JPS5758405A - Semiconductor electric circuit - Google Patents
Semiconductor electric circuitInfo
- Publication number
- JPS5758405A JPS5758405A JP55132946A JP13294680A JPS5758405A JP S5758405 A JPS5758405 A JP S5758405A JP 55132946 A JP55132946 A JP 55132946A JP 13294680 A JP13294680 A JP 13294680A JP S5758405 A JPS5758405 A JP S5758405A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- collector
- constant
- current
- transistor
- 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
- Amplifiers (AREA)
Abstract
PURPOSE: To reduce error of a constant current output, by setting the voltage operating point of a current setting transistor to a region where a collector current is constant.
CONSTITUTION: A means 20 having a constant voltage characteristics is connected to base and collector of a current setting transistor 10, a voltage between th collector and emitter at setting is increased, and th nonlinear effect can be reduced. A voltage between the collector and emitter of the transistor 10 is increased by a voltage of a means 20 having the constant voltage characteristics, and the operating point is as shown in point (c), the voltage between the collector and emitter can be increased as VB3, and the constant current region of the transistor can be utilized, and the output current characteristics can be improved. As the means 20 of the constant voltage characteristics, battery, constant voltage diode and diode forward series connection can be used.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55132946A JPS5758405A (en) | 1980-09-26 | 1980-09-26 | Semiconductor electric circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55132946A JPS5758405A (en) | 1980-09-26 | 1980-09-26 | Semiconductor electric circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5758405A true JPS5758405A (en) | 1982-04-08 |
Family
ID=15093186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55132946A Pending JPS5758405A (en) | 1980-09-26 | 1980-09-26 | Semiconductor electric circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5758405A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342652A (en) * | 1976-09-30 | 1978-04-18 | Sony Corp | Transistor circuit |
-
1980
- 1980-09-26 JP JP55132946A patent/JPS5758405A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342652A (en) * | 1976-09-30 | 1978-04-18 | Sony Corp | Transistor circuit |
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