JPS54118758A - Negative feedbak amplifier - Google Patents

Negative feedbak amplifier

Info

Publication number
JPS54118758A
JPS54118758A JP2684178A JP2684178A JPS54118758A JP S54118758 A JPS54118758 A JP S54118758A JP 2684178 A JP2684178 A JP 2684178A JP 2684178 A JP2684178 A JP 2684178A JP S54118758 A JPS54118758 A JP S54118758A
Authority
JP
Japan
Prior art keywords
earthed
collector
inductance
securing
constitution
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
JP2684178A
Other languages
Japanese (ja)
Other versions
JPS6119133B2 (en
Inventor
Toru Hamanaka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2684178A priority Critical patent/JPS54118758A/en
Publication of JPS54118758A publication Critical patent/JPS54118758A/en
Publication of JPS6119133B2 publication Critical patent/JPS6119133B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers

Abstract

PURPOSE:To realize the high gain and high band for the negative feedback amplifier whose starting and ending steps are emitter-earthed with the intermediate step collector-earthed by applying such technique that the loop gain is shaped while securing the conjugate impedance matching. CONSTITUTION:The negative feedback amplifier of 3-step structure uses emitter- earthed transistor Tr3 and 5 for the starting and ending steps and collector-earthed Tr4 for the intermediate step respectively. And inductance 14, which is formed so that at least one resonance frequency is secured and the serial connection may be secured between inductance 14, resistance 15 and 16 to the DC, plus the 2-terminal circuit network featuring the serial-connected impedance are connected between the reference potential and point (a) where Tr3 is connected to the base input of Tr4. Through this 2-terminal network, the DC bias current is supplied to the collector of Tr3. In such constitution of the circuit, both the high gain and high band can be realized while securing the conjugate impedance matching.
JP2684178A 1978-03-08 1978-03-08 Negative feedbak amplifier Granted JPS54118758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2684178A JPS54118758A (en) 1978-03-08 1978-03-08 Negative feedbak amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2684178A JPS54118758A (en) 1978-03-08 1978-03-08 Negative feedbak amplifier

Publications (2)

Publication Number Publication Date
JPS54118758A true JPS54118758A (en) 1979-09-14
JPS6119133B2 JPS6119133B2 (en) 1986-05-15

Family

ID=12204487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2684178A Granted JPS54118758A (en) 1978-03-08 1978-03-08 Negative feedbak amplifier

Country Status (1)

Country Link
JP (1) JPS54118758A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6285009U (en) * 1985-11-15 1987-05-30
US4975658A (en) * 1988-07-22 1990-12-04 Pioneer Electronic Corporation High frequency amplifier circuit with noise figure improvement
JP2013191910A (en) * 2012-03-12 2013-09-26 Fujitsu Ltd Amplifier and amplification method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6046641A (en) * 1998-07-22 2000-04-04 Eni Technologies, Inc. Parallel HV MOSFET high power stable amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6285009U (en) * 1985-11-15 1987-05-30
US4975658A (en) * 1988-07-22 1990-12-04 Pioneer Electronic Corporation High frequency amplifier circuit with noise figure improvement
JP2013191910A (en) * 2012-03-12 2013-09-26 Fujitsu Ltd Amplifier and amplification method

Also Published As

Publication number Publication date
JPS6119133B2 (en) 1986-05-15

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