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JPS5446455A - Power amplifier - Google Patents

Power amplifier

Info

Publication number
JPS5446455A
JPS5446455A JP11310577A JP11310577A JPS5446455A JP S5446455 A JPS5446455 A JP S5446455A JP 11310577 A JP11310577 A JP 11310577A JP 11310577 A JP11310577 A JP 11310577A JP S5446455 A JPS5446455 A JP S5446455A
Authority
JP
Japan
Prior art keywords
circuit
transistor
transistors
constitution
distortion
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
JP11310577A
Other languages
Japanese (ja)
Other versions
JPS626362B2 (en
Inventor
Masashi Shoji
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 JP11310577A priority Critical patent/JPS5446455A/en
Publication of JPS5446455A publication Critical patent/JPS5446455A/en
Publication of JPS626362B2 publication Critical patent/JPS626362B2/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
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

Landscapes

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

Abstract

PURPOSE:To reduce notching distortion, and to decrease the distortion rate of an output waveform of a couple of power amplefier circuit composed of two single- ended push-pull circuits, by interposing resistance and diodes between PNP transistors contituting circuits. CONSTITUTION:The composite NTN transistor of transistors 11 and 12 is connected in series to driving transistor 10, and in paralel to it, the compostite PNP transistor of transistors 13, 14 and 15 is connected to constituted single-ended push- pull circuit 1. In addition, circuit 1' of the same constitution as this circuit is provided, and the both constitute a couple of power amplifiers. In this constitution, resistances 16 and 16' are provided between collectors of transistor 13 of circuit 1 and transistor 13' of circuit 1', and the connection points between those resistances are grounded by diodes 17 and 18. As a result, when transistors 13 and 13' are turned ON and OFF or OFF and ON respectively, the notching distortion contained in the output waveform is reduced remarkably.
JP11310577A 1977-09-19 1977-09-19 Power amplifier Granted JPS5446455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11310577A JPS5446455A (en) 1977-09-19 1977-09-19 Power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11310577A JPS5446455A (en) 1977-09-19 1977-09-19 Power amplifier

Publications (2)

Publication Number Publication Date
JPS5446455A true JPS5446455A (en) 1979-04-12
JPS626362B2 JPS626362B2 (en) 1987-02-10

Family

ID=14603602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11310577A Granted JPS5446455A (en) 1977-09-19 1977-09-19 Power amplifier

Country Status (1)

Country Link
JP (1) JPS5446455A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104817A (en) * 1989-09-19 1991-05-01 Yamazaki Kagaku Kogyo Kk Vacuum heat treatment device

Also Published As

Publication number Publication date
JPS626362B2 (en) 1987-02-10

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