Patent ID: 7755416

Claim:
A temperature-sensor circuit, comprising: a first transistor having a first emitter that is grounded, a first collector, and a first base; a first resistor having a first end and a second end, the first end being coupled with the first collector; a second resistor having a third end and a fourth end, the third end being coupled with the second end of the first resistor; a second transistor having a second emitter that is coupled with the first collector, a second collector, and a second base; a third resistor having a fifth end and a sixth end, the fifth end being coupled with the second collector; and a fourth resistor having a seventh end and an eighth end, the seventh end being coupled with the sixth end of the third resistor, wherein a junction of the first resistor and the second resistor is coupled with the first base, while a junction of the third resistor and the fourth resistor is coupled with the second base, and the fourth end of the second resistor is coupled with the eighth end of the fourth resistor.