Reference voltage source, temperature sensor, temperature threshold detectors, chip and corresponding system

摘要

A polarization and starting module (100,112) and two current sources are fed from a supply (VCC). One current source (101) produces a current (14) which is proportional to temperature and a second current source (102) produces a current (15) which is inversely proportional to temperature. The currents are summated in a resistor (R3) to produce a reference voltage (VREF) Independent claims are also included for the following : 1) Temperature sensor and/or temperature threshold detector which uses the reference voltage generator circuit but has a summated current which does vary with temperature 2) Integrated circuit which includes the reference voltage generator 3) Electronic equipment which uses the reference voltage circuit