Patent ID: 6466062
Filing Date: 2002-10-15
Classification: H03F

Abstract:
A system for driving a signal, comprising:a biasing circuit operable to receive an input signal and operable to produce a bias signal based on the input signal; a drive circuit comprising a sensor circuit including a transistor coupled to a first power supply, the drive circuit coupled to the biasing circuit and operable to receive the bias signal and to produce an amplified signal based on the bias signal; an output circuit comprising a transistor coupled to a second power supply, the output circuit coupled to the drive circuit and operable to receive the amplified signal and to produce an output signal based on the amplified signal; and an amplifier circuit, the amplifier circuit comprising: a first transistor with a collector coupled to the biasing circuit and to the output circuit, a base, and an emitter coupled to the first power supply; and a second transistor with a collector coupled to the sensor circuit, a base coupled to the collector and to the base of the first transistor, and an emitter coupled to a resistor.