent force system. (from Engineering Mechanics, 2nd edition by Ferdinand Singer)

The presentation file below gives a thorough discussion on equilibrium of concurrent and coplanar force systems:




Superposition

Superposition is a good method to apply in analyzing circuits with multiple sources. The basic concept of this method is to analyze a circuit one source at a time. Using the Superposition Theorem, we remove all the independent sources, except one, and analyze that circuit for that one. Then we repeat the procedure for another source, and so on. Finally, the net result is found by summing all the single -source results. 

'Removing' Power Sources
If we have two voltage sources and we were to remove one source, and still have a complete circuit, we must replace the voltage source with a short circuit.




Tuesday, September 7, 2010

Source Transformation

In order to solve difficult and complicated circuits, it is important to simplify the given circuit for easier analysis. One way to simplify circuits is by Source Transformation. It is the process of using Ohm's Law to take an existing voltage source in series with a resistance, and replace it with a current source in parallel with the same resistance or vice-versa. This method can be applied to Thevenin's theorem and Norton's theorem.
Source Transformation for Independent Sources




Sunday, August 29, 2010

Schaum's Outline of Basic Circuit Analysis

If you want to make better grades, improve your comprehension, and spend less time studying, this Schaum's Outline is for you! It's an easy-to-use study tool to help you master circuit analysis and ace your tests! Students love Schaum's Outlines! Each and every year, students purchase hundreds of thousands of the best study guides available anywhere. Students know that Schaum's delivers the goods--in faster learning curves, better test scores, and higher grades!

DOWNLOAD



Wednesday, August 11, 2010

CCNA Network Fundamentals Presentation Files

Reviewing for Cisco exam?


Reading the entire module in the network academy would really need a lot of time and effort. Good thing the CCNA Network Fundamentals Presentation Files are ready for download!

Part 1 contains chapters 1 to 4, 10 and 11 while part 2 contains the rest of the chapters.





Non-Coplanar Force System

Here are some useful and helpful lectures I found for Non-Coplanar Force System:

Introduction to Non-Coplanar Force System
Applied Mechanics By Hervey F. Girvin



Tuesday, August 10, 2010

Vector Differentiation

In calculus we compute derivatives of real functions of a real variable. In the case of functions of a single variable
            y = f(x)
we compute the derivative of y with respect to x. In the case of a function of several variables
            y = f(x1, x2, ... , xn)
we can compute the derivative of y with respect to any one of the independent variables, viewing the others as fixed.
In vector analysis we compute derivatives of vector functions of a real variable; that is we compute derivatives of functions of the type
            F(t) = f1(t) i + f2(t) j + f3(t) k







This function can be viewed as describing a space curve. Intuitively it can be regarded as a position vector, expressed as a function of t, that traces out a space curve with increasing values of t. Expressed in different notation it is the function
      R(t) = x(t) i + y(t) j + z(t) k






Sunday, August 8, 2010

Bipolar Junction Transistor

The bipolar junction transistor (BJT) is a three-element (emitter, base, and collector) device made up of alternating layers of n- and p-type semiconductor materials joined metallurgically. The transistor can be of pnp type (principal conduction by positive holes) or of npn type (principal conduction by negative electrons), as shown in Fig. 3-1 (where schematic symbols and positive current directions are also shown). The double subscript notation is utilized in labeling terminal voltages, so that, for example, Vbe symbolizes the increase in potential from emitter terminal E to base terminal B. For reasons that will become apparent, terminal currents and voltages commonly consist of superimposed dc and ac components (usually sinusoidal signals).





Schaum's Outline of Electronic Devices and Circuits

This updated version of its internationally popular predecessor provides and introductory problem-solved text for understanding fundamental concepts of electronic devices, their design, and their circuitry. Providing an interface with Pspice, the most widely used program in electronics, new key features include a new chapter presenting the basics of switched mode power supplies, thirty-one new examples, and twenty-three PS solved problems.


Master the fundamentals of Electronic Devices and Circuits with Schaum’s--the high-performance study guide. It will help you cut study time, hone problem-solving skills, and achieve your personal best on exams and projects!


DOWNLOAD
Password: www.elektrotekno.com



Saturday, August 7, 2010

Diode Applications: Clamping Circuits

A clamper is a circuit that is designed to shift a waveform above or below a dc reference voltage without altering the shape of the waveform. This results in a change in the dc average of the waveform.

Both of these statements are illustrated in the figure below. (The clamper has changed the dc average of the input waveform from 0 V to +5 V without altering its shape.)





A clamper with its input and (ideal) output waveforms.






Diode Applications: Clipping Circuits

Clippers or Diode Limiters are networks that employ diodes to "clip" away a portion of an input signal without distorting the remaining part of the applied waveform. For a clipping circuit at least two components—an ideal diode and resistor are required and sometimes a dc battery is also employed for fixing the clipping level. The diode acts as a closed switch when forward biased and an open switch when reverse biased. The input waveform can be clipped at different levels by simply changing the voltage of the battery and by interchanging the positions of the various elements.




Friday, August 6, 2010

Venn There, Done That

A Venn Diagram is a picture that is used to illustrate intersections, unions, and other operations on sets.

The Venn diagrams on two and three sets are illustrated above. The order-two diagram (left) consists of two intersecting circles, producing a total of four regions, A, B, A intersection B, and emptyset (the empty set, represented by none of the regions occupied). Here, A intersection Bdenotes the intersection of sets A and B.







Thursday, August 5, 2010

Philippine Republic Act 9292: ECE Law

The Republic Act 9292 or the "Electronics Engineering Act of 2004” is an amendment of the previous RA 5734.  The new law has brought about debates from ECE students and professionals from the Electronics industry.

There were few major changes made on the law, such as the new board exam rules and the classifications of e licensed to Electronics Engineers (ECT, ECE and PECE).

Electronics and Communications Engineering would now be called Electronics Engineering. However, Communications would still be part of the ECE curriculum. Also, you need to pass the licensure exam first before you can affix the ECE title on your name.





Sunday, August 1, 2010

PRC List of Allowed Calculators

Examinees are allowed to bring only one non-programmable calculators during the board exam.

Is your calculator allowed?

Here is the complete and updated list of allowed calculators to be used in Licensure Examinations, according to the Professional Regulation Commission.




Saturday, July 31, 2010

Applications of Differential Equations

What's the use of learning to solve differential equations if you don't know how to apply it to real-life situations?

Differential equations arise in many areas of science and technology. This lecture will show examples where differential equations can be widely applied to model natural phenomena, engineering systems and many other situations.

Newton's Law of Cooling





Friday, July 30, 2010

Wye-Delta Conversion

In many circuits, resistors are neither in series nor in parallel, so the rules for series or parallel circuits described in previous chapters cannot be applied. For these circuits, it may be necessary to convert from one circuit form to another to simplify the solution. Two typical circuit configurations that often have these difficulties are the wye (Y) and delta (D) circuits.

Wye to Delta





Wednesday, July 28, 2010

Vector Multiplication: Cross Product

We define the cross product of two three-dimensional vectors a and by the requirements:
  • × is a vector that is perpendicular to both and b.
  • ||× b|| is the area of the parallelogram spanned by and (i.e. the parallelogram whose adjacent sides are the vectors and b).
  • The direction of a×is determined by the right-hand rule. (This means that if we curl the fingers of the right hand from to b, then the thumb points in the direction of × b.)





Vector Multiplication: Dot Product

The multiplication of two vectors, is not uniquely defined, in the sense that there is a question as to whether the product will be a vector or not. For this reason there are two types of vector multiplication.
First, the scalar or dot product of two vectors, which results in a scalar.
And secondly, the vector or cross product of two vectors, which results in a vector.

In this tutorial we shall discuss only the scalar or dot product.





How to Use an Oscilloscope

The oscilloscope is a particularly useful item of test equipment that can be used for testing and fault-finding a variety of electronics circuits from logic circuits through analogue circuits to radio circuits. It is necessary to know how to use an oscilloscope properly to be able to make the best use of it. By knowing the basics of using an oscilloscope it is possible to fault find circuits more effectively and more swiftly as well as gaining a better understanding of how they the circuits work.

Source: Electronic-radio

Here's a video on how to use an oscilloscope:





Matlab 7.1

The MathWorks Release 14 with Service Pack 1 CD (R14SP1) is now available. This service pack release includes major quality updates to MATLAB 7, Simulink 6, and 66 other products, as well as two new products launched since Release 14. This release also provides a 64-bit version of the MATLAB and Simulink product families for Linux based on AMD64 and Intel EM64T processors.

For more information:
http://www.mathworks.com/fp14sp1

DOWNLOAD







Differential Equations for Dummies Ebook

Increase your equation-solving skills and tackle higher-dimension math concepts!

Here's a fun and easy way to understand and solve complex equations in Differential Equations. Many of the fundamental laws of physics, chemistry, biology, and economics can be formulated as differential equations. This plain-English guide explores the many applications of this mathematical tool and shows how differential equations can help us understand the world around us. Differential Equations For Dummies is the perfect companion for a college differential equations course and is an ideal supplemental resource for other calculus classes as well as science and engineering courses. It offers step-by-step techniques, practical tips, numerous exercises, and clear, concise examples to help readers improve their differential equation-solving skills and boost their test scores.

DOWNLOAD







Tuesday, July 27, 2010

Introduction to Electronics: Terminology

This article contains the terms that we will often encounter in the succeeding lessons in Electronics.

AC and DC

Electricity flows in two ways, either in alternating current (AC) or in direct current (DC). The difference between AC and DC has to do with the direction in which the electrons flow.

In DC, the electrons flow steadily in a single direction, or "forward." In AC, electrons keep switching directions, sometimes going "forwards" and then going "backwards." DC is the kind of electricity generated by a battery. On the other hand, the power that comes from wall outlets is AC.

AC can even be changed to DC by an adapter, such as that used to power the battery on a laptop.
Source: Wise Geek





Sunday, July 25, 2010

Contact Me


Questions? Comments? Suggestions? Violent Reactions? 

Contact Me!

Name
Email
Website
Message
Image Verification
Please enter the text from the image:
[ Refresh Image ] [ What's This? ]





About



About the Blog

This blog is a collection of lectures on subject areas related to Electronics Engineering. This blog aims to give students a better understanding of their lessons. Just like its title, this blog will try to make Electronics Engineering subjects easier and minimize the burden of students.

Disclaimer:
Lectures, videos, pictures and all other things contained herein are taken from books and various sources in the web. References will always be acknowledged in every article. All information provided in this blog are for educational purposes only. The owner of this site does not own the rights to these properties.

About the Blogger

The owner of this blog is residing in the Philippines and she is planning to stay even after she graduates. She is currently a third-year Electronics and Communications Engineering student at the University of Santo Tomas.

She started blogging in the year 2006 but took it seriously in September 2009 when she heard about bloggers who make six figures online. She created her personal blog, "Time to Shine" with the aim of making money through SEO. Information regarding whether she was successful or not... would not be discussed in this section. :)

Besides blogging, you can also find her studying, watching TV, reading a sci-fi/mystery novel, playing PSP and listening to her favorite song-of-the-day.

Her name is pronounced as 'klom'.

And lastly, she accepts donations. :)