Temperature detection circuit

Details Temperature detection circuit Temperature detection circuit

1998-04-22

1999-11-09

Nguyen, Matthew

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

323907, G01K 700

Patent

active

059801069

ABSTRACT:
A temperature detection circuit that minimizes the influence of variations due to manufacturing process and other factors, and can be used at high temperatures near its maximum usable temperature. According to the present invention, a temperature detection circuit is provided which comprises: a first current source coupled to a detection node; a second current source coupled in series to the first current source, and coupled to the detection node, the second current source having a temperature coefficient different from that of the first current source; and a detector coupled to the detection node.

REFERENCES:
patent: 4574205 (1986-03-01), Nagano
patent: 5149199 (1992-09-01), Kinoshita et al.
patent: 5519354 (1996-05-01), Audy
patent: 5546041 (1996-08-01), Szajda
patent: 5781075 (1998-07-01), Bolton, Jr. et al.

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