Battery Voltage Level Indicator Circuit using 3 LED is small circuit to show battery voltage with 3 LED One LED for low, one for medium and one for full charge. It helps to know battery is good or need charging. This circuit is easy to make and can be used for 12V battery but with […]
How to Make a Simple LED Bulb Circuit
LED lights are become very popular these days. People also call them LED bulbs or solid state lights. These lights use very less power like only 0.5 to 3 watts so they save lot of electricity bill. Before 10 years these bulbs were not so bright. But still we can make our own easy LED […]
Li-ion Battery Charger Circuit using LM317 IC
This Li-ion Battery Charger Circuit using LM317 IC is small and easy charger circuit which is for Li-ion battery. It uses one chip called LM317 and we can make this at home with few parts. It is good for learning how battery charging works. Also will talk about how this battery charges best and how […]
How to Build a Two LED Temperature Indicator Circuit
This article show How to Build a Two LED Temperature Indicator Circuit which is easy and cool project. This circuit is used for many thing like: To check water shower when it is not too hot so no damage can happen Be sure computer parts, amplifier, heater and even car water tank do not get […]
High Voltage Fence Charger Circuit
This post shows how to make High Voltage Fence Charger Circuit. It does not cost much and is safe to stop wild animals and keep our pets inside fence. It cheap and easy to fix and is better than normal fence. WARNING: Electric fence can kill if wrongly made. Only do with adult help. Circuit […]
500 Watt Inverter Circuit
This article tell how to make 500 Watt Inverter Circuit that work good by using one smart chip name IR2153. This chip help to change 12V car battery to 230V like home electricity. This chip is better than old one because: So inverter work more strong and does not break easily. To make this 500 […]