EP0231872A3 - Switching current source - Google Patents
Switching current source Download PDFInfo
- Publication number
- EP0231872A3 EP0231872A3 EP87101174A EP87101174A EP0231872A3 EP 0231872 A3 EP0231872 A3 EP 0231872A3 EP 87101174 A EP87101174 A EP 87101174A EP 87101174 A EP87101174 A EP 87101174A EP 0231872 A3 EP0231872 A3 EP 0231872A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- current source
- switching current
- branches
- source transistor
- switching transistors
- 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.)
- Granted
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
-
- 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
- G05F3/24—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 field-effect type only
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Nonlinear Science (AREA)
- Control Of Electrical Variables (AREA)
- Amplifiers (AREA)
- Electronic Switches (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Semiconductor Lasers (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87101174T ATE77180T1 (en) | 1986-02-03 | 1987-01-28 | SWITCHED POWER SOURCE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3603241 | 1986-02-03 | ||
DE3603241 | 1986-02-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0231872A2 EP0231872A2 (en) | 1987-08-12 |
EP0231872A3 true EP0231872A3 (en) | 1989-03-22 |
EP0231872B1 EP0231872B1 (en) | 1992-06-10 |
Family
ID=6293251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87101174A Expired - Lifetime EP0231872B1 (en) | 1986-02-03 | 1987-01-28 | Switching current source |
Country Status (6)
Country | Link |
---|---|
US (1) | US4841222A (en) |
EP (1) | EP0231872B1 (en) |
JP (1) | JP2782436B2 (en) |
KR (1) | KR950010132B1 (en) |
AT (1) | ATE77180T1 (en) |
DE (1) | DE3779666D1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4315296C2 (en) * | 1993-05-07 | 2000-03-02 | Siemens Ag | Current source arrangement for generating multiple reference currents |
BE1008031A3 (en) * | 1994-01-20 | 1995-12-12 | Philips Electronics Nv | Interference DEVICE FOR GENERATING SET FLOW. |
GB9404013D0 (en) * | 1994-03-02 | 1994-04-20 | Inmos Ltd | Current generating unit |
EP0735677B1 (en) * | 1995-03-31 | 1999-12-22 | Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno | Oscillator circuit having oscillation frequency independent from the supply voltage value |
US5990753A (en) * | 1996-01-29 | 1999-11-23 | Stmicroelectronics, Inc. | Precision oscillator circuit having a controllable duty cycle and related methods |
JP4667781B2 (en) * | 2004-07-21 | 2011-04-13 | ルネサスエレクトロニクス株式会社 | Current source circuit and differential amplifier |
US10193507B1 (en) | 2017-07-31 | 2019-01-29 | Analog Devices Global | Current switching circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4345604A (en) * | 1976-01-22 | 1982-08-24 | Vitafin N.V. | Long life cardiac pacer with switching power |
US4504779A (en) * | 1983-03-11 | 1985-03-12 | Hewlett-Packard Company | Electrical load drive and control system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5244427A (en) * | 1975-10-03 | 1977-04-07 | Koyo Kensetsu Kougiyou Kk | Fourrway switch cock for gases |
JPS56500108A (en) * | 1979-03-13 | 1981-02-05 | ||
JPS5990412A (en) * | 1982-11-15 | 1984-05-24 | Nec Corp | Bidirectional constant current driving circuit |
JPS59139723A (en) * | 1983-01-31 | 1984-08-10 | Fujitsu Ltd | Differential switch circuit |
JPS5984930U (en) * | 1983-10-26 | 1984-06-08 | 富士通株式会社 | level shift circuit device |
US4525682A (en) * | 1984-02-07 | 1985-06-25 | Zenith Electronics Corporation | Biased current mirror having minimum switching delay |
US4684831A (en) * | 1984-08-21 | 1987-08-04 | Applied Micro Circuits Corporation | Level shift circuit for interfacing between two different voltage levels using a current mirror circuit |
US4684880A (en) * | 1986-12-09 | 1987-08-04 | Trw Inc. | Reference current generator circuit |
-
1987
- 1987-01-28 AT AT87101174T patent/ATE77180T1/en not_active IP Right Cessation
- 1987-01-28 EP EP87101174A patent/EP0231872B1/en not_active Expired - Lifetime
- 1987-01-28 DE DE8787101174T patent/DE3779666D1/en not_active Expired - Lifetime
- 1987-01-30 JP JP62020357A patent/JP2782436B2/en not_active Expired - Lifetime
- 1987-01-30 US US07/009,251 patent/US4841222A/en not_active Expired - Lifetime
- 1987-01-31 KR KR1019870000756A patent/KR950010132B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4345604A (en) * | 1976-01-22 | 1982-08-24 | Vitafin N.V. | Long life cardiac pacer with switching power |
US4504779A (en) * | 1983-03-11 | 1985-03-12 | Hewlett-Packard Company | Electrical load drive and control system |
Also Published As
Publication number | Publication date |
---|---|
ATE77180T1 (en) | 1992-06-15 |
KR950010132B1 (en) | 1995-09-07 |
JPS62184516A (en) | 1987-08-12 |
KR870008242A (en) | 1987-09-25 |
JP2782436B2 (en) | 1998-07-30 |
EP0231872B1 (en) | 1992-06-10 |
EP0231872A2 (en) | 1987-08-12 |
DE3779666D1 (en) | 1992-07-16 |
US4841222A (en) | 1989-06-20 |
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