This is my first time on this website,
I have a bottle dynamo connected to my bicycle which produces a voltage of 6 to 25 volts depending on how fast I'm going.
The dynamo is supposedly 5.5 watts but I haven't measured this.
I want to turn this into a constant voltage of 12 volts so I can charge a 12 volt rechargeable battery, and use the battery to power some speakers or my mobile phone.
Any ideas on what I could stick in between the battery and the dynamo would be much appreciated.
I'm not too good with electronics, I know capacitors, resistors and diodes but that's pretty much it. thanks
I have a bottle dynamo connected to my bicycle which produces a voltage of 6 to 25 volts depending on how fast I'm going.
The dynamo is supposedly 5.5 watts but I haven't measured this.
I want to turn this into a constant voltage of 12 volts so I can charge a 12 volt rechargeable battery, and use the battery to power some speakers or my mobile phone.
Any ideas on what I could stick in between the battery and the dynamo would be much appreciated.
I'm not too good with electronics, I know capacitors, resistors and diodes but that's pretty much it. thanks