Patent ID: 7405594

Claim:
A current mode driver comprising: a first driver module configured to generate a differential output signal based on a differential input signal and a first control signal, the differential output signal having a voltage swing between a lower voltage level and an upper voltage level; and a feedback module coupled to the first driver module and configured to determine an intermediate voltage between the lower voltage level and the upper voltage level, the feedback module further configured to generate the first control signal based on the intermediate voltage for maintaining the voltage swing at a substantially constant voltage, determine a voltage difference between the intermediate voltage and a reference voltage, and generate a first bias voltage based on the voltage difference, the first control signal based on the voltage difference, the first control signal having the first bias voltage, the feedback module comprising: a sensor module coupled to the first driver module and configured to determine the intermediate voltage; a regulator module coupled to the sensor module and configured to generate the voltage difference; and a bias module coupled to the regulator module and the first driver module, the bias module configured to generate the first bias voltage based on the voltage difference.