System and method for remote temperature sensing

An apparatus, comprising:

• a diode circuit comprising a transistor;
• a current injection unit coupled to the transistor;
• and
• a measurement controller coupled to the current injection unit and the diode circuit, wherein the measurement controller is adapted to:
• perform a first ΔVbe measurement of a first temperature of the diode circuit;
• subsequently, perform a first Vbe measurement of a second temperature of the diode circuit;
• calculate a temperature difference between the second temperature and the first temperature;
• if the temperature difference is not greater than a predetermined amount, subsequently perform a second Vbe measurement of a third temperature of the diode circuit;
• and
• if the temperature difference is greater than the predetermined amount, perform a second ΔVbe measurement of the second temperature of the diode circuit.

A system, comprising:

• a subsystem;
• a diode circuit comprising a transistor thermally coupled to the subsystem;
• a measurement system electrically coupled to the diode circuit;
• and
• a controller communicatively coupled to the measurement system,
• wherein the measurement system is adapted to:
• perform a first ΔVbe measurement of a first temperature of the diode circuit;
• communicate to the controller a first measured temperature based upon the first ΔVbe measurement;
• subsequently, perform a first Vbe measurement of a second temperature of the diode circuit;
• calculate a temperature difference between the second temperature and the first temperature;
• if the temperature difference is not greater than a predetermined amount, subsequently perform a second Vbe measurement of a third temperature of the diode circuit;
• and
• if the temperature difference is greater than the predetermined amount, perform a second ΔVbe measurement of the second temperature of the diode circuit and communicate to the controller a second measured temperature based upon the second ΔVbe measurement.