Showing posts from 2014

How to Make a Simple Battery Charger With Bridge Rectifier Circuit?

Here you can read how to make a simple charger or adapter for charging 6 volt rechargeable battery. This charger works with a bridge rectifier circuit and a step down transformer. You can use this device as a AC adapter or charger for batteries. By selecting proper transformers and rectifier circuit it is possible to change the output of the charger. Thus you can design a charger circuit according to your purpose.

What is a Step Down Transformer?
Transformer is a device used to step up or step down the input voltage. A step down transformer reduces the input voltage and provide a lower voltage at output. A transformer works on the principle of mutual induction.

What is a Rectifier Circuit?
The output of a step down transformer is an AC voltage. But we need DC of the same voltage. A rectifier circuit is used to convert the AC voltage to DC. There are three main types of rectifier circuits.

1. Half wave rectifier
2. Full wave rectifier
3. Bridge rectifies

We are going to make battery cha…

Advantages and Disadvantages of Wind Energy

Experts say wind energy can't be world's largest renewable energy source. They point out that there would be a saturation point (do'nt scare, its far away) above which wind power farms cannot harness wind energy. Even though wind energy can be a promising renewable energy source for future. They you must be aware about advantages and disadvantages (pros and cons) of wind energy. This article is written for you.
 Advantages of Wind Energy

Wind energy is Efficient
Newer technologies are making the extraction of wind energy much more efficient. Dual systems that combine another renewable energy with wind energy can harness wind power more effectively, and they can provide continuous power output. 

Wind energy is Clean; Environment Friendly
Wind turbines doesn't emit any harmful or green house gases. Like conventional energy sources such as coal, petroleum energy, wind energy does not pollute the air. So Wind power is a Green energy source.
Wind Energy is Sustainable
Wind is actu…

Advantages and Disadvantages of Solar Power

Solar power is the largest among renewable energy sources. But, we don't have an efficient and cost effective technology to harness solar radiation. Now a days, experts are more confident than before and say that they can manipulate a cheap and efficient method to harness solar energy. Recently Massachusetts institute researchers had came up with a new idea to use old car batteries to make cheap solar panels. We can find more and more promising news updates about solar power from various research groups. In such a circumstances, you should be aware about the advantages and disadvantages of solar power. Advantages of Solar power You are in the right place! Here we have a giant list of advantages of solar power for you.
Solar power Reduces Potential for global warming
Use of traditional energy sources such as petroleum, coal liberates excess amount of oxides of carbon which leads to Green house effect. Global warming threatens the survival of human society, as well as the survival of c…

Advantages and Disadvantages of Geothermal energy

Geothermal areas are some places on Earth where high pressure steam is exhausted from the Earth crust without any external heat supply. It is due to the boiling of water in under water reservoirs due to the nearness of hot magma. Energy generated from such hotspot is termed as Geothermal energy. It is independent from climate and seasonal changes. Read more about advantages and disadvantages of geothermal energy
Advantages of Geothermal Energy.
1. Significant Cost Saving
Geothermal energy generally involves low running costs since it saves 80% costs over fossil fuels and no fuel is used to generate the power. Since, no fuel is require so costs for purchasing, transporting and cleaning up plants is quite low
2. Environmentally Friendly
Geothermal energy is generally considered environmentally friendly.There are a few polluting aspects of harnessing geothermal energy, but these are minor compared to the pollution associated with conventional fuel sources (e.g. coal, fossil fuels)
3. Consta…