blog Archives - G K Agrawal

What is the Snubber circuit and its applications in power electronics

G K Agrawal / blog, Power electronics / 03/06/2024

The snubber circuit finds application in power electronics and switching devices. We will discuss in this post, what is snubber circuit, and what are the applications of a snubber circuit. What is a snubber circuit? The snubber circuit is a series connection of a resistor and a capacitor. This resistor-capacitor combination is connected, generally in […]

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IGBT vs Thyristor – difference

G K Agrawal / blog, Electrical, Power electronics / 08/04/2024

We will discuss the difference between IGBT and thyristor in this post. There are many differences between IGBT and thyristor power devices. But the main difference is related to switching ON and OFF of the IGBT and thyristor.

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What is a tilting electric train concept?

G K Agrawal / blog, Electric train, Electrical / 05/01/2024

Tilting train concept during train turning

In this article, we discuss what is the tilting train and how it works. Nowadays, many high-speed type trains like bullet trains are tilting type trains. This tilting makes it possible for the train to take turns at high speed as follows:

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Why and what factors make share stock prices change

G K Agrawal / blog, Miscellaneous / 05/01/2024

We will discuss What factors make share stock price change, some go up or come down. Why do some share stock prices go up and come down daily?

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Ungrounded electrical system – advantages and disadvantages

G K Agrawal / AC supply, blog, Electrical, Power system / 16/11/2023

We use the ungrounded electrical system in many places. We will discuss in this post, what is ungrounded electrical system, the differences from a grounded system, its advantages and disadvantages and its applications.

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9 Differences between open-loop and closed-loop control

G K Agrawal / blog, Electrical, Power system / 29/10/2023

difference between open and closed-loop control

In this article, I explain the nine differences between open-loop control and closed-loop control systems. The hybrid control system (open-loop and closed-loop control together) is also explained.

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