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 […]
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Variable Voltage, Current Power Supply Circuit Using Transistor 2N3055
In this post we learn how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components. It includes variable voltage and variable current feature, […]
GSM Based Cell Phone Remote Control Switch Circuit
This circuit will allow you to control any electrical gadget from any part of the world through your cellphone remotely, that too without spending a penny for the individual commands. […]
Making LED Lamp using Cellphone Charger
A plug-in type powerful wall LED lamp can be built at home by using a few white LEDs and by powering it through a cell phone charger. The power from […]
Make a 100 Watt LED Floodlight Constant Current Driver
You might have probably come across these fantastic high power, high efficiency LED modules and wondered how do you make these? Here we learn how to make a 100 watt […]
Simple 4 Watt LED Driver Circuit Using IC 338
This 4 watt LED driver is a device that will illuminate a 4 watt LED safely through a constant current circuit using the IC LM338. The IC LM338 as we […]