JPS555559A - Integrated circuit - Google Patents

Integrated circuit

Info

Publication number
JPS555559A
JPS555559A JP7893078A JP7893078A JPS555559A JP S555559 A JPS555559 A JP S555559A JP 7893078 A JP7893078 A JP 7893078A JP 7893078 A JP7893078 A JP 7893078A JP S555559 A JPS555559 A JP S555559A
Authority
JP
Japan
Prior art keywords
output
amplifier
resistors
negative feedback
vcc
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
JP7893078A
Other languages
Japanese (ja)
Inventor
Yoshiaki Sano
Toshio Hanazawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7893078A priority Critical patent/JPS555559A/en
Publication of JPS555559A publication Critical patent/JPS555559A/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
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3081—Duplicated single-ended push-pull arrangements, i.e. bridge circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To simplify the constitution of BTL connection circuit by using the second amplifier taking the output of the first amplifier as inversion type negative feedback. CONSTITUTION:The negative feedback constant of the amplifier A1 is determined with the resistors R1, R2 and capacitor C1. The DC level of output is set to 1/2 of the power supply voltage Vcc. Accordingly, the output of the amplifier A1 is connected to the amplifier A4 via the inversion type negative feedback circuit consisting of the resistors R3' and R4', and bias of Vcc/c is given to the positive input, then the DC output level of the amplifier A4 is Vcc/2. With R3'=R4', the output of opposite phase can be obtained from the amplifiers A1 and A4. This output is taken as the same value and a load is connected between the output terminals. Further, by taking the output of the amplifier A1 as one input, the both gains can be adjusted with the adjustment of the resistor R1 only. The balance of the amplifiers can simply be taken with the resistors R3' and R4'.
JP7893078A 1978-06-29 1978-06-29 Integrated circuit Pending JPS555559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7893078A JPS555559A (en) 1978-06-29 1978-06-29 Integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7893078A JPS555559A (en) 1978-06-29 1978-06-29 Integrated circuit

Publications (1)

Publication Number Publication Date
JPS555559A true JPS555559A (en) 1980-01-16

Family

ID=13675580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7893078A Pending JPS555559A (en) 1978-06-29 1978-06-29 Integrated circuit

Country Status (1)

Country Link
JP (1) JPS555559A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58180592A (en) * 1982-04-19 1983-10-22 Sumitomo Metal Ind Ltd Coal gasification
JPS61100012A (en) * 1984-10-23 1986-05-19 Olympus Optical Co Ltd Amplifier circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236401A (en) * 1975-09-17 1977-03-19 Hideo Umetsu Time reduction method for information transmission circuit and its dev ice which used telephone circuit
JPS5287950A (en) * 1976-01-17 1977-07-22 Matsushita Electric Ind Co Ltd Analog voltage memory unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236401A (en) * 1975-09-17 1977-03-19 Hideo Umetsu Time reduction method for information transmission circuit and its dev ice which used telephone circuit
JPS5287950A (en) * 1976-01-17 1977-07-22 Matsushita Electric Ind Co Ltd Analog voltage memory unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58180592A (en) * 1982-04-19 1983-10-22 Sumitomo Metal Ind Ltd Coal gasification
JPS61100012A (en) * 1984-10-23 1986-05-19 Olympus Optical Co Ltd Amplifier circuit

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