Electronics

Buck Converter Working

Figure 1(a) shows a buck converter, the most basic topology for converters. A buck converter always steps the voltage down. A transistor, either a bipolar junction or a power FET, is used as the switching device. A rectangular signal out of the pulse-width modulator closes and opens the switch. A comparator controls the duty cycle […]

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Electrical Timer & Timer Charts

This article covers the following items about electrical timers:  The five sections of timers  Nine timer operating principles  Five common modes of timer operations  Timer charts  Sections of Electrical Timer Figure 1 provides a block diagram that shows the five functional sections of a timer. Timers can be divided into the following sections:  Power or

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Zener Diode Characteristics

When a high reverse-biased voltage applied to a diode may create a high reverse current, which can generate excessive heat and cause a diode to break down. The applied reverse voltage at which the breakdown occurs is called the breakdown voltage, or peak reverse voltage. A special diode called a zener diode is connected to

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Radar Working Principle

Hi friends, In this article, I am discussing the radar working principle, block diagram and applications. So keep reading. A radar which stands for “radio detection and ranging” is a method of detecting the presence and position of objects by reflected radio waves. The detected object is called target and the distance to the target is determined

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Transistor as a Switch

A transistor can also act as a switch and can turn ON and OFF power in an electrical load. The action of the transistor, while using a transistor as a switch is explained below: Switching Action of a Transistor To understand the switching action of a transistor in detail, consider the collector characteristics for a

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