Despite its simplicity, the Battery Low Voltage Alarm circuit has a very important function. It forewarns you of approaching battery failure so that you may run to the store and get replacement cells before your equipment stops functioning entirely. Because of its compact size and low current need, it may be integrated into the devices […]
Battery
Build this Mosquito Bat without Battery
This simple homemade mosquito swatter bat neither requires a circuit nor a battery for the operation. The entire design works using a single high voltage capacitor and through quick charging from mains AC socket. (Designed by me) Introduction In a few of my earlier posts I have discussed how to make mosquito zappers using the […]
Emergency Incubator Heater Circuit with Battery Charger
In this post I have explained a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. Arya. Technical Specifications I’ve read all your good article, but can you help me to design an Linear PSU that provide 12 […]
Solar Battery Charger using LM339 Comparator
This small LM339 based solar battery charger setup is designed to optimize the charging of your battery using any solar panel while protecting it from accidental overloads. Considering the extended battery life it allows you to achieve, it is an investment that quickly pays for itself. Circuit Description Our setup is nothing more than a […]
How to Illuminate 100 LEDs from 6 Volt Battery
In this article I have explained an innovative way of driving more than a hundred white LEDs from a 6 volt battery. The circuit utilizes the IC 555 for driving a step up transformer, whose output is finally used for illuminating the LEDs. A special PWM configuration makes the circuit much power efficient. Main Stages […]
Solar, Wind, Hybrid Battery Charger Circuits
In this article I have explained a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this blog. Technical Specifications Good after noon sir am designing a ” Solar and Wind energy harvest regulator circuit” which has two inputs […]