Patent ID: 7911260

Claim:
A current control circuit comprising: a first MOS transistor having a first source/drain coupled to an output of a power source, and a second source/drain of the first MOS transistor coupled to a first output node of the current control circuit; a second MOS transistor having a first source/drain coupled to the output of the power source, a second source/drain of the second MOS transistor coupled to a second output node of the current control circuit; and means for blocking flow of current from the first output node of the current control circuit to the second output node of the current control circuit when a potential at the first output node is higher than a potential at the output of the power source, wherein the means for blocking flow of current from the first output node of the current control circuit to the second output node of the current control circuit comprises a switch coupled between the output of the power source and the first output node of the current control circuit.