JPS5799009A - Power amplifier - Google Patents

Power amplifier

Info

Publication number
JPS5799009A
JPS5799009A JP17449180A JP17449180A JPS5799009A JP S5799009 A JPS5799009 A JP S5799009A JP 17449180 A JP17449180 A JP 17449180A JP 17449180 A JP17449180 A JP 17449180A JP S5799009 A JPS5799009 A JP S5799009A
Authority
JP
Japan
Prior art keywords
trq
output
collector
voltage
inverted darlington
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
JP17449180A
Other languages
Japanese (ja)
Inventor
Kunio Seki
Ritsuji Takeshita
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17449180A priority Critical patent/JPS5799009A/en
Publication of JPS5799009A publication Critical patent/JPS5799009A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To achieve a power amplifier with high output voltage, by inputting an inverting signal obtained from the collector of a transistor (TR) to the base of which a voltage signal is applied, to a TR of an inverted Darlington form.
CONSTITUTION: The 1st output circuit which takes part in a positive half wave output signal of an output stage power amplifying circuit, consists of a TRQ6 to the base of which an output voltage of a class A amplifying circuit is applied, a PNP driving TRQ7 of inverted Darlington form taking an inverting signal obtained from the collector, and an NPN output TRQ8, and the collector and emitter of the TRQ6 are provided with resistors R6, R7. On the other hand, the 2nd output circuit taking part in a negative output signal consists of a PNP driving TRQ4 of inverted Darlington form taking the collector output voltage of a class A amplifier TRQ2 as the input, and an NPN output TRQ5.
COPYRIGHT: (C)1982,JPO&Japio
JP17449180A 1980-12-12 1980-12-12 Power amplifier Pending JPS5799009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17449180A JPS5799009A (en) 1980-12-12 1980-12-12 Power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17449180A JPS5799009A (en) 1980-12-12 1980-12-12 Power amplifier

Publications (1)

Publication Number Publication Date
JPS5799009A true JPS5799009A (en) 1982-06-19

Family

ID=15979411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17449180A Pending JPS5799009A (en) 1980-12-12 1980-12-12 Power amplifier

Country Status (1)

Country Link
JP (1) JPS5799009A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5013480U (en) * 1973-05-29 1975-02-12
JPS55143809A (en) * 1979-04-25 1980-11-10 Hitachi Ltd Push-pull circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5013480U (en) * 1973-05-29 1975-02-12
JPS55143809A (en) * 1979-04-25 1980-11-10 Hitachi Ltd Push-pull circuit

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