Temperature sensor capable of controlling sensing temperature

Details Temperature sensor capable of controlling sensing temperature Temperature sensor capable of controlling sensing temperature

2006-01-24

2008-11-25

Verbitsky, Gail (Department: 2855)

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

C374S163000, C374S183000, C374S178000, C327S513000, C327S083000, C702S099000

Reexamination Certificate

active

07455452

ABSTRACT:
A temperature sensor includes a reference voltage generator, a sensing temperature controller and a first differential amplifier. The reference voltage generator generates a reference voltage having a first slope that varies in accordance with variations of a peripheral temperature, and a temperature sensing voltage having a second slope that varies in accordance with variations of the peripheral temperature. The sensing temperature controller controls an offset of an amplifier in response to a first control signal, and amplifies a voltage difference between the reference voltage and the temperature sensing voltage to generate a first differential output signal, and a second differential output signal having an inverted phase of the first differential output signal. The first differential amplifier amplifies a voltage difference between the first differential output signal and the second differential output signal to generate a sensor output signal.

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