JPS6032821U - current mirror circuit - Google Patents
current mirror circuitInfo
- Publication number
- JPS6032821U JPS6032821U JP12509483U JP12509483U JPS6032821U JP S6032821 U JPS6032821 U JP S6032821U JP 12509483 U JP12509483 U JP 12509483U JP 12509483 U JP12509483 U JP 12509483U JP S6032821 U JPS6032821 U JP S6032821U
- Authority
- JP
- Japan
- Prior art keywords
- current
- collector
- mirror circuit
- transistor
- potential
- 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
Landscapes
- Amplifiers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来の電流ミラー回路の一例を示す回路図、第
2図はこの考案による電流ミラー回路の一実施例を示す
回路図、第3図はこの考案の他の実施例を示す回路図で
ある。
1・・・・・・基準電流供給用トランジスタ、2・・・
・・・出力トランジスタ、3・・・・・・基準電流源、
4・・・・・・駆動トランジスタ、5・・・・・・電源
端子、6・・・・・・負荷抵抗、7・・・・・・出力端
子、8・・・・・・レベルシフトトランジスタ、9・・
・・・・ベースバイアス電圧供給用定電流源、lea、
10b・・・・・・ダイオード。Fig. 1 is a circuit diagram showing an example of a conventional current mirror circuit, Fig. 2 is a circuit diagram showing an embodiment of the current mirror circuit according to this invention, and Fig. 3 is a circuit diagram showing another embodiment of this invention. It is. 1...Reference current supply transistor, 2...
...Output transistor, 3...Reference current source,
4... Drive transistor, 5... Power supply terminal, 6... Load resistor, 7... Output terminal, 8... Level shift transistor , 9...
...constant current source for base bias voltage supply, lea,
10b...Diode.
Claims (1)
ランジスタのベースに駆動電流を供給する駆動トランジ
スタと、前記複数のトランジスタの1個のトランジスタ
のコレクタに基準電流を供給する基準電流供給手段とを
備え、前記ベース共通接続された複数のトランジスタの
基準電流供給側以外の出力トランジスタのコレクタから
基準電流と同一もしくは一定倍率以上の電流を取り出す
ように構成された電流ミラー回路において、前記出力ト
ランジスタのコレクタにエミッタを接続しコレクタを出
力とするレベルシフトトランジスタト、前記レベルシフ
トトランジスタのベースにベース電位を供給する定電流
源と、を設け、該レベルシフトトランジスタのベース電
位に直流バイアス電位を与えることにより、基準電流供
給側トランジスタのコレクタ電位と複数接続されたミラ
ー回路出力のコレクタ電位とを同一レベルとすることを
特徴とした電流ミラー回路。comprising a plurality of transistors whose bases are commonly connected, a drive transistor that supplies a drive current to the bases of the transistors, and a reference current supply means that supplies a reference current to the collector of one of the plurality of transistors; In a current mirror circuit configured to take out a current equal to or a certain magnification of a reference current from the collector of an output transistor other than the reference current supply side of the plurality of transistors whose bases are commonly connected, an emitter is connected to the collector of the output transistor. and a constant current source that supplies a base potential to the base of the level shift transistor, and by applying a DC bias potential to the base potential of the level shift transistor, a reference A current mirror circuit characterized in that the collector potential of a current supply side transistor and the collector potential of a plurality of mirror circuit outputs connected to each other are set at the same level.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12509483U JPS6032821U (en) | 1983-08-10 | 1983-08-10 | current mirror circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12509483U JPS6032821U (en) | 1983-08-10 | 1983-08-10 | current mirror circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6032821U true JPS6032821U (en) | 1985-03-06 |
JPH0138979Y2 JPH0138979Y2 (en) | 1989-11-21 |
Family
ID=30284939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12509483U Granted JPS6032821U (en) | 1983-08-10 | 1983-08-10 | current mirror circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6032821U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57103414A (en) * | 1980-12-17 | 1982-06-28 | Pioneer Electronic Corp | Current source circuit |
-
1983
- 1983-08-10 JP JP12509483U patent/JPS6032821U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57103414A (en) * | 1980-12-17 | 1982-06-28 | Pioneer Electronic Corp | Current source circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0138979Y2 (en) | 1989-11-21 |
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