IT1229678B - Generatore di corrente variabile indipendente dalla temperatura. - Google Patents
Generatore di corrente variabile indipendente dalla temperatura.Info
- Publication number
- IT1229678B IT1229678B IT8920281A IT2028189A IT1229678B IT 1229678 B IT1229678 B IT 1229678B IT 8920281 A IT8920281 A IT 8920281A IT 2028189 A IT2028189 A IT 2028189A IT 1229678 B IT1229678 B IT 1229678B
- Authority
- IT
- Italy
- Prior art keywords
- current generator
- independent variable
- variable current
- temperature independent
- temperature
- Prior art date
Links
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
- G05F3/22—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
- G05F3/222—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage
- G05F3/225—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage producing a current or voltage as a predetermined function of the temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S323/00—Electricity: power supply or regulation systems
- Y10S323/907—Temperature compensation of semiconductor
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
- Amplifiers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8920281A IT1229678B (it) | 1989-04-27 | 1989-04-27 | Generatore di corrente variabile indipendente dalla temperatura. |
US07/509,435 US4967139A (en) | 1989-04-27 | 1990-04-16 | Temperature-independent variable-current source |
DE69017068T DE69017068T2 (de) | 1989-04-27 | 1990-04-17 | Temperaturunabhängige veränderliche Stromquelle. |
EP90107222A EP0394805B1 (en) | 1989-04-27 | 1990-04-17 | Temperature-independent variable-current source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8920281A IT1229678B (it) | 1989-04-27 | 1989-04-27 | Generatore di corrente variabile indipendente dalla temperatura. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8920281A0 IT8920281A0 (it) | 1989-04-27 |
IT1229678B true IT1229678B (it) | 1991-09-06 |
Family
ID=11165402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8920281A IT1229678B (it) | 1989-04-27 | 1989-04-27 | Generatore di corrente variabile indipendente dalla temperatura. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4967139A (it) |
EP (1) | EP0394805B1 (it) |
DE (1) | DE69017068T2 (it) |
IT (1) | IT1229678B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1245237B (it) * | 1991-03-18 | 1994-09-13 | Sgs Thomson Microelectronics | Generatore di tensione di riferimento variabile con la temperatura con deriva termica prestabilita e funzione lineare della tensione di alimentazione |
US5204958A (en) * | 1991-06-27 | 1993-04-20 | Digital Equipment Corporation | System and method for efficiently indexing and storing a large database with high data insertion frequency |
US5883507A (en) * | 1997-05-09 | 1999-03-16 | Stmicroelectronics, Inc. | Low power temperature compensated, current source and associated method |
US6097179A (en) * | 1999-03-08 | 2000-08-01 | Texas Instruments Incorporated | Temperature compensating compact voltage regulator for integrated circuit device |
US20040080305A1 (en) * | 2002-10-29 | 2004-04-29 | Yu-Tong Lin | Power on detect circuit |
JP4464418B2 (ja) * | 2007-03-20 | 2010-05-19 | 株式会社日立製作所 | ランプ波形発生回路及びそれを用いた回路パターン検査装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3717777A (en) * | 1971-03-24 | 1973-02-20 | Motorola Inc | Digital to analog converter including improved reference current source |
DE2408755C3 (de) * | 1974-02-23 | 1978-06-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Konstantstromquelle mit einem von der Versorgungsspannung unabhängigen Strom |
JPS52114250A (en) * | 1976-03-22 | 1977-09-24 | Nec Corp | Transistor circuit |
US4241315A (en) * | 1979-02-23 | 1980-12-23 | Harris Corporation | Adjustable current source |
US4292583A (en) * | 1980-01-31 | 1981-09-29 | Signetics Corporation | Voltage and temperature stabilized constant current source circuit |
JPS58101310A (ja) * | 1981-12-11 | 1983-06-16 | Toshiba Corp | 電流制御回路 |
IT1212720B (it) * | 1983-03-23 | 1989-11-30 | Ates Componenti Elettron | Convertitore tensione-corrente ad alta precisione, particolarmente per basse tensioni di alimentazione. |
NL8301138A (nl) * | 1983-03-31 | 1984-10-16 | Philips Nv | Stroombronschakeling. |
US4689549A (en) * | 1986-06-30 | 1987-08-25 | Motorola, Inc. | Monolithic current splitter for providing temperature independent current ratios |
US4667146A (en) * | 1986-10-10 | 1987-05-19 | Tektronix, Inc. | Voltage-controlled push-pull current source |
US4906915A (en) * | 1989-07-03 | 1990-03-06 | Motorola, Inc. | Voltage to absolute value current converter |
-
1989
- 1989-04-27 IT IT8920281A patent/IT1229678B/it active
-
1990
- 1990-04-16 US US07/509,435 patent/US4967139A/en not_active Expired - Lifetime
- 1990-04-17 EP EP90107222A patent/EP0394805B1/en not_active Expired - Lifetime
- 1990-04-17 DE DE69017068T patent/DE69017068T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0394805B1 (en) | 1995-02-22 |
DE69017068T2 (de) | 1995-10-19 |
US4967139A (en) | 1990-10-30 |
EP0394805A3 (en) | 1991-07-31 |
IT8920281A0 (it) | 1989-04-27 |
EP0394805A2 (en) | 1990-10-31 |
DE69017068D1 (de) | 1995-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970429 |