JP4842213B2 - 半導体温度センサ - Google Patents
半導体温度センサ Download PDFInfo
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- JP4842213B2 JP4842213B2 JP2007152327A JP2007152327A JP4842213B2 JP 4842213 B2 JP4842213 B2 JP 4842213B2 JP 2007152327 A JP2007152327 A JP 2007152327A JP 2007152327 A JP2007152327 A JP 2007152327A JP 4842213 B2 JP4842213 B2 JP 4842213B2
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- temperature sensor
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Description
104 接続点
105 半導体温度センサ回路
Claims (4)
- 半導体温度センサにおいて、
正の温度係数を持つ出力電流を出力する第一電流源と、
負の温度係数を持つ出力電流を出力する第二電流源と、
所定条件が成立すると、非線形な温度係数を持つ出力電流を出力する第三電流源と、
前記第一電流源、前記第二電流源及び前記第三電流源の出力電流に基づき、出力電流を出力するカレントミラー回路と、前記カレントミラー回路の出力電流及び温度に基づき、出力電圧を出力するダーリントン回路と、を有する半導体温度センサ回路と、
を備えていることを特徴とする半導体温度センサ。 - 前記第三電流源は、前記第一電流源の出力電流が前記第二電流源の出力電流よりも多いと、多い分、出力電流を出力し、前記第一電流源の出力電流が前記第二電流源の出力電流以下であると、出力電流を出力しないことを特徴とする請求項1記載の半導体温度センサ。
- 前記第三電流源は、前記第二電流源の出力電流が前記第一電流源の出力電流よりも多いと、多い分、出力電流を出力し、前記第二電流源の出力電流が前記第一電流源の出力電流以下であると、出力電流を出力しないことを特徴とする請求項1記載の半導体温度センサ。
- 前記第一電流源は、負の温度特性を持つ出力電圧を出力し、
前記第二電流源は、前記第一電流源の出力電圧に基づき、負の温度係数を持つ出力電流を出力する、
ことを特徴とする請求項1記載の半導体温度センサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007152327A JP4842213B2 (ja) | 2007-06-08 | 2007-06-08 | 半導体温度センサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007152327A JP4842213B2 (ja) | 2007-06-08 | 2007-06-08 | 半導体温度センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008304346A JP2008304346A (ja) | 2008-12-18 |
JP4842213B2 true JP4842213B2 (ja) | 2011-12-21 |
Family
ID=40233200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007152327A Expired - Fee Related JP4842213B2 (ja) | 2007-06-08 | 2007-06-08 | 半導体温度センサ |
Country Status (1)
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JP (1) | JP4842213B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11320320B2 (en) * | 2018-07-25 | 2022-05-03 | Texas Instruments Incorporated | Temperature sensor circuit for relative thermal sensing |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61233330A (ja) * | 1985-04-09 | 1986-10-17 | Nec Corp | 温度センサ回路 |
JP3128013B2 (ja) * | 1992-03-02 | 2001-01-29 | セイコーインスツルメンツ株式会社 | 半導体温度センサ |
-
2007
- 2007-06-08 JP JP2007152327A patent/JP4842213B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11320320B2 (en) * | 2018-07-25 | 2022-05-03 | Texas Instruments Incorporated | Temperature sensor circuit for relative thermal sensing |
Also Published As
Publication number | Publication date |
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JP2008304346A (ja) | 2008-12-18 |
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