초록

A curvature correction circuit for generating an output current of the general form T ln T. When applied as a curvature correction circuit to bandgap references, the circuit precisely offsets the inherent parabolic non-linearity of such circuits.

대표청구항 ▼

A circuit for generating a current which is a known function of temperature, comprising a pair of first and second bipolar transistors having their bases connected across a resistance of selected value R, for providing an output current of selected form across said resistance in response to collecto

A circuit for generating a current which is a known function of temperature, comprising a pair of first and second bipolar transistors having their bases connected across a resistance of selected value R, for providing an output current of selected form across said resistance in response to collector currents applied to the respective transistors, said collector currents being I1, directly proportional to temperature, and I2, whereby said output current across the resistance is of the form [Figure] where K=Boltzmann\s constant T=Kelvin temperature q=electronic charge A1=emitter area of first transistor A2=emitter area of second transistor; and means for supplying said collector currents I1 and I2.