JPS55162609A - Electric power amplifier - Google Patents

Electric power amplifier

Info

Publication number
JPS55162609A
JPS55162609A JP7015279A JP7015279A JPS55162609A JP S55162609 A JPS55162609 A JP S55162609A JP 7015279 A JP7015279 A JP 7015279A JP 7015279 A JP7015279 A JP 7015279A JP S55162609 A JPS55162609 A JP S55162609A
Authority
JP
Japan
Prior art keywords
circuit
power amplifier
amplifier
failure
power
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
JP7015279A
Other languages
Japanese (ja)
Inventor
Shigero Sumida
Isamu Okui
Ryuji Kishi
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.)
TAIYO DENON KK
Toshiba Electric Equipment Corp
Original Assignee
TAIYO DENON KK
Toshiba Electric Equipment Corp
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 TAIYO DENON KK, Toshiba Electric Equipment Corp filed Critical TAIYO DENON KK
Priority to JP7015279A priority Critical patent/JPS55162609A/en
Publication of JPS55162609A publication Critical patent/JPS55162609A/en
Pending 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/526—Circuit arrangements for protecting such amplifiers protecting by using redundant amplifiers

Abstract

PURPOSE:To prevent the failure of other normal amplifiers due to a failure of one amplifier, in case of a plurality of parallel connections, by detecting the overcurrent flowing to the power amplifier element in a power amplifier in failure and making inactive the control circuit. CONSTITUTION:The output is increased by the parallel connection of a plurality of power amplifiers A1...An. When the output from the power amplifier A1 is absent by a failure in the amplifying circuit 3, the output of other normal power amplifier is fed to the secondary winding of the output transformer 8. Thus, the closed circuit of diode 13 amplifier element 7 primary winding of power transformer 8 is formed, and it is in short-circuit in comparison with other normal power amplifier. Accordingly, short circuit current flows to this closed circuit and overcurrent flows to the closed circuit of power supply 5 fuse F1 amplifier element 7 primary winding of transformer 8 fuse F2 power supply 5 to heat up the amplifier element 7. This is detected by the heat sensing switch 17 in the detection circuit, the control circuit 11 is open with the detection circuit 12 to cancell the said short circuit state.
JP7015279A 1979-06-06 1979-06-06 Electric power amplifier Pending JPS55162609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7015279A JPS55162609A (en) 1979-06-06 1979-06-06 Electric power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7015279A JPS55162609A (en) 1979-06-06 1979-06-06 Electric power amplifier

Publications (1)

Publication Number Publication Date
JPS55162609A true JPS55162609A (en) 1980-12-18

Family

ID=13423311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7015279A Pending JPS55162609A (en) 1979-06-06 1979-06-06 Electric power amplifier

Country Status (1)

Country Link
JP (1) JPS55162609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145908A (en) * 1984-12-19 1986-07-03 Matsushita Electric Ind Co Ltd Low frequency amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145908A (en) * 1984-12-19 1986-07-03 Matsushita Electric Ind Co Ltd Low frequency amplifier

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