JP4385811B2 - 定電流回路 - Google Patents
定電流回路 Download PDFInfo
- Publication number
- JP4385811B2 JP4385811B2 JP2004086821A JP2004086821A JP4385811B2 JP 4385811 B2 JP4385811 B2 JP 4385811B2 JP 2004086821 A JP2004086821 A JP 2004086821A JP 2004086821 A JP2004086821 A JP 2004086821A JP 4385811 B2 JP4385811 B2 JP 4385811B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- temperature
- field effect
- constant current
- 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.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/205—Substrate bias-voltage generators
Description
30…バンドギャップ定電圧源
40…D/A変換回路(バイアス回路)
50…負荷
Q1、Q2…電界効果トランジスタ
R1、R2…分圧抵抗(半導体抵抗)
Ra、Rb、Rc、Rd…ラダー抵抗(半導体抵抗)
T1 …低温(第1温度、第2温度)
T2 …常温(第1温度、第2温度)
T3 …高温(第1温度、第2温度)
ID …ドレイン電流
VDS…ドレイン−ソース間電圧
VGS…ゲート−ソース間電圧
VGS’…ゲート−ソース間電圧(交点に対応するゲート−ソース間電圧)
Vcc1 、Vcc2 …電源電圧
α…交点
Claims (1)
- 電界効果トランジスタのドレインに接続される負荷に対しドレイン−ソース間電圧VDSの変動にかかわらず前記負荷に一定のドレイン電流ID を供給可能にする、前記電界効果トランジスタのバイアス電圧が設定される定電流回路であって、
前記電界効果トランジスタのゲート−ソース間電圧VGSに対するドレイン電流ID のID −VGS特性において、任意の第1温度におけるID −VGS特性カーブと前記第1温度とは異なる任意の第2温度におけるID −VGS特性カーブとの交点に対応するゲート−ソース間電圧VGS’を前記バイアス電圧に設定するバイアス回路と、
ほぼ同一の温度係数を有するとともに互いに熱伝達可能に前記バイアス回路を構成する複数の半導体抵抗と
を備え、
前記複数の半導体抵抗は、前記バイアス電圧を発生させるD/A変換回路を構成し、
前記バイアス電圧は、バンドギャップ定電圧源により供給される電圧に基づいて設定されることを特徴とする定電流回路。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004086821A JP4385811B2 (ja) | 2004-03-24 | 2004-03-24 | 定電流回路 |
US11/053,945 US7199647B2 (en) | 2004-03-24 | 2005-02-10 | Constant current circuit |
DE102005011392A DE102005011392A1 (de) | 2004-03-24 | 2005-03-11 | Konstantstromschaltung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004086821A JP4385811B2 (ja) | 2004-03-24 | 2004-03-24 | 定電流回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005275701A JP2005275701A (ja) | 2005-10-06 |
JP4385811B2 true JP4385811B2 (ja) | 2009-12-16 |
Family
ID=34983120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004086821A Expired - Fee Related JP4385811B2 (ja) | 2004-03-24 | 2004-03-24 | 定電流回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7199647B2 (ja) |
JP (1) | JP4385811B2 (ja) |
DE (1) | DE102005011392A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200820571A (en) * | 2006-10-27 | 2008-05-01 | Fitipower Integrated Tech Inc | Driving device |
US7486135B2 (en) * | 2007-05-29 | 2009-02-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Configurable, variable gain LNA for multi-band RF receiver |
JP2011015259A (ja) * | 2009-07-03 | 2011-01-20 | Renesas Electronics Corp | 半導体集積回路装置およびその試験方法 |
CN102799721A (zh) * | 2012-07-04 | 2012-11-28 | 上海宏力半导体制造有限公司 | 半导体器件温度系数建模方法以及电路设计方法 |
CN106055044B (zh) * | 2016-05-30 | 2019-06-07 | 维沃移动通信有限公司 | 一种兼容识别不同型号传感器的方法和终端 |
US10158356B2 (en) * | 2016-09-06 | 2018-12-18 | Infineon Technologies Austria Ag | Switch device |
US11585860B2 (en) | 2020-05-13 | 2023-02-21 | Nuvoton Technology Corporation Japan | Semiconductor device |
CN112702032A (zh) * | 2020-12-10 | 2021-04-23 | 深圳市智慧海洋科技有限公司 | 单电源运放偏置电路 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5887608A (ja) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | 基準電圧源 |
JPS60151729A (ja) * | 1984-01-18 | 1985-08-09 | Nec Corp | 直流電圧発生回路 |
JPS6153804A (ja) * | 1984-08-23 | 1986-03-17 | Nec Corp | 基準電圧発生回路 |
JPS61164822A (ja) * | 1985-01-17 | 1986-07-25 | デユプイ エンジニアリング (ソシエテ アノニム) | 贈答用紙箱の製造方法 |
US5440305A (en) * | 1992-08-31 | 1995-08-08 | Crystal Semiconductor Corporation | Method and apparatus for calibration of a monolithic voltage reference |
US5568084A (en) * | 1994-12-16 | 1996-10-22 | Sgs-Thomson Microelectronics, Inc. | Circuit for providing a compensated bias voltage |
JP2917877B2 (ja) * | 1995-10-11 | 1999-07-12 | 日本電気株式会社 | 基準電流発生回路 |
US5977832A (en) * | 1997-12-18 | 1999-11-02 | Philips Electronics North America Corporation | Method of biasing an MOS IC to operate at the zero temperature coefficient point |
JPH11213664A (ja) * | 1998-01-23 | 1999-08-06 | Mitsubishi Electric Corp | 半導体集積回路装置 |
US6496057B2 (en) * | 2000-08-10 | 2002-12-17 | Sanyo Electric Co., Ltd. | Constant current generation circuit, constant voltage generation circuit, constant voltage/constant current generation circuit, and amplification circuit |
JP3619793B2 (ja) * | 2000-08-10 | 2005-02-16 | 三洋電機株式会社 | 定電流発生回路、定電圧発生回路、定電圧定電流発生回路および増幅回路 |
JP2002196831A (ja) * | 2000-12-25 | 2002-07-12 | Matsushita Electric Ind Co Ltd | 定電流回路、差動増幅回路及び半導体集積回路 |
-
2004
- 2004-03-24 JP JP2004086821A patent/JP4385811B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-10 US US11/053,945 patent/US7199647B2/en not_active Expired - Fee Related
- 2005-03-11 DE DE102005011392A patent/DE102005011392A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US20050212588A1 (en) | 2005-09-29 |
JP2005275701A (ja) | 2005-10-06 |
DE102005011392A1 (de) | 2005-10-13 |
US7199647B2 (en) | 2007-04-03 |
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