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Electronic Ballast Circuit for Twin 40 Watt Fluorescent Tubes

In this article we learn how to build a simple yet extremely reliable electronic ballast circuit for driving or operating two 40 watt fluorescent tubes, with an active power correction. Courtesy: https://www.irf.com/technical-info/appnotes/an-995a.pdf Main Electrical Features of the IC International Rectifier Control ICs are monolithic power integrated circuits suitable for operating low-side and high-side MOSFETs or … Read moreElectronic Ballast Circuit for Twin 40 Watt Fluorescent Tubes

How Thyristors (SCR) Work – Tutorial

Basically an SCR ( Silicon Controlled Rectifier) which is also known by the name Thyristor works quite like a transistor. What  SCR Stands for The device gets its name (SCR) due to its multi layered semiconductor internal structure which refers to the “silicon” word in the beginning of its name. The second part of the … Read moreHow Thyristors (SCR) Work – Tutorial

PWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON

The post explains an effective PWM motor soft start circuit which can be used for enabling heavy motors with a soft start and thus prevent the equipment from drawing dangerous high currents. Why a Soft Start High wattage motors such pump motors or other forms of heavy industrial motors tend to draw huge current during … Read morePWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON

Zero Crossing Transformerless Power Supply Circuit

The post explains the importance of a zero crossing detection in capacitive transformerless power supplies in order to make it completely safe from the mains switch ON inrush surge currents. The idea was proposed by Mr. Francis. Technical Specifications I have been reading about the transformer less power supply articles on your site with great … Read moreZero Crossing Transformerless Power Supply Circuit

PWM Controlled Fan Dimmer Switch Circuit

In this article we look into a simple 220V mains PWM controlled fan or light dimmer circuit which does not require a microcontroller or costly triac drivers for the intended operations. Capacitive Phase Chopping All Ordinary types fan dimmers which rely on capacitive phase chopping technology have one drawback in common, these generate a lot … Read morePWM Controlled Fan Dimmer Switch Circuit

2 Simple Induction Heater Circuits – Hot Plate Cookers

In this post we learn 2 easy to build induction heater circuits which work with high frequency magnetic induction principles for generating substantial magnitude of heat over a small specified radius. The discussed induction cooker circuits are truly simple and uses just a few active and passive ordinary components for the required actions. Update: You may … Read more2 Simple Induction Heater Circuits – Hot Plate Cookers

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