ES386770A1 - Microampere current source - Google Patents
Microampere current sourceInfo
- Publication number
- ES386770A1 ES386770A1 ES386770A ES386770A ES386770A1 ES 386770 A1 ES386770 A1 ES 386770A1 ES 386770 A ES386770 A ES 386770A ES 386770 A ES386770 A ES 386770A ES 386770 A1 ES386770 A1 ES 386770A1
- Authority
- ES
- Spain
- Prior art keywords
- circuit
- transistor
- current
- emitter
- current source
- 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
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
- G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Amplifiers (AREA)
- Control Of Electrical Variables (AREA)
- Bipolar Integrated Circuits (AREA)
- Bipolar Transistors (AREA)
Abstract
A microamp current source arrangement for an integrated circuit, in which it is derived from a direct control current, of the order of a maximum of 10 microamps, an attenuated direct current, the direct control current circulating through a first circuit that includes a rectification junction, while the attenuated direct current flows through the emitter-collector circuit of a transistor, whose base-emitter circuit has been included in a second circuit that has the same direction of passage and has connected in parallel to the first-mentioned circuit, a substantially signal-free direct current being derived for at least one transistor, from the integrated circuit, from the collector of this transistor, having included a resistance in the closed loop constituted by the two circuits in parallel, characterized in that the emitter of the transistor has been connected to a point of constant potential, through s of a current source supplying the resistance with a current such that the voltage drop across the rectification junction exceeds the voltage drop across the base-emitter diode of the transistor by at least 20 millivolts and, as maximum 540 millivolts. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6919466A NL6919466A (en) | 1969-12-25 | 1969-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES386770A1 true ES386770A1 (en) | 1973-04-01 |
Family
ID=19808721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES386770A Expired ES386770A1 (en) | 1969-12-25 | 1970-12-23 | Microampere current source |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS509976B1 (en) |
| CA (1) | CA944020A (en) |
| DE (1) | DE2059756B2 (en) |
| ES (1) | ES386770A1 (en) |
| GB (1) | GB1339908A (en) |
| HK (1) | HK57876A (en) |
| NL (1) | NL6919466A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3329664A1 (en) * | 1983-08-17 | 1985-03-07 | Telefunken electronic GmbH, 7100 Heilbronn | CIRCUIT FOR CONVERTING SIGNAL SIGNALS |
| DE4111584A1 (en) * | 1991-04-10 | 1992-10-15 | Thomson Brandt Gmbh | CIRCUIT FOR GENERATING VERY SMALL CURRENTS |
| CN113884203B (en) * | 2021-08-30 | 2023-11-14 | 南通职业大学 | Semiconductor Vacuum Diode Temperature Sensor |
-
1969
- 1969-12-25 NL NL6919466A patent/NL6919466A/xx unknown
-
1970
- 1970-12-04 DE DE19702059756 patent/DE2059756B2/en not_active Withdrawn
- 1970-12-18 CA CA101,001A patent/CA944020A/en not_active Expired
- 1970-12-22 GB GB6082570A patent/GB1339908A/en not_active Expired
- 1970-12-22 JP JP11556570A patent/JPS509976B1/ja active Pending
- 1970-12-23 ES ES386770A patent/ES386770A1/en not_active Expired
-
1976
- 1976-09-23 HK HK57876A patent/HK57876A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6919466A (en) | 1971-06-29 |
| DE2059756A1 (en) | 1971-07-01 |
| HK57876A (en) | 1976-10-01 |
| JPS509976B1 (en) | 1975-04-17 |
| DE2059756B2 (en) | 1976-06-10 |
| CA944020A (en) | 1974-03-19 |
| GB1339908A (en) | 1973-12-05 |
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