Free Energy is available all around us in a variety of different forms, it just needs to be appropriately harnessed and used. One such example is our modern streets and […]
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Mains 20 Watt Electronic Ballast Circuit
The post explains a simple 20 watt fluorescent ballast circuit using a single chip FAN7711 from Fairchild semiconductor. The proposed mains 220V operated, 20 watt fluorescent ballast circuit is built […]
High Voltage Transistor MJ11021(PNP) MJ11022 (NPN) Datasheet – Complementary Pair
MJ11021(PNP) MJ11022 (NPN) are high voltage complementary pair Darlington transistors suitable for all applications that involve high voltage high current such as in motor control, inverters, etc. Let’s understand the […]
12V, 5 Amp SMPS Battery Charger Circuit
In this article we study a simple flyback based converter design which is implemented as an SMPS 12V, 5amp battery charger power supply, without using a iron core transformer. How […]
How to Connect Car LED Downlight
A car LED downlight available in the market can be easily integrated to an existing car battery if its rating is identical to the battery’s voltage rating. Let’s learn more […]
220V SMPS Cell Phone Charger Circuit
The post explains how to make a simple, cheap yet extremely reliable smps based 220V/120V mains operated cell phone charger circuit. Why TNYxxx Tiny Switch is Used The TNY series […]