JPH02101615U - - Google Patents

Info

Publication number
JPH02101615U
JPH02101615U JP1024689U JP1024689U JPH02101615U JP H02101615 U JPH02101615 U JP H02101615U JP 1024689 U JP1024689 U JP 1024689U JP 1024689 U JP1024689 U JP 1024689U JP H02101615 U JPH02101615 U JP H02101615U
Authority
JP
Japan
Prior art keywords
input
potential
input stage
differential amplifier
type 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.)
Granted
Application number
JP1024689U
Other languages
Japanese (ja)
Other versions
JPH0744094Y2 (en
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 filed Critical
Priority to JP1989010246U priority Critical patent/JPH0744094Y2/en
Publication of JPH02101615U publication Critical patent/JPH02101615U/ja
Application granted granted Critical
Publication of JPH0744094Y2 publication Critical patent/JPH0744094Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Amplifiers (AREA)

Description

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

第１図は本考案の一実施例の回路図、第２図は
本考案を定電圧電源回路に適用した回路図、第３
図及び第４図は本考案の他の各実施例の回路図、
第５図及び第６図は従来の各例の回路図である。 １……入力端子、２……出力端子、３，３′…
…差動増幅器、Ｑ１〜Ｑ５，Ｑ１０，Ｑ１１……
トランジスタ、Ｖｒｅｆ……基準電圧、Ｖｃｃ３
…電源電圧、Ｒ１，Ｒ２……抵抗、ＩＢ……定電
流源。 Fig. 1 is a circuit diagram of one embodiment of the present invention, Fig. 2 is a circuit diagram in which the present invention is applied to a constant voltage power supply circuit, and Fig. 3 is a circuit diagram of an embodiment of the present invention.
4 and 4 are circuit diagrams of other embodiments of the present invention,
FIGS. 5 and 6 are circuit diagrams of each conventional example. 1...Input terminal, 2...Output terminal, 3, 3'...
...Differential amplifier, Q 1 to Q 5 , Q 10 , Q 11 ...
Transistor, V ref ...Reference voltage, V cc3
 ...power supply voltage, R1 , R2 ...resistance, IB...constant current source.

Claims (1)

【実用新案登録請求の範囲】 ＰＮＰ型トランジスタの入力段を持ち、その一
方の入力に基準電圧が印加され、その他方の入力
に、その出力にて制御された電位を分圧された分
圧電位が印加されるよう構成された差動増幅器に
おいて、 電源投入時、又は、上記分圧電位がグランドレ
ベルに落ちた後で復帰した時、上記入力段の電位
を同相入力電圧範囲内に保持する回路を上記ＰＮ
Ｐ型トランジスタの制御端子に接続してなる差動
増幅器。[Claims for Utility Model Registration] It has an input stage of a PNP type transistor, and a reference voltage is applied to one input of the input stage, and a divided potential obtained by dividing the potential controlled by its output is applied to the other input. A circuit that maintains the potential of the input stage within the common-mode input voltage range when the power is turned on, or when the divided potential returns after falling to the ground level, in a differential amplifier configured to apply The above PN
A differential amplifier connected to the control terminal of a P-type transistor.
JP1989010246U 1989-01-31 1989-01-31 Differential amplifier Expired - Fee Related JPH0744094Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989010246U JPH0744094Y2 (en) 1989-01-31 1989-01-31 Differential amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989010246U JPH0744094Y2 (en) 1989-01-31 1989-01-31 Differential amplifier

Publications (2)

Publication Number Publication Date
JPH02101615U true JPH02101615U (en) 1990-08-13
JPH0744094Y2 JPH0744094Y2 (en) 1995-10-09

Family

ID=31217731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989010246U Expired - Fee Related JPH0744094Y2 (en) 1989-01-31 1989-01-31 Differential amplifier

Country Status (1)

Country Link
JP (1) JPH0744094Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853209A (en) * 1981-09-25 1983-03-29 Mitsubishi Electric Corp Differential amplifier
JPS61166208A (en) * 1985-01-18 1986-07-26 Matsushita Electric Ind Co Ltd Charging circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853209A (en) * 1981-09-25 1983-03-29 Mitsubishi Electric Corp Differential amplifier
JPS61166208A (en) * 1985-01-18 1986-07-26 Matsushita Electric Ind Co Ltd Charging circuit

Also Published As

Publication number Publication date
JPH0744094Y2 (en) 1995-10-09

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Legal Events

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LAPS Cancellation because of no payment of annual fees