This report explains step by step how the project was constructed. Bike- Volt consists in a voltage rectifier that takes AC from a dynamo (that works with the wheel spin of a bike) and rectifies it (DC) in order to supply voltage for cellphone charging.
-4 diodes (1N4007).
-1 capacitor 1000 uF at 35 volts.
-1 regulator (LM7805).
-1 capacitor 100 uF at 25 volts.
-1 capacitor 0.1 uF at 205 volts.
-1 female USB port.
In a protoboard, put four diodes in the same order as picture or build a diodes bridge.
Note: Protoboard with four 1N4007.
Connect two wires (cathode-cathode and anode-anode) with any of the possible nodes to make a parallel circuit.
Note: First wire, is to connect the positive terminal and the second terminal goes to ground.
Connect, in parallel, the capacitor of 1000uF at 35 volts.
Note: Wire the capacitor with the positive terminal in the first one and the negative terminal to the second one.
Connect the voltage regulator (LM7805). The first pin goes to Vcc, the second one goes to GND and the third one, goes to Vcc.
Note: Voltage regulator has three pines. The first one is the signal input, the second one is ground and the third is the rectified signal.
Connect, in parallel, the capacitor of 25 volts.
Note: Use the active nodes, to wire in parallel the capacitor.
Wire the capacitor (104), in parallel as the picture.
Note: Use the active nodes to wire in parallel the capacitor.
Connect Vcc and GND to the circuit and the entrance of the generator function to simulate or other device to turn on your circuit.
Note: The motor will simulate our dynamo or the AC source.
This is the final step. Connect a female usb in the terminals of the capacitor. There is going to give the 5 volts necessary to charge your phone or other device that requires 5 DC volts.
Note: Check out the datasheet of the female usb for an appropriate connection.
Step 9: URL for the demonstration of the circuit