JPS53131741A - Protective circuit for power amplifier - Google Patents

Protective circuit for power amplifier

Info

Publication number
JPS53131741A
JPS53131741A JP4644777A JP4644777A JPS53131741A JP S53131741 A JPS53131741 A JP S53131741A JP 4644777 A JP4644777 A JP 4644777A JP 4644777 A JP4644777 A JP 4644777A JP S53131741 A JPS53131741 A JP S53131741A
Authority
JP
Japan
Prior art keywords
power amplifier
protective circuit
output step
amplifier
cutting
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
JP4644777A
Other languages
Japanese (ja)
Inventor
Toshihiko Masui
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 JP4644777A priority Critical patent/JPS53131741A/en
Publication of JPS53131741A publication Critical patent/JPS53131741A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To ensure protection of the amplifier from a load short trouble and even under the worst condition by holding the intermediate potential of the output step at the supply voltage or at the level near the earth potential in case the overcurrent occurs at the output step and also cutting off the input signal.
COPYRIGHT: (C)1978,JPO&Japio
JP4644777A 1977-04-22 1977-04-22 Protective circuit for power amplifier Pending JPS53131741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4644777A JPS53131741A (en) 1977-04-22 1977-04-22 Protective circuit for power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4644777A JPS53131741A (en) 1977-04-22 1977-04-22 Protective circuit for power amplifier

Publications (1)

Publication Number Publication Date
JPS53131741A true JPS53131741A (en) 1978-11-16

Family

ID=12747404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4644777A Pending JPS53131741A (en) 1977-04-22 1977-04-22 Protective circuit for power amplifier

Country Status (1)

Country Link
JP (1) JPS53131741A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63266906A (en) * 1988-04-06 1988-11-04 Hitachi Ltd Negative feedback type power amplifying circuit
JPH0221815U (en) * 1988-07-12 1990-02-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63266906A (en) * 1988-04-06 1988-11-04 Hitachi Ltd Negative feedback type power amplifying circuit
JPH0221815U (en) * 1988-07-12 1990-02-14

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