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Power Supply Circuits

Battery Level Indicator Circuit using IC MN13811

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

This tutorial teaches us about Battery Level Indicator Circuit using IC MN1381, as it shows when battery is low and indicates us to recharge, so use MN13811 IC and 2 transistors as they work together to turn ON the LED when battery is low. Also, the circuit is good for small 3V battery devices, as […]

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits

Advanced Ni-Cd Battery Fast Charging Circuit

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

Many devices use Ni-Cd batteries because they provide good energy storage and can be recharged; however, normal charging is slow and inefficient and it can reduce battery life. To fix this, we design an Advanced Ni-Cd Battery Fast Charging Circuit using the MAX712 chip, also this charger provides fast, safe and reliable charging for Ni-Cd […]

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits

Battery Charger Circuit using IC LM317

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

Battery Charger Circuit using IC LM317 is an useful project in electronics, it charges rechargeable batteries well. The main part is the LM317 IC, a voltage regulator used in power supplies and battery charging, it also works well for charging 12V lead-acid batteries. This post show how LM317 IC charger works, what calculations to use […]

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits, Voltage Regulator

Battery Charger Circuit using IC L200

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

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

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits, Voltage Regulator

Simple Battery Charging Indicator Circuit using IC LM393

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

Simple Battery Charging Indicator Circuit using IC LM393 shows if battery is charging or not; it helps stop overcharge and through this charging becomes safe and better. Also, main part is LM393 comparator IC and it turns ON LED to show charging; further, circuit is easy and cheap and is good for checking 12V lead-acid […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits

Ni-Cd Battery Charger Circuit using Transistors

Last updated on 16 June 2026 by Admin-Lavi Leave a Comment

Nickel Cadmium (Ni-Cd) batteries are very common for rechargeable use, as they give good power and work long time with many charges. To charge them right we need a special charger made for Ni-Cd and mostly it is for 12V Ni-Cd battery pack. Hence, this article for Ni-Cd Battery Charger Circuit using Transistors shows simple […]

Filed Under: Battery Charger Circuits, DIY Projects, Power Supply Circuits, Transistor Circuits

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