This very simple two transistor circuit will ensure that your home electrical and appliances are never affected by abnormal voltage fluctuations. This circuit designed to cut off the 220V supply […]
Customizable Fixed Voltage Regulator Circuit using Opamp
If you are wondering how you would be able to make a fixed voltage regulator circuit which could be customized to any desired fixed level regardless of the input, then […]
Simple Voltage Controlled Oscillator using IC 555
A neat little voltage controlled oscillator circuit could be designed and applied for a given purpose using a single IC 555 and a few other passive components, let’s learn about […]
Non-Contact Voltage Detector Circuits Using Transistors and IC
In this post we are going to discuss a few non-contact voltage detector/tester circuits for checking the presence of active mains live wire. We will be understanding what non-contact voltage […]
High Voltage Emergency Mains Cut-OFF Circuit
In this post we learn how to make a simple high voltage emergency mains cut-off circuit for intentionally blowing a fuse during a catastrophic high voltage tendency, making sure that […]
110V, 220V Voltage Regulator Circuit
The discussed 110V, 220V voltage regulator circuit can be used for controlling or adjusting all high voltage level inputs such as 110V or 220V simply by altering a couple of resistor […]