In this post I have elaborately explained how to build a 3 simple LED bulb using many LEDs in series and powering them through a capacitive power supply circuit. Warning: […]
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Designing Simple Power Supply Circuits
In this post I have explained how to design and build a simple power supply circuit right from the basic design to the reasonably sophisticated power supply having extended features. […]
How to Make a 220V to 110V Converter Circuit
In this post we will unravel a few homemade crude 220V to 110V converter circuits options which will enable to user the user use it for operating small gadgets with […]
5 Easy 1 Watt LED Driver Circuits
In this post I have explained about a few easy to build, compact 1 watt LED bulb circuits. The first circuit is SMPS based, the second design uses a capacitive […]
6 Useful DC Cell phone Charger Circuits Explained
A DC cell phone or mobile phone charger is a device which charges a cellphone from an available DC supply source. The device converts the unregulated DC source into a […]
High Voltage Transistors BUX 86 and BUX 87 – Specifications
In this article we are going to make an effort to understand the technical specs of the BJTs BUX86 and BUX87 which are high voltage complementary paired transistors. Introduction The […]