JPS54127263A - Negative feedback amplifier - Google Patents

Negative feedback amplifier

Info

Publication number
JPS54127263A
JPS54127263A JP3511978A JP3511978A JPS54127263A JP S54127263 A JPS54127263 A JP S54127263A JP 3511978 A JP3511978 A JP 3511978A JP 3511978 A JP3511978 A JP 3511978A JP S54127263 A JPS54127263 A JP S54127263A
Authority
JP
Japan
Prior art keywords
input
output
transistor
side hybrid
balance
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
JP3511978A
Other languages
Japanese (ja)
Other versions
JPS5745482B2 (en
Inventor
Hidetoshi Oota
Nobuyuki Tokura
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3511978A priority Critical patent/JPS54127263A/en
Publication of JPS54127263A publication Critical patent/JPS54127263A/en
Publication of JPS5745482B2 publication Critical patent/JPS5745482B2/ja
Granted 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
    • H03F3/45—Differential amplifiers

Landscapes

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

Abstract

PURPOSE:To increase the power gain of a high-gain negative feed-back amplifier used for a coaxial repeater, etc., by preventing the input and output currents of a transistor after being fed back from flowing the same element by using a balance- unbalance converter circuit. CONSTITUTION:Initial-stage transistor 7 is connected to input terminal 1 via input- side hybrid transformer 3, and intermediate-stage commen collector transistor 8 and post-state common emitter transistor 9 are connected via balance-unbalance converter circuit 11 and then connected to output terminal 2 via output-side hybrid transformer 4. Elements 5 and 6 are external resistances connected to windings of input-side and output-side hybrid transformers 3 and 4, and element 10 is a feedback circuit network coupling input and output terminals together.
JP3511978A 1978-03-27 1978-03-27 Negative feedback amplifier Granted JPS54127263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3511978A JPS54127263A (en) 1978-03-27 1978-03-27 Negative feedback amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3511978A JPS54127263A (en) 1978-03-27 1978-03-27 Negative feedback amplifier

Publications (2)

Publication Number Publication Date
JPS54127263A true JPS54127263A (en) 1979-10-03
JPS5745482B2 JPS5745482B2 (en) 1982-09-28

Family

ID=12433033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3511978A Granted JPS54127263A (en) 1978-03-27 1978-03-27 Negative feedback amplifier

Country Status (1)

Country Link
JP (1) JPS54127263A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591217A (en) * 1978-12-28 1980-07-10 Fujitsu Ltd Microwave multi-stage amplifier
WO2003003567A1 (en) * 2001-06-29 2003-01-09 Harada Industry Co., Ltd. Fm antenna amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591217A (en) * 1978-12-28 1980-07-10 Fujitsu Ltd Microwave multi-stage amplifier
WO2003003567A1 (en) * 2001-06-29 2003-01-09 Harada Industry Co., Ltd. Fm antenna amplifier
US6653905B2 (en) 2001-06-29 2003-11-25 Harada Industry Co., Ltd. Amplifier for FM antennas

Also Published As

Publication number Publication date
JPS5745482B2 (en) 1982-09-28

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