JPS5717211A - Constant current bias circuit - Google Patents
Constant current bias circuitInfo
- Publication number
- JPS5717211A JPS5717211A JP8469681A JP8469681A JPS5717211A JP S5717211 A JPS5717211 A JP S5717211A JP 8469681 A JP8469681 A JP 8469681A JP 8469681 A JP8469681 A JP 8469681A JP S5717211 A JPS5717211 A JP S5717211A
- Authority
- JP
- Japan
- Prior art keywords
- current
- constant current
- diode
- power supply
- base
- 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 improve the ripple rejection ratio of the power supply line remarkably, by connecting a diode between the base and emitter of a transistor (TR) for constant current and connecting the collector and base via a current Miller circuit.
CONSTITUTION: When a current flows to a line consisting of a TR9 and diode 8, a current flows to a TR7 for constant current, this current becomes a current in response to the ratio of the emitter resistors for TRs 9, 10 accurately via a current Miller circuit consisting of the Trs 9, 10 and this current flows to the line consisting of the TR9 and the diode 8 and converges to a constant current. With this constitution, an impedance viewing from the diode 8 to the positive power supply is made infinitive through the current Miller circuit and the impedance viewing the negative power supply becomes very low. Further, the constant current bias is picked up from the base of the TR7 for constant current.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8469681A JPS5717211A (en) | 1981-06-01 | 1981-06-01 | Constant current bias circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8469681A JPS5717211A (en) | 1981-06-01 | 1981-06-01 | Constant current bias circuit |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9852476A Division JPS5323056A (en) | 1976-08-17 | 1976-08-17 | Constant current biasing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5717211A true JPS5717211A (en) | 1982-01-28 |
Family
ID=13837822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8469681A Pending JPS5717211A (en) | 1981-06-01 | 1981-06-01 | Constant current bias circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5717211A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59126317A (en) * | 1982-12-29 | 1984-07-20 | Fujitsu Ltd | Reference voltage generating circuit |
JPS6390205A (en) * | 1986-10-03 | 1988-04-21 | Rohm Co Ltd | Graphic equalizer |
JPS63104505A (en) * | 1986-10-21 | 1988-05-10 | Nec Corp | Voltage propagation circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4850248A (en) * | 1971-10-21 | 1973-07-16 |
-
1981
- 1981-06-01 JP JP8469681A patent/JPS5717211A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4850248A (en) * | 1971-10-21 | 1973-07-16 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59126317A (en) * | 1982-12-29 | 1984-07-20 | Fujitsu Ltd | Reference voltage generating circuit |
JPH0560282B2 (en) * | 1982-12-29 | 1993-09-02 | Fujitsu Ltd | |
JPS6390205A (en) * | 1986-10-03 | 1988-04-21 | Rohm Co Ltd | Graphic equalizer |
JPS63104505A (en) * | 1986-10-21 | 1988-05-10 | Nec Corp | Voltage propagation circuit |
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