https://ahmelkholy.github.io/en/feed.xml 2026-11-04T12:19:32+02:00 Ahmed M. Elkholy https://ahmelkholy.github.io/articles/2026/11/dab/ 2026-11-02T00:00:00+02:00 2026-11-02T00:00:00+02:00

Follow a dual active bridge from its switching voltages to inductor current and transferred power, with original paper figures, an SPS example, and practical control and design tradeoffs.

https://ahmelkholy.github.io/en/articles/2026/11/latexvsword/ 2026-11-01T00:00:00+02:00 2026-11-01T00:00:00+02:00

I began to understand the usefulness of LaTeX when the text was next to the code and results. Practical comparison with Word and example for generating a table of calculations.

https://ahmelkholy.github.io/articles/2026/10/statcom/ 2026-10-31T00:00:00+02:00 2026-10-31T00:00:00+02:00

How STATCOMs work: construction, converter topologies, reactive power, SVC comparison, DSTATCOM, control algorithms, system studies, applications, and research.

https://ahmelkholy.github.io/en/articles/2026/10/ultimate-focus-timer/ 2026-10-30T00:00:00+02:00 2026-10-30T00:00:00+02:00

A tool I created to organize my work sessions: a clear task, a timer, optional music, and a log I return to. Explaining the idea, functions, and method of operation from the source.

https://ahmelkholy.github.io/en/articles/2026/10/vim/ 2026-10-29T00:00:00+02:00 2026-10-29T00:00:00+02:00

From playing the piano to typing on the keyboard: How do Vim gestures help me navigate, edit, and stay focused on what I'm typing?

https://ahmelkholy.github.io/en/articles/2026/10/git-notes/ 2026-10-28T00:00:00+02:00 2026-10-28T00:00:00+02:00

From doubting the utility of Git to using it as project memory: An electrical engineer's experience with code organization, results and articles, and the meaning of commit and push.

https://ahmelkholy.github.io/articles/2024/05/transformer-connections/ 2024-05-02T00:00:00+03:00 2026-11-04T00:00:00+02:00

In the world of electrical engineering, understanding the connection and phase displacement symbols for three-phase transformers is crucial. These symbols, defined by the IEC 60076-1-2011 standard, provide a concise way to describe the configuration of a transformer.

https://ahmelkholy.github.io/posts/2023/08/blog-post-7/ 2023-08-22T00:00:00+03:00 2026-11-04T00:00:00+02:00

Line impedance and load conditions jointly determine the voltage at the receiving end of a feeder. Evaluating them together is more informative than discussing load unbalance without describing the network that supplies it.

https://ahmelkholy.github.io/en/posts/2023/08/blog-post-ideas-1/ 2023-08-14T00:00:00+03:00 2023-08-14T00:00:00+03:00

When a student came to me, this is not to belittle him, but this is the truth at the time. At the time, I was a teaching assistant at the Faculty of Engineering at my university, which I did not like at first, but which eventually became my home. Back to the beginning. This student had gotten the lowest grade possible. I don’t remember now exactly what that grade was, but I remember when he came to me and left after getting the final grade on his midterm exams. This incident occurred because the corrector at that time did not want to waste time literally interpreting the hieroglyphs that the student had left on a white sheet of paper, which would require Champollion, not a teaching assistant, who had more than a hundred sheets of paper to finish correcting them.

https://ahmelkholy.github.io/posts/2023/08/blog-post-4/ 2023-08-13T00:00:00+03:00 2026-11-04T00:00:00+02:00

A website can serve HTML prepared before a request, generate HTML when a request arrives, or combine both approaches. The useful distinction is when the page is rendered and what data it needs, rather than whether the site has interactive buttons.

https://ahmelkholy.github.io/posts/2023/08/blog-post-3/ 2023-08-10T00:00:00+03:00 2026-11-04T00:00:00+02:00

Unequal loading of the three phases changes both currents and voltages in a distribution feeder. A phase-by-phase model helps separate the effects of load asymmetry, feeder impedance and neutral-current paths before choosing a compensation device.

https://ahmelkholy.github.io/en/posts/2023/08/blog-post-2/ 2023-08-09T00:00:00+03:00 2023-08-09T00:00:00+03:00

This is a personal reading into Jamal Hamdan’s thoughts and their relationship to my questions about education and engineering. It is not a documentary study of a specific book, and I do not attribute the following statements to it as verbatim quotations.

https://ahmelkholy.github.io/en/posts/2023/08/blog-post-1/ 2023-08-07T00:00:00+03:00 2026-11-04T00:00:00+02:00

Green hydrogen is hydrogen produced by electrolyzing water using electricity from renewable sources. It can help reduce emissions in some industries, but its benefit depends on the source of electricity and the efficiency of production, transportation, and end use.