Patent ID: 6184670
Filing Date: 2001-02-06
Classification: G05F,Y10S

Abstract:
A temperature-related voltage generating circuit, comprising an input terminal receiving a control voltage independent of temperature; an output terminal delivering a temperature-related control voltage, said input and output terminals being connected together through at least an amplifier stage adapted to set an output reference voltage from a comparison of input voltages; a generator element generating a varying voltage with temperature connected between a ground voltage reference and a non-inverting input terminal of said amplifier stage, which has an output terminal adapted to deliver a multiple of the varying voltage with temperature to all inverting input terminal of a comparator stage; said comparator stage has an output terminal connected to the output terminal of the temperature-related voltage generating circuit and a non-inverting input terminal receiving said control voltage independent of temperature to evaluate a difference between the control voltage independent of temperature and said voltage being a multiple of the varying voltage with temperature and to output said temperature-related control voltage which has at room temperature a mean value which is independent of said temperature-related control voltage thermal differential and increases with temperature.