Patent ID: 7920026
Filing Date: 2011-04-05
Classification: H03F

Abstract:
1. An output driver system that is responsive to a differential input signal to generate a drive current for an output transistor, wherein the output driver system is arranged to dynamically boost the drive current, the output driver system comprising: a differential amplifier block that is arranged to generate a first current (I a first gain block that is arranged to generate a second current (I a threshold detector block that is arranged to generate a control signal in response to a comparison between the first magnitude of the first current (I a second gain block that is arranged to generate a third current (I a bias current block that is arranged to generate a nominal biasing current (IB) for the output transistor; a current mirror block that is arranged to generate a fourth current (I a summer block that is arranged to combine the nominal biasing current (IB), the second current (I