Circuit Ideas for You

This tutorial teaches us about Battery Level Indicator Circuit using IC MN13811 It shows when battery is low and indicates us to recharge. Use MN13811 IC and 2 transistors as they work together to turn ON the LED when battery is low. The circuit is good for small 3V battery devices. It is for very […]

Ni-Cd batteries are used in many devices and they have high energy and can recharge. But normal charging is slow and is not good, so it can harm battery life. To fix this Advanced Ni-Cd Battery Fast Charging Circuit using MAX712 chip is made. This charger charges fast, safe and works well for Ni-Cd. This […]

Battery Charger Circuit using IC LM317 is an useful project in electronics. It charges rechargeable batteries well. Main part is LM317 IC which is a voltage regulator. It is used in power supply and battery charging. It is good for 12V lead-acid battery charging. This post show how LM317 IC charger works, what calculations to […]

This article talks about a very useful and easy Battery Charger Circuit using IC L200. It helps battery work good and live long. This circuit show reverse polarity using LEDs. IC L200 is 5 pin voltage regulator which is very flexible and good for charging battery. IC have many features like current limit, heat shutdown […]

Simple lead acid battery charger is very useful and it charges battery properly and make battery live longer. These batteries are used in cars, backup power and solar storage. This article for Lead Acid Battery Charger Circuit using IC LM350 show how charger circuit work using LM350 IC. LM350 IC give steady and adjustable voltage […]

Automatic Night Lamp Circuit using Battery Power works on battery and saves energy. It turns ON in dark and OFF in light. This circuit is good for bedroom, hallway, stairs and gives light at night. It uses two 1.5V batteries and has 7555 timer chip, LDR as light sensor and LED as light. Circuit Working: […]