Think of flashing lights in a line but with LEDs and not with bulbs! This LED Chaser Circuit using Transistors makes LEDs light up one by one like running. It uses small switches called transistors to control LEDs. This circuit is good for beginners and is fun way to learn how transistors work! Circuit Working: […]
LED and Lamps
Home » LED and Lamps »
Simple CFL Driver Circuit
CFL bulb need special helper circuit to turn ON and glow bright. This Simple CFL Driver Circuit change home electricity into power CFL can use. CFL bulb uses little mercury vapor to make invisible light. Then it hits special powder to make light we see. Circuit Working: Parts List: Category Item Quantity Resistors (All resistors […]
3V LED Driver Circuit using IC LT1937
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 LED Constant Current Circuit
Just think like water pipe filling bucket. Normal circuit is like set water pressure voltage and hope the bucket fills good. But with LED this Simple LED Constant Current Circuit is like smart nozzle. It keep water flow current same even if pressure changes a little. This way LED light up nice and live longer. […]
Solar LED Lantern Circuit
Solar LED Lantern Circuit is small setup using sun power to give light with LED. It have solar panel through which the battery charges again to LED lights and some small parts like diode, resistor and transistor. Circuit Working: Parts List: Type Value Quantity Resistors 15Ω 1/2W 1 1.5Ω 1/2W 1 1k 1/4W 2 Semiconductors […]
Simple 220V LED Night Lamp Circuit
This Simple 220V LED Night Lamp Circuit design make night light work straight from home power plug which is usually 220V AC. It does this by using small transformer or special capacitor to drop voltage low so LED lamp can work safe. Circuit Working: Parts List: Type Value Quantity Resistors 10Ω 1W 1 560k 1/2W […]