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Theory Vs. Reality: First Comes the Assumpton Then It All Goes to Hell

This is a post where I could think of a lot of very funny names and titles, but when it came down to the actually writing one I chose the term I most often use in professional life. “First comes the Assumption Then It all Goes to Hell”. Very often the calculations and number crunching

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Drawing the Schematic for the Desulfator in Kicad.

The Desulfator Schematic in KiCad

HAPPY NEW YEAR! Usually this time of year I think about what I accomplished in the last year and also where I want to go in the next one. I have been so busy this season that I really have not given it as much thought as usual. However,

Continue reading Drawing the Schematic for the Desulfator in Kicad.

The 555 Timer I.C. Datasheet Explained – Part 2

The specifics of what is talked about in the video.

This is the 2nd post and video describing the 555 Timer I.C. The first post was “The 555 Timer I.C. Datasheet Explained – Part 1“. I finished up all of the important information about the chip and external components in this video. The Desulfator

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The 555 Timer I.C. Datasheet Explained – Part 1

LM555 Block Diagram

The heart of the Desulfator is based around a 555 timer. The 555 Timer I.C. is a very old and proven circuit and I can remember it being used in the 1970’s when I was an electronic technician. This the first of probably three posts talking about the 555 timer datasheet.

Continue reading The 555 Timer I.C. Datasheet Explained – Part 1

Introduction to Bipolar Junction Transistors.

Bipolar Junction Transistors

It has always been my goal on this site to present information to help to understand every project I attempt. I am currently working on the Desulfator. Although I am primarily taking the design of someone else and building a printed circuit for it, both you and I need to know

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The Op-Amp Differentiator.

The Basic Op-Amp Differentiator.

A common insult is the term “get real”. The way we have been learning all of these electronic circuits is to start with the ideal and then add one by one the real life problems of real components. Real life is going to smack us in the head very quickly

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The op-amp integrator.

An Op-Amp Integrator

Now that we know about how capacitors perform and we have learned about the calculus operation called integration, we are finally able to go back to the basic op-amp circuits and talk about the one of the two remaining circuits. It has not been all that long ago that microprocessors where

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Good ole boy Calculus

Our Car with no air friction

Sometimes I get stuck. I have turned this blog into somewhere between a technician type of discussion and full-blown engineering. Many very good technicians I know are very good a fundamental understanding and have almost a magical sense of understanding a problem. Those same guys give you a

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Understanding why cars reach a maximum speed.

Generic Feedback Block Diagram

We still have two basic op-amp circuits to talk about. The problem is these two circuits have names associated with math terms. As usual I am going to do everything backwards. Math is normally taught before a reason is given to understand the math. But no, I can’t do it

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An Op-Amp Datasheet part 2 – AC Values.

Non-Inverting Op-amp Amplifier

Several months ago I introduced op-amps to readers of this site with “The Non-Inverting Op-Amp Amplifier“. At that time we had only talked about D.C. Electricity. We started with an “ideal Op-Amp” and then I brought us back to reality and created a video about an op-amp datasheet. Since that time

Continue reading An Op-Amp Datasheet part 2 – AC Values.