We can charge supercapacitor safe and proper with simple and easy to make Supercapacitor Charger Circuit. Battery does not charges or drain fast, but supercapacitor can do fast charge and drain, because supercapacitor hold less energy than battery. Also, circuit uses voltage regulator chip like LM317 to control voltage to supercapacitor and regulator checks supercapacitor […]
DIY Projects
Mains AC Power Supply Failure Buzzer(Alarm) Circuit
Mains AC Power Supply Failure Buzzer(Alarm) Circuit is small device; it makes sound (buzzer) when AC power goes OFF. Furthermore, it helps us to know power gone and is useful if we have important machine to know power goes at night; also it uses one switch called relay. When power is on, the relay operates […]
Simple Motor Powered Emergency Flashlight Circuit
This Simple Motor Powered Emergency Flashlight Circuit provides an easy way to create emergency lighting; it uses a motor as a generator to produce electrical power. Also, power goes to LED for light and charges the supercapacitor and then it turns motor to charge. Circuit Working: Parts List: Components Values Quantity Resistors 220Ω 1/4 watt […]
Motion Detector Circuit using IC 555
This easy Motion Detector Circuit uses IC 555 to find human from far, as circuit have two parts: Transmitter: IC 555 work like astable multivibrator and it make square wave signal and this signal goes out through IR sensor (infrared). Receiver: Phototransistor see IR beam and if someone moves and block the beam then phototransistor […]
12V SMPS Driver Circuit for LED Strip
12V SMPS driver change big AC power from 110V or 220V into small 12V DC, also circuit is good for LED strip light. Furthermore, in this DIY project we can make cheap and strong LED driver, which can power full 12V LED strip with 100 or 200 LEDs. Important points to follow: Here, Circuit uses […]
Logic NAND Gate Circuit using Transistors
Logic NAND Gate Circuit using Transistors is very important in digital logic, as it work opposite of AND gate. Output is HIGH when any input is LOW. People call the NAND gate a universal gate because it can implement all other basic logic gates, including AND, OR, and NOT. Truth Table for Logic NAND Gate: […]