JPS57206103A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS57206103A
JPS57206103A JP56090305A JP9030581A JPS57206103A JP S57206103 A JPS57206103 A JP S57206103A JP 56090305 A JP56090305 A JP 56090305A JP 9030581 A JP9030581 A JP 9030581A JP S57206103 A JPS57206103 A JP S57206103A
Authority
JP
Japan
Prior art keywords
voltage
comparator
circuit
comparing
exceeds
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
JP56090305A
Other languages
Japanese (ja)
Other versions
JPH0332243B2 (en
Inventor
Saburo Funada
Tatsuhiko Okuma
Kazumasa Sakai
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.)
TRIO KENWOOD CORP
Trio KK
Kenwood KK
Original Assignee
TRIO KENWOOD CORP
Trio KK
Kenwood 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 TRIO KENWOOD CORP, Trio KK, Kenwood KK filed Critical TRIO KENWOOD CORP
Priority to JP56090305A priority Critical patent/JPS57206103A/en
Publication of JPS57206103A publication Critical patent/JPS57206103A/en
Publication of JPH0332243B2 publication Critical patent/JPH0332243B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Abstract

PURPOSE: To obtain an amplifying circuit having high efficiency and at the same time to improve the distortion factor, by providing the hysteresis characteristics to a comparator or performing the positive feedback along with the hysteresis characteristics of the comparator.
CONSTITUTION: A switch means 3 is turned on by a comparator 6 when the input signal voltge Vi is lower than the voltage of a power supply 12. A load is driven by an output transistor 1. While the load is driven by an output transistor 2 when the voltage Vi exceeds the voltage of the power supply 12. Furthermore when the peak value of the voltage Vi exceeds the voltage of the supply 12, i.e. the comparing voltage of the comparator 6, a switch means 4 is kept on by a holding circuit 8 for a certain period that is decided by the time constant of a time constant circuit 7. In case when the ripple component is superposed on an input signal to have a charge at a level near the comparing voltage a positive feedback circuit 9 functions to lower the comparing voltage of the comparator 6 after the means 4 is turned on by the function of both circuits 7 and 8.
COPYRIGHT: (C)1982,JPO&Japio
JP56090305A 1981-06-12 1981-06-12 Amplifying circuit Granted JPS57206103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090305A JPS57206103A (en) 1981-06-12 1981-06-12 Amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090305A JPS57206103A (en) 1981-06-12 1981-06-12 Amplifying circuit

Publications (2)

Publication Number Publication Date
JPS57206103A true JPS57206103A (en) 1982-12-17
JPH0332243B2 JPH0332243B2 (en) 1991-05-10

Family

ID=13994821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090305A Granted JPS57206103A (en) 1981-06-12 1981-06-12 Amplifying circuit

Country Status (1)

Country Link
JP (1) JPS57206103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186405A (en) * 1983-04-07 1984-10-23 Sony Corp Power amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186405A (en) * 1983-04-07 1984-10-23 Sony Corp Power amplifier

Also Published As

Publication number Publication date
JPH0332243B2 (en) 1991-05-10

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