power electronics
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Radiation-Hardened MOSFET that can Withstand Extreme Space Environments and Extend Reliability of Power Circuitry Microchip Technology has released radiation-hardened 250V, 0.21 Ohm Rds(on), metal–oxide–semiconductor field-effect transistor (MOSFET), M6 MRH25N12U3 that can meet the requirements of space applications to withstand extreme particle interactions and solar and electromagnetic events. Suitable for commercial aerospace and defense space applications, the radiation-… |
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Understanding the Difference Between BJT and MOSFET and How to Select the Right One for Your Designs If you are exploring the world of electronics, and you want to know more about the Transistors and MOSFETs for your upcoming brilliant project, you are at the right place. In this article, we will discuss the basics of BJTs, Transistors, and MOSFETs. Before semiconductors (particularly transistors), the only devices available for signal amplification and switching were… |
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Zero-Crossing Detector Circuit A zero-crossing detector circuit is a useful application of an op-amp as a comparator. This electronic circuit precisely identifies when an AC waveform transitions through zero voltage, tracking the changes in the sine waveform from positive to negative or vice versa while it crosses zero voltage. It can also be used as a square wave generator. They have many… |
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MPPT Solar Charge Controller using LT3652 Almost every Solar based system has a Battery associated with it which has to be charged from solar energy and then the energy from the battery will be used to drive the loads. There are multiple choices available for charging a lithium battery, we have also built a simple Lithium battery charging circuit previously. But to charge a battery with a solar panel, the most… |
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How to Design a Push Pull Converter – Basic Theory, Construction, and Demonstration When it comes to working with power electronics, a DC-DC converter topology becomes very crucial for practical designs. There are mainly two types of major DC-DC conversion topologies available in power electronics, namely, the switching converter and the Linear converter. Now from the law of conservation of energy, we know that energy cannot be… |
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Designing a High Power, High Efficiency Boost Converter using TL494 In this article, we are going to design a TL494 Boost converter, and calculate and test a high-efficiency boost converter circuit based on the popular TL494 IC, which has a minimum supply voltage of 7V and a maximum of 40V, and as we are using the IRFP250 MOSFET as a switch, this circuit can handle a maximum current of 19Amps, theoretically (Limited by Inductor… |
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AC Phase Angle Control for Light Dimmers and Motor Speed Control using 555 Timer and PWM Signal Home automation systems are increasingly gaining popularity day by day, and nowadays it's become easy to turn on & off certain appliances by using some simple control mechanism like a relay or a switch, we have previously built many Arduino based Home Automation Projects using relays. But there are many home appliances that require control of this AC power rather than… |
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All About Transformer Protection and Transformer Protection Circuits Transformer protection is crucial as transformers are one of the most critical and expensive components of any distribution system. It is an enclosed static device usually drenched in oil, and hence, faults occurring in it are limited. But the effect of a rare fault can be hazardous for the transformer, and the long lead time for repair and replacement of transformers makes… |
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230V AC LED Driver Circuit for Powering 2.5Watts LED Light AC LED driver circuits are overly popular due to the advancement of High current white LEDs. We already made a Transformerless LED driver circuit previously, but in that circuit, we used a dedicated LED driver IC like LNK304 to generate 13.6V 150mA of output current to power LEDs. But in this tutorial, we will not use any dedicated driver ICs, but we will make a 2.5 Watt AC… |
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230V AC Mains Over Voltage Protection Circuit Most of the power supply these days are very reliable due to advancement in technology and better design preferences, but there is always a chance of failure due to a manufacturing defect or it can be the main switching transistor or the MOSFET going bad. Also, there is a possibility that it may fail due to overvoltage at the input, though protection devices like Metal Oxide… |
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Simple Battery Level Indicator using Op-amp In the modern world, we use batteries in almost every electronic gadget from your handheld mobile phone, digital thermometer, smartwatch to Electric Vehicles, aeroplanes, satellites, and even Robotic Rovers used on Mars whose battery lasted around 700 sols (Martian days). It is safe to say without the invention of these electrochemical storage devices a.k.a. Batteries, the… |
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Pure Sine Wave Inverter Using Arduino Inverter circuits are often needed where it is not possible to get AC supply from the grid. An inverter circuit is used to convert DC power to AC power and it can be divided into two types that is Pure Sine Wave Inverters or Modified Square Wave Inverters. These pure sine wave inverters are very expensive, where the modified square wave inverters are inexpensive. Learn more… |
