This 3V LED Driver Circuit using IC LT1937 is small LED driver. It uses IC LT1937 which can run white LED from only 3V battery. IC take low voltage and boost up for LED. Circuit is good for mobile light, small torch, display backlight. It save power and give stable bright light. Block Diagram: See […]
Simple Counterfeit Money Detector Circuit
Simple Counterfeit Money Detector Circuit is like smart light. It uses UV light to show secret mark on real note. It also uses magnetic sensor to feel the special ink. Sometimes it uses IR light to see real money pattern. If no special thing is found then maybe the note is fake. But this tool […]
Simple Voltage Controlled Oscillator Circuit
Imagine a small device that make sound like whistle but we can turn one knob to make sound go high or low. This is same like what Simple Voltage Controlled Oscillator Circuit or VCO can do. It is an electronic thing that make signal again and again mostly like in square wave. The speed of […]
Simple Low Power Ozone Generator Circuit
Simple Low Power Ozone Generator Circuit use less power. It make ozone gas from air. It uses electric spark to change oxygen to ozone. Ozone help clean air and water and also kills the germs. But too much ozone is also not safe, it can be bad. Circuit Working: Parts List: Category Item Quantity Capacitors […]
SCR Based Solar Charger Controller Circuit
Lets say we have solar panel charging a battery, but we do not want to overcharge it! SCR Based Solar Charger Controller Circuit works like a smart switch. It uses special parts called SCRs to control how much power goes from solar panel to battery. It give just enough and not too much so battery […]
Capacitive Discharge Ignition (CDI) Circuit
Capacitive Discharge Ignition (CDI) Circuit is like small engine lighter. It keeps power like balloon and then release fast boom! Make strong spark to burn fuel. This type of circuit are used in bike, cutter and old car. Circuit Working: Parts List: Category Item Quantity Resistors 100Ω 1W 1 56Ω 1W 1 Capacitors PPC 105 […]