Method and device for supplying electric energy power to an appliance
AssigneeFrance Telecom
InventorDidier Marquet
Life of this patent
Estimating the term…
Abstract
The invention concerns a portable device for electric power supply comprising: connection means (8) for connecting an appliance (1) to be powered; and a power supply circuit (6; 16) supplying in output a supply voltage for the appliance when the circuit is selectively connected to a mains supply or to a low-voltage electric power source. It may also comprise a battery (10). In that case, the circuit (6, 16) can charge the power storage means when the circuit is connected to an appropriate electric power source, the connection means ensuring power supply to the appliance (1) from the power storage means (10).
Claims16
A portable device for supplying electric energy, comprising:
- a connection means for allowing connection to an appliance having at least one rechargeable supply battery;
- a supply circuit delivering an output supply voltage;
- and
- a rechargeable electric energy storage means, the supply circuit ultra-rapidly charging the energy storage means when the supply circuit is connected to an appropriate source of electric energy;
- wherein the connection means allows the appliance to be supplied and the at least one rechargeable supply battery to be charged from the energy storage means when the appliance is connected to the connection means;
- wherein when the supply circuit is connected to a source of electric energy having a voltage below a predetermined threshold, the supply circuit supplies the connection means from the source of electric energy, but does not charge the energy storage means;
- and
- wherein when the supply circuit is connected to the source of electric energy having the voltage above or equal to said predetermined threshold, the supply circuit supplies the connection means and charges the energy storage means from the source of electric energy.
Dependencies are inferred from the claim text.