In this article, we explain a simple and easy 3V Battery-Operated Lamp Flasher Circuit that flashes a lamp using only a 3V power supply. Usually, low voltage flashing circuits give low output current, but however, this circuit gives high current output and therefore, it can drive a small lamp easily. The LM3909 IC forms the […]
Battery Charger Circuits
One LED Low Voltage Flasher Circuit using IC LM3909
A low voltage indicator is essential for battery operated circuits because the battery can discharge at any time; therefore, a simple indicator helps monitor the battery voltage. Therefore, this One LED Low Voltage Flasher Circuit using the LM3909 IC uses only one LED, requires a minimal number of components and operates at a very low […]
12V Battery Low Voltage Alarm Circuit
Batteries play an important role in many electronic systems; however, their voltage drops over time, and if it falls too low, the battery may become damaged. So low voltage indication needed. Therefore, this 12 V Battery Low Voltage Alarm Circuit protects the battery by providing visual and audible alerts; also its simple, low-cost design uses […]
Low Voltage Alert Circuit for 9V Battery
Battery power plays an important role in electronic circuits, but the battery voltage can drop without warning; as a result, devices may stop working suddenly, making a low-voltage alarm necessary. This Low Voltage Alert Circuit for 9V Battery gives warning when a 9V battery goes low, as it uses LM339 comparator IC and also uses […]
Automatic Solar LED Light Circuit
Solar power is free energy and it comes from the sun, it is clean and is renewable, because of this solar lights are very popular today; also this is Automatic Solar LED Light Circuit and it turns ON light at night, and it turns OFF light at day automatically. This circuit requires no switch, making […]
6V To 12V Lead Acid Battery Charger Circuit
To begin with, this article for 6V To12V Lead Acid Battery Charger Circuit explains about a dual voltage battery charger circuit. Lead acid battery needs correct voltage for proper charging, so this charger circuit gives correct charging for both batteries; here, LM317 IC is the main part of the circuit and it gives stable charging […]