JPS6412705A - Constant current circuit - Google Patents
Constant current circuitInfo
- Publication number
- JPS6412705A JPS6412705A JP62169176A JP16917687A JPS6412705A JP S6412705 A JPS6412705 A JP S6412705A JP 62169176 A JP62169176 A JP 62169176A JP 16917687 A JP16917687 A JP 16917687A JP S6412705 A JPS6412705 A JP S6412705A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- emitter
- constant current
- base
- collector
- 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.)
- Pending
Links
Landscapes
- Control Of Electrical Variables (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To obtain micro constant current output, by grounding the emitter of a second transistor with a large current in capacity whose base is connected commonly to a first emitter-grounded transistor via a resistor, and connecting a load resistor between the collector and the base of the second transistor. CONSTITUTION:The load resistor 40 is connected between the emitter of a transistor 24 and the collector of a multiemitter transistor 25. Also, the commonly connected base of a transistor 23 and the transistor 25 is connected to the emitter of the transistor 24, and also, the collector of the transistor 25 is connected to the base of a transistor 31. In such a way, it is possible to set the resistance values of the resistors 26 and 40 at comparatively low values, and to obtain a constant current circuit suitable for the making the circuit into an integrated circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169176A JPS6412705A (en) | 1987-07-07 | 1987-07-07 | Constant current circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169176A JPS6412705A (en) | 1987-07-07 | 1987-07-07 | Constant current circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412705A true JPS6412705A (en) | 1989-01-17 |
Family
ID=15881654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62169176A Pending JPS6412705A (en) | 1987-07-07 | 1987-07-07 | Constant current circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08321732A (en) * | 1995-05-26 | 1996-12-03 | Nec Corp | Current mirror circuit and reference current circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5855455U (en) * | 1981-10-12 | 1983-04-15 | 東明興業株式会社 | Pipe house covering film fittings |
-
1987
- 1987-07-07 JP JP62169176A patent/JPS6412705A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5855455U (en) * | 1981-10-12 | 1983-04-15 | 東明興業株式会社 | Pipe house covering film fittings |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08321732A (en) * | 1995-05-26 | 1996-12-03 | Nec Corp | Current mirror circuit and reference current circuit |
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