Method and apparatus for boosting power in a bicycle electrical device
AssigneeShimano Inc.
InventorSatoshi Kitamura
Life of this patent
Estimating the term…
Abstract
A bicycle electric power device includes a dynamo, an electrical device, a power source and a switch. The electrical device is electrically connected to the dynamo. The power source is electrically connected to the dynamo in parallel with the electrical device and configured to chargeably connect to the dynamo. The switch is connected in series with the power source and configured to controllably connect the power source to the dynamo with the dynamo producing no power of its own such that with the switch closed the dynamo is charged by the power source and with the switch opened the dynamo provides boosted voltage to the bicycle electrical device.
Claims14
A bicycle electric power device comprising:
- a bicycle dynamo;
- a bicycle electrical device electrically connected to the dynamo;
- a power source electrically connected to the dynamo in parallel with the electrical device and configured to chargeably connect to the dynamo;
- and
- a switch connected in series with the power source and configured to controllably connect the power source to the dynamo with the dynamo producing no power of its own such that with the switch closed the dynamo is charged by the power source and with the switch opened the dynamo provides boosted voltage to the bicycle electrical device.
A method for boosting power in a bicycle electrical device comprising:
- providing a source of direct current to a dynamo;
- charging the dynamo generating a magnetic field;
- disconnecting the source of direct current from the dynamo;
- and
- powering an electrical device solely on direct current from the decaying magnetic field of the charged dynamo.
Dependencies are inferred from the claim text.