JPS56105682A - Sensor for temperature - Google Patents
Sensor for temperatureInfo
- Publication number
- JPS56105682A JPS56105682A JP778480A JP778480A JPS56105682A JP S56105682 A JPS56105682 A JP S56105682A JP 778480 A JP778480 A JP 778480A JP 778480 A JP778480 A JP 778480A JP S56105682 A JPS56105682 A JP S56105682A
- Authority
- JP
- Japan
- Prior art keywords
- output
- temperature
- temperature detecting
- wave
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
Abstract
PURPOSE:To obtain a small and cheap sensor having an excellent temperature detecting characteristic by forming an MOS type IC by incorporating an FET element, the thickness of a gate oxide film thereof is made 1,000Angstrom or more in order to increase the sensitivity of temperature detection. CONSTITUTION:A temperature detecting section 4 building in an MOSFET element 5 and a load resistor R is connected to a saw-tooth-wave oscillator 3 oscillating saw- tooth-wave signals eS having a fixed period. In such constitution, the thickness of a gate oxide film of an MOSFET element 5 functioning as a temperature detecting element is made 1,000Angstrom or thicker, and the sensitivity of temperature detection is previously increased. An output voltage wave-form in the case when the output of the element 5 is converted to an L level from an H level is shaped by means of a wave-form shaping circuit 6, and signals eS in the case when the output of the element 5 falls to the L level are added to a sampling circuit 7. The output is changed into a digital temperature detecting value by means of an A/D converter 8, supplied to a temperature converting circuit 10 and put out as BCD output or binary output. Thus, the element 5, a temperature coefficient thereof exceeds 10mV/ deg.C, is used, and a sensor having high sensitivity is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP778480A JPS56105682A (en) | 1980-01-28 | 1980-01-28 | Sensor for temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP778480A JPS56105682A (en) | 1980-01-28 | 1980-01-28 | Sensor for temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56105682A true JPS56105682A (en) | 1981-08-22 |
Family
ID=11675292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP778480A Pending JPS56105682A (en) | 1980-01-28 | 1980-01-28 | Sensor for temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56105682A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383616U (en) * | 1986-11-19 | 1988-06-01 | ||
| US10795396B2 (en) | 2018-09-24 | 2020-10-06 | Stmicroelectronics Sa | Electronic device providing a temperature sensor or a current source delivering a temperature independent current |
| US11867570B2 (en) | 2020-03-06 | 2024-01-09 | Stmicroelectronics Sa | Thermal sensor circuit |
-
1980
- 1980-01-28 JP JP778480A patent/JPS56105682A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383616U (en) * | 1986-11-19 | 1988-06-01 | ||
| US10795396B2 (en) | 2018-09-24 | 2020-10-06 | Stmicroelectronics Sa | Electronic device providing a temperature sensor or a current source delivering a temperature independent current |
| US11867570B2 (en) | 2020-03-06 | 2024-01-09 | Stmicroelectronics Sa | Thermal sensor circuit |
| US11920989B2 (en) | 2020-03-06 | 2024-03-05 | Stmicroelectronics Sa | Thermal sensor circuit |
| US11971313B2 (en) | 2020-03-06 | 2024-04-30 | Stmicroelectronics Sa | Thermal sensor circuit |
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