Patent ID: 6985028
Filing Date: 2006-01-10
Classification: G05F

Abstract:
1. A current generator providing an output current comprising: an input mirror having a first current source, a second current source, a first transistor, and a second transistor, the first current source being a variable input current source, the first transistor outputting a first mirror current source of the variable current source limited by the first current source, and the second transistor outputting a second mirror current source of the variable current source limited by the second current source; a first current limiter having a third current source and one or more transistors, the first current limiter coupled to the first transistor of the input mirror and having a third transistor outputting a first current output substantially equivalent to the variable input current source limited by the third current source; a second current limiter having a fourth current source and one or more transistors, the second current limiter coupled to the second transistor of the input mirror and having a fourth transistor outputting a second current substantially equivalent to the first current source limited by the second current source; and a node coupled to the first current limiter and the second current limiter wherein the output current is the sum of the first current and the second current.