JPS5635512A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS5635512A
JPS5635512A JP9736479A JP9736479A JPS5635512A JP S5635512 A JPS5635512 A JP S5635512A JP 9736479 A JP9736479 A JP 9736479A JP 9736479 A JP9736479 A JP 9736479A JP S5635512 A JPS5635512 A JP S5635512A
Authority
JP
Japan
Prior art keywords
amplifier
impedance
emitter
output
input
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
JP9736479A
Other languages
Japanese (ja)
Inventor
Akira Kaneko
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP9736479A priority Critical patent/JPS5635512A/en
Publication of JPS5635512A publication Critical patent/JPS5635512A/en
Pending 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth

Landscapes

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

Abstract

PURPOSE:To secure the compensation of the frequency characteristics, by securing a combination of the emitter-follower circuit of the feedback amplifying circuit and thus increasing the input impedance as well as lowering the output impedance respectively. CONSTITUTION:A high level is kept for the input impedance since the input terminal 1 of the amplifier is connected directly to the input terminal 4 of the IC5. At the same time, the output terminal 6 of the IC5 is connected to the frequency compensating circuit consisting of the resistance 2 and the capacitor 3, and the output terminal of the frequency compensating circuit is connected to the base of the transistor 16 forming the emitter-follower circuit. Thus the output impedance measured at the output terminal 7 of the amplifier is very small in comparison with that without the emitter-follower. Accordingly, and amplifier having a high input impedance and a low output impedance can be obtained.
JP9736479A 1979-08-01 1979-08-01 Amplifier Pending JPS5635512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9736479A JPS5635512A (en) 1979-08-01 1979-08-01 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9736479A JPS5635512A (en) 1979-08-01 1979-08-01 Amplifier

Publications (1)

Publication Number Publication Date
JPS5635512A true JPS5635512A (en) 1981-04-08

Family

ID=14190440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9736479A Pending JPS5635512A (en) 1979-08-01 1979-08-01 Amplifier

Country Status (1)

Country Link
JP (1) JPS5635512A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061968A (en) * 1973-09-29 1975-05-27
JPS5098756A (en) * 1973-12-26 1975-08-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061968A (en) * 1973-09-29 1975-05-27
JPS5098756A (en) * 1973-12-26 1975-08-06

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