power electronics
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Impedance Matching Filter Circuit Design – LC, L and PI Filters In the previous article, we discussed the basics of impedance matching and how to use an impedance matching transformer. Apart from using an impedance matching transformer, designers can also use Impedance Filter circuits at the output of an RF amplifier which can double up as a filtering circuit and also as an impedance matching circuit. There are many types of filter… |
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Introduction to Impedance Matching and How to use an Impedance Matching Transformer for your Design If you are an RF Design Engineer or anyone who has worked with Wireless Radios, the term “Impedance Matching” should have struck you more than once. The term is crucial because it directly affects the transmission power and thus the range of our Radio modules. This article aims to help you understand what Impedance Matching is from the basics and will also help you to design… |
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AC Current Measurement using Current Transformer and Arduino A current transformer is a type of instrumental transformer specially designed to transform alternating current in its secondary winding, and the amount of current produced is directly proportional to the current in the primary winding. This type of current transformer is designed to non-invisibly measure current from the high voltage subsystem or where a high amount of… |
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PCB Layout Design Guidelines for Switch Mode Power Supply Circuits Switching power supply is a widely used power supply topology in power electronics. Whether it can be a complicated CNC Machine or a compact electronic device, as long as the device is connected to some sort of power supply an SMPS circuit is always mandatory. Improper or faulty Power supply unit could lead to a big failure of the product irrespective of how well-designed… |
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High Power High Efficiency Buck Converter Circuit using TL494 A buck converter circuit (step-down converter) is a DC-to-DC switching converter that steps down voltage while maintaining a constant power balance. The main feature of a buck converter is efficiency, which means that with a buck converter on board, we can expect extended battery life, reduced heat, smaller size, and improved efficiency. We previously made a few simple Buck… |
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Design Techniques for Reducing EMI in SMPS Circuits In my previous article on EMI, we examined how the intentional/unintentional nature of EMI sources and how they affect the performance of other Electrical/Electronic devices (victims) around them. The article was followed by another one on Electro Magnetic Compatibility (EMC) which provided insights into the dangers of EMI and offered some context to how poor EMI… |
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Buck Boost Regulator using XL6009 with Adjustable 3.3V to 12V Output Voltage Buck-Boost regulator is made using two different topologies, as the name suggests, it consists of both buck and boost topology. We already know that Buck Regulator Topology provides a lower magnitude of output voltage than the input voltage, while a Boost Regulator Topology provides a higher magnitude of output voltage than the provided input voltage. We have already built a… |
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PWM Inverter Circuit using TL494 An inverter is a circuit that converts Direct Current (DC) to Alternating Current (AC). A PWM inverter is a type of circuit that uses modified square waves to simulate the effects of Alternating Current (AC), which is suitable for powering most of your household appliances. I say most-of because there generally exist two types of inverters, the first type is the so-called a… |
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Designing a True RMS to DC Converter using IC AD736 A True-RMS or TRMS is a type of converter which converts RMS value to equivalent DC value. Here in this tutorial, we will learn about true RMS to DC converter, how it works and how measurement methods can affect displayed results. What is RMS?RMS is the abbreviation of Root Mean Square. By definition, for alternating electric current, the RMS value… |
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Switched Capacitor Voltage Converter A switched capacitor voltage converter performs energy transfer and voltage conversion using capacitors. There are mainly two types of switched capacitor voltage converters, first is the voltage inverter circuit and the second is the voltage doubler circuit. These types of circuits are commonly known as charge pump circuits. In this project, we will… |
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Current Divider Circuits Explained with Formula and Practical Hardware When designing an electronic circuit, there are lots of situations when a circuit requires different values of voltage and current sources. For example, when setting the preset voltage for an Op-Amp, it is very common to use a potential divider circuit to obtain the required voltage values. But what if we need a specific value of current? Similar to the voltage divider,… |
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Understanding Dot Convention in Transformers From large power stations to compact SMPS circuits, transformers can be found almost everywhere. Though there are many types of transformers and their exact working differs based on the application, the basic working of the Transformer remains the same. When examining transformer circuit schematics, you'll notice "dot" symbols placed on transformer windings. These dots… |
