JPS54111260A - Level shift circuit - Google Patents

Level shift circuit

Info

Publication number
JPS54111260A
JPS54111260A JP1838178A JP1838178A JPS54111260A JP S54111260 A JPS54111260 A JP S54111260A JP 1838178 A JP1838178 A JP 1838178A JP 1838178 A JP1838178 A JP 1838178A JP S54111260 A JPS54111260 A JP S54111260A
Authority
JP
Japan
Prior art keywords
level
level shift
shift circuit
output
equal
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
JP1838178A
Other languages
Japanese (ja)
Inventor
Jun Ishii
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1838178A priority Critical patent/JPS54111260A/en
Publication of JPS54111260A publication Critical patent/JPS54111260A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—Dc amplifiers in which all stages are dc-coupled
    • H03F3/343—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only
    • H03F3/347—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only in integrated circuits

Abstract

PURPOSE:To perform level shift well by giving not only a level shift operation but also a prescribed gain or attenuation quantity as required in a simple constitution. CONSTITUTION:In this circuit, the DC level of the emitter of outputting emitter follower transistor Q4 is 0, and the AC level is (R1+R2)ei/R1 when input signal components are ei. Consequently, the DC and AC level of the potential at output end OUT is -R3VEE/(R3+R3);(R1+R2)/R1xR3ei/(R3+R4); and when R2/ R1=R4/R3 is set, the AC level of the output potential is equal to ei, and a simple DC level shift is performed. When R2/R1not equal to R4/R3 is set, a level shift operation having a prescribed gain or attenuation degree can be performed by making the output AC level larger or smaller than ei.
JP1838178A 1978-02-20 1978-02-20 Level shift circuit Pending JPS54111260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1838178A JPS54111260A (en) 1978-02-20 1978-02-20 Level shift circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1838178A JPS54111260A (en) 1978-02-20 1978-02-20 Level shift circuit

Publications (1)

Publication Number Publication Date
JPS54111260A true JPS54111260A (en) 1979-08-31

Family

ID=11970126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1838178A Pending JPS54111260A (en) 1978-02-20 1978-02-20 Level shift circuit

Country Status (1)

Country Link
JP (1) JPS54111260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6112108A (en) * 1984-06-27 1986-01-20 Rohm Co Ltd Input circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS47485U (en) * 1971-01-14 1972-08-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS47485U (en) * 1971-01-14 1972-08-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6112108A (en) * 1984-06-27 1986-01-20 Rohm Co Ltd Input circuit
JPH0412644B2 (en) * 1984-06-27 1992-03-05 Rohm Kk

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