Engineering Projects

“Dry cell is not rechargeable”, this is what people think. This concept can be proven wrong by this particular project ‘Dry cell charger‘. Now here is another electronics trick to make the concept of ‘Battery Saver’ come true. The project battery sever not only charges dry cell but also enhances battery life by saving energy. The project ‘Battery saver circuit’ is considered very useful project for those, who run their appliance solely based on dry cell. Circuit Description Batter Saver Circuit:- The circuit is so simple that anyone can understand,…

The project shown here is of simple touch switch circuit using two transistor which is used to control various types of electrical appliances like electrical bulb, fan, door bell etc. The complete circuit is build around two general purpose transistors, a relay and a touch plate. The length of wire connected between touch plate and base of transistor T1 must be short as possible, where size of touch plate must not exceed the size of 1 rupee coin. Transistor T1 is used as signal amplifier where T2 is a relay…

We all are fed with the fact that dry cell is not rechargeable and it has no use once it is discharged during use. And, people simply throw it away and buy a new one. Because of this, people are forced to invest quite a lot on battery. In order to overcome this problem, here we have presented a new project ‘Dry Cell Charger’, which has been tested and verified practically. Using the circuit dry cell charger one can charge dry cell 6 to 8 times which evidently contributes to…