Patent ID: 8035354

Claim:
A battery charge circuit configuration for operating a circuitry and simultaneously charging an associated battery separated from said circuitry comprising: a first switching means, said first switching means being passed through by a first current which is charging said battery; a first current sensor means, for detecting said first current; a second current sensor means, for detecting a second current, said second current supplying said circuitry; a first control unit, for controlling said first switching means, wherein said first control unit comprises: a first input, said first input being connected to said first current sensor means in order to have a current level identical to said first current; a second input, said second input being connected to said second current sensor means in order to have a current level identical to said second current; a third input, said third input being connected to a node to which said battery is connected in order to have a voltage level identical to a voltage level across said battery; and a fourth input, said fourth input having a current level which is a replica of said current level of said first input.