JPS5730407A - Feedback amplifier - Google Patents

Feedback amplifier

Info

Publication number
JPS5730407A
JPS5730407A JP10546580A JP10546580A JPS5730407A JP S5730407 A JPS5730407 A JP S5730407A JP 10546580 A JP10546580 A JP 10546580A JP 10546580 A JP10546580 A JP 10546580A JP S5730407 A JPS5730407 A JP S5730407A
Authority
JP
Japan
Prior art keywords
positive feedback
clipped
output voltage
zero
collector
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
JP10546580A
Other languages
Japanese (ja)
Other versions
JPS643365B2 (en
Inventor
Hideyasu Jikou
Takeshi Sato
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10546580A priority Critical patent/JPS5730407A/en
Publication of JPS5730407A publication Critical patent/JPS5730407A/en
Publication of JPS643365B2 publication Critical patent/JPS643365B2/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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor amplifiers

Abstract

PURPOSE:To make the operation stable, by by-passing a positive feedback loop when an output voltage is clipped. CONSTITUTION:At normal state, a diode 28 is at cutoff and it is turned on just before the output voltage is clipped. Thus, a current starts flowing from the collector of a transistor (TR)13 to a TR11 to form a by-pass circuit to a positive feedback circui consisting of capacitors 20, 21, TR11 and its collector resistor 22. Thus, the load of the TR11 is zero, that is, a closed loop transfer function K of the positive feedback is zero. Then, since the positive feedback loop is opened just before the output voltage is clipped, the unstability of the system at clipping can be avoided.
JP10546580A 1980-07-30 1980-07-30 Feedback amplifier Granted JPS5730407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10546580A JPS5730407A (en) 1980-07-30 1980-07-30 Feedback amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10546580A JPS5730407A (en) 1980-07-30 1980-07-30 Feedback amplifier

Publications (2)

Publication Number Publication Date
JPS5730407A true JPS5730407A (en) 1982-02-18
JPS643365B2 JPS643365B2 (en) 1989-01-20

Family

ID=14408319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10546580A Granted JPS5730407A (en) 1980-07-30 1980-07-30 Feedback amplifier

Country Status (1)

Country Link
JP (1) JPS5730407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257423U (en) * 1985-09-26 1987-04-09
US5950578A (en) * 1996-10-09 1999-09-14 Honda Giken Kogyo Kabushiki Kaisha Air-cooled engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257423U (en) * 1985-09-26 1987-04-09
US5950578A (en) * 1996-10-09 1999-09-14 Honda Giken Kogyo Kabushiki Kaisha Air-cooled engine

Also Published As

Publication number Publication date
JPS643365B2 (en) 1989-01-20

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