matthewspeed
New member
For Christmas my son received a Green energy snap electronics set. http://www.elenco.com/scg125.htm
The set include a hand crank dc motor that can be used to charge the rechargeable battery. It also includes a dc motor with a fan blade for generating current with wind power. I built the hand crank circuit and then replaced the hand crank with the fan. If I power the fan with my wife's hair dryer (I turn the heat off so it is just blowing air) it charges the battery. If I set it in front of the floor fan in my bedroom the fan turns but not fast enough to charge the battery. Is it possible to configure a circuit such that the generator producing about 2.6V can be used to charge the 3.6V battery?
(BTW...about 20 years ago I had a freshman EE network theory class. I understand that a 2.6V generator cannot charge a 3.6V battery on its own. I am trying to figure out if some use of capacitors or other components can make this work at all.)
The set include a hand crank dc motor that can be used to charge the rechargeable battery. It also includes a dc motor with a fan blade for generating current with wind power. I built the hand crank circuit and then replaced the hand crank with the fan. If I power the fan with my wife's hair dryer (I turn the heat off so it is just blowing air) it charges the battery. If I set it in front of the floor fan in my bedroom the fan turns but not fast enough to charge the battery. Is it possible to configure a circuit such that the generator producing about 2.6V can be used to charge the 3.6V battery?
(BTW...about 20 years ago I had a freshman EE network theory class. I understand that a 2.6V generator cannot charge a 3.6V battery on its own. I am trying to figure out if some use of capacitors or other components can make this work at all.)