Semiconductor device, temperature sensor, and electronic...

Details Semiconductor device, temperature sensor, and electronic... Semiconductor device, temperature sensor, and electronic...

2007-02-13

2007-02-13

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S1540PB, C324S537000, C324S760020, C327S512000

Reexamination Certificate

active

10504856

ABSTRACT:
A temperature sensor including two transistors having different emitter current densities and performing temperature detection based on the fact that the difference in voltage between base and emitter changes with temperature. The temperature sensor is provided with a feedback circuit for controlling respective collector voltages and emitter currents such that the collector voltages of both transistors vary according to similar temperature characteristics.

REFERENCES:
patent: 4574205 (1986-03-01), Nagano
patent: 5094546 (1992-03-01), Tsuji
patent: 6084462 (2000-07-01), Barker
patent: 6509782 (2003-01-01), Chowdhury
patent: 6812722 (2004-11-01), Throngnumchai et al.
patent: 58-23578 (1983-05-01), None
patent: 4-31721 (1992-02-01), None

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