JPS6071920U - constant current source circuit - Google Patents

constant current source circuit

Info

Publication number
JPS6071920U
JPS6071920U JP15934683U JP15934683U JPS6071920U JP S6071920 U JPS6071920 U JP S6071920U JP 15934683 U JP15934683 U JP 15934683U JP 15934683 U JP15934683 U JP 15934683U JP S6071920 U JPS6071920 U JP S6071920U
Authority
JP
Japan
Prior art keywords
current source
constant current
source circuit
circuit
current
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
Application number
JP15934683U
Other languages
Japanese (ja)
Inventor
江森　隆久
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP15934683U priority Critical patent/JPS6071920U/en
Publication of JPS6071920U publication Critical patent/JPS6071920U/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す定電流源の回路図、
第２図はこの考案の応用例を示す差動増幅器の回路図で
ある。 図中、Ｑ３．Ｑ、は差動増幅回路を形成するトランジス
タ、Ｑ７は負帰還用トランジスタ、Ｑ９．Ｑｌｏはカレ
ントミラー効果で接続されている第１、第２の電流源、
Ｒ□、Ｒ２は抵抗を示す。FIG. 1 is a circuit diagram of a constant current source showing an embodiment of this invention.
FIG. 2 is a circuit diagram of a differential amplifier showing an example of application of this invention. In the figure, Q3. Q is a transistor forming a differential amplifier circuit, Q7 is a negative feedback transistor, Q9. Qlo is the first and second current sources connected by the current mirror effect;
R□ and R2 indicate resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負帰還回路が付加されている差動増幅回路の入力ベース
電極に接続されている第１、第２の抵抗と、前記第１、
第２の抵抗に電流を供給するカレントミラー効果によっ
て結合されている第１、第２の電流源とからなり、前記
第１、第２の抵抗の比をほぼ自然対数の底ｅとなるよう
に設定することによって、前記第１又は第２のいずれか
の電流源が温度電圧に比例する定電流とされるように構
成されていることを特徴とする定電流源回路。first and second resistors connected to input base electrodes of a differential amplifier circuit to which a negative feedback circuit is added;
and a first and second current source coupled by a current mirror effect that supplies current to a second resistor, the ratio of the first and second resistors being approximately the base e of the natural logarithm. 1. A constant current source circuit, characterized in that, by setting, either the first or second current source is configured to have a constant current proportional to temperature voltage.
JP15934683U 1983-10-17 1983-10-17 constant current source circuit Pending JPS6071920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15934683U JPS6071920U (en) 1983-10-17 1983-10-17 constant current source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15934683U JPS6071920U (en) 1983-10-17 1983-10-17 constant current source circuit

Publications (1)

Publication Number Publication Date
JPS6071920U true JPS6071920U (en) 1985-05-21

Family

ID=30350798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15934683U Pending JPS6071920U (en) 1983-10-17 1983-10-17 constant current source circuit

Country Status (1)

Country Link
JP (1) JPS6071920U (en)

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