Title:
LINEAR TEMPERATURE SENSOR
Document Type and Number:
WIPO Patent Application WO2000037892
Kind Code:
A3
Abstract:
A linear temperature sensor that incorporates passive bipolar semiconductor devices (D1, D2, D3, D4, C1) and is capable of high accuracy over a very wide temperature range. The passive bipolar semiconductor device splits a voltage drop between the bipolar semiconductor and a resistor (R1) such that the voltage drop varies approximately linearly in negative dependence on temperature. Optionally, the linearity may be improved by providing sufficient current to produce a self-heating effect which compensates for non-linear deviations in performance at low temperatures.
Inventors:
GOODWIN SHAUN (US)
Application Number:
PCT/US1999/030093
Publication Date:
March 01, 2001
Filing Date:
December 16, 1999
Export Citation:
Assignee:
AIRPAX CORP LLC (US)
GOODWIN SHAUN (US)
GOODWIN SHAUN (US)
International Classes:
G01K1/20; H01L31/04; H01L31/058; H01L35/00; H01L37/00; G01D; (IPC1-7): H01L31/058; H01L35/00; H01L37/00
Foreign References:
| US5545914A | 1996-08-13 | |||
| US5838187A | 1998-11-17 | |||
| GB2191292A | 1987-12-09 |
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