This circuit is a tiny power manager for your LED! It takes a higher voltage like from a battery and steps it down to the perfect 3V your LED needs. The special chip, the LT1937 is super efficient and keeps the power flowing smoothly. This ensures your LED gets just the right amount of juice […]
LED and Lamps
Simple LED Constant Current Circuit
Just think a water hose filling a bucket. A normal circuit would be like setting the water pressure voltage and hoping the bucket fills perfectly. But with LEDs, a special circuit acts like a fancy nozzle that keeps the water flow current steady, even if the pressure changes a bit. This ensures the LED lights […]
Simple Solar LED Lantern Circuit
A Solar LED Lantern Circuit is a circuit that uses solar energy to power LEDs in a lantern or light fixture. It typically consists of a solar panel a rechargeable battery, LEDs and various electronic components such as diodes, resistors and transistors. Circuit Working: Parts List: Type Value Quantity Note Resistors 15Ω 1 1/2W 1.5Ω […]
Simple 220V LED Night Lamp Circuit
This circuit design lets a night light operate directly from your homes standard electrical outlet typically 220V AC. It achieves this by either using a transformer or special capacitors to bring the voltage down to a safe level for the LED lamp. Circuit Working: Parts List: Type Value Quantity Note Resistors 10Ω 1 1W 560k […]
Simple 220V Lamp Flasher Circuit using IC 555
This circuit uses a special chip IC 555 to turn a regular light bulb into a flashing party light. The chip creates a special on off signal that gets sent to a switch transistor or triac, which controls the power to the bulb. By turning the power on and off rapidly, the circuit makes the […]
Simple LED Tester Circuit
This circuit is like a tiny doctor for your LEDs. It helps you check if your fancy light emitting diodes are working properly. Imagine a little setup with a battery, some special resistors like tiny traffic lights for electricity, and clips for the LED. You connect the LED and the circuit checks if it lights […]