We often need some low value resistors, less than 1 Ohm. Mostly as current sensing resistors in power electronics projects. You can’t measure less then 1 Ohm with cheap multimeters. […]
LM317 constant current source circuit design
A constant current source source can supply a fixed current to a load regardless of input voltage or load change. LM317 constant current source is one of the simplest design. […]
Free PCB design software – Ultimate list of 2018
There’s no short of free PCB design software to get your very own PCB ready. But which one should you choose ? Each of them have a fairly time consuming […]
Mobile charger circuit diagram, 100-220V AC
The market is flooded with cheap mobile charger circuit. Some of you may be looking for this type of charger circuit diagram and components list. These mobile chargers uses only […]
MOSFET based delay timer ciruit
Sometime we may need to turn off or turn on a device after some time. That’s when timer circuits are useful. Here we’re going to talk about simple MOSFET timer […]
Simple Piezo buzzer circuit with UM66T IC
A piezo buzzer circuit is quite popular to make feedback or alert sounds. You can find them in wristwatches, cars, medical devices, sirens, panic alarms and like so. In a previous […]
Simple magnetic buzzer circuit with UM66 IC
Electromagnetic buzzers are another type of popular buzzers, they’re operated at relatively lower voltage and are of smaller size than piezo buzzers. A magnetic buzzer circuit is usually found in […]
Simple Piezo Buzzer circuit diagram and project details
Piezo buzzers are one of the most common buzzers available around, they got their name from the piezoelectric material used as the active element. These buzzers are usually driven at […]