FR2345761A1 - Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths - Google Patents
Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider pathsInfo
- Publication number
- FR2345761A1 FR2345761A1 FR7608862A FR7608862A FR2345761A1 FR 2345761 A1 FR2345761 A1 FR 2345761A1 FR 7608862 A FR7608862 A FR 7608862A FR 7608862 A FR7608862 A FR 7608862A FR 2345761 A1 FR2345761 A1 FR 2345761A1
- Authority
- FR
- France
- Prior art keywords
- dissipation
- coupling
- voltage source
- constant current
- integrated unit
- 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
- 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
- G05F3/26—Current mirrors
- G05F3/265—Current mirrors using bipolar transistors only
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)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Amplifiers (AREA)
Abstract
The constant current supply source is suitable for feeding one or more tandem stages of I2L circuits from a source of very variable voltage with a minimum power dissipation. The unit has a first current distribution path of a diode D1 in a circuit B1 bridging the base-emitter junction of an NPN transistor T2. The emitter of T2 is connected to the negative line L2 and its collector/emitter junction is included in a second current circuit B2, connected to the positive line L1 via the collector/emitter junction of a pnp transistor with a resistance in its emitter circuit.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7608862A FR2345761A1 (en) | 1976-03-26 | 1976-03-26 | Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths |
DE2616363A DE2616363C3 (en) | 1975-04-24 | 1976-04-14 | Device for supplying a constant direct feed current |
NL7604123A NL7604123A (en) | 1975-04-24 | 1976-04-20 | DEVICE FOR SUPPLYING REGULATED POWER. |
GB16105/76A GB1548930A (en) | 1975-04-24 | 1976-04-21 | Regulated current supply circuit |
IT22516/76A IT1063401B (en) | 1975-04-24 | 1976-04-21 | POWER SUPPLY OF A STABILIZED CURRENT |
CA250,617A CA1061864A (en) | 1975-04-24 | 1976-04-21 | Device for supplying a regulated current |
US05/678,867 US4078199A (en) | 1975-04-24 | 1976-04-21 | Device for supplying a regulated current |
JP51045017A JPS51127447A (en) | 1975-04-24 | 1976-04-22 | Regulated current supply unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7608862A FR2345761A1 (en) | 1976-03-26 | 1976-03-26 | Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2345761A1 true FR2345761A1 (en) | 1977-10-21 |
FR2345761B1 FR2345761B1 (en) | 1979-06-29 |
Family
ID=9171017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7608862A Granted FR2345761A1 (en) | 1975-04-24 | 1976-03-26 | Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2345761A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011704A1 (en) * | 1978-11-23 | 1980-06-11 | Siemens Aktiengesellschaft | Voltage reference source, in particular for amplifier circuits |
-
1976
- 1976-03-26 FR FR7608862A patent/FR2345761A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011704A1 (en) * | 1978-11-23 | 1980-06-11 | Siemens Aktiengesellschaft | Voltage reference source, in particular for amplifier circuits |
Also Published As
Publication number | Publication date |
---|---|
FR2345761B1 (en) | 1979-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |