Dynamo based electronics device charger

Mobile electronics devices has become as fundamental need in our life as air, water, roof & cloths are. Cisco report says number of smart phones, tablets, laptops and internet-capable phones will exceed number of humans in 2013. 

  

To charge up this large number of devices, a large amount of electricity is required, which will be non-providable in recent years. In another way for environmental issue we have to save energy to save the earth. Engineers have found a smart & conventional way to solve the problem.

A dynamo can be attached to a mobile device charger through which the device can be powered without a power supply from main. This device requires three basic things: a dynamo, an AC to DC converter & a battery to store the power.





There are some interesting ways to generate power through dynamo & charge your mobile:

• Attach the dynamo to your front wheel of a bicycle just like it was seen in 1970-1980.
• Now when dynamo runs with the cycle synchronously, it'll produce AC power(3V, 6Watts or 12V 6 watts).
• User can utilise the power in two ways--1)use a AC/DC converter unit and stores the power direct to a battery for later use of powe Or 2) using a simple AC/DC conversion unit utilise the DC output power(from conversion) to the mobile charger. 

 

• Using Hand tool  
• • Multiple use – Mobile charger
  • No batteries needed. No plug power charging
  • 1 minute cranking generates energy for 15 minutes of lighting
  • 1 minute cranking provides 15/3 minutes of standby/talk time for mobile phones.
  • Lasts for 1000 cranking cycles. (1 cranking cycle = 1 minute cranking)
   

• The dynamo may be attached to some other useful things like workout cycles in gym. It will save time and energy as well as recover your health issues. 

Economic prospects:

• Easy to install
• Reliable cost
• Energy & time saving
• Charge your phones anytime
• Small reduction of home electricity bills
•  Eco friendly

Nokia has come upwith a dynamo based bicycle charger in 2010. Charging times will obviously vary depending on the phone and cycling speeds, but Nokia says cycling for 20 minutes at 20 kmh (12.4 mph) will power up a Nokia 1202 for around one hour of talk time, or 74 hours of standby time. Charging starts when the cyclist hits walking speed, or around 6 km/h (3.7 mph), and at 12 km/h (7.4 mph) it will charge your phone as efficiently as a mains charger. And there’s no need to worry about going to fast and sending a power spike to your phone as the charger will cut out if you somehow exceed 50 km/h (31 mph). The kit consists of three components: a bottle dynamo, charger and a phone holder. Nokia’s Bicycle Charger Kit is compatible with any Nokia phone with a 2 mm charging interface and is easy to install.