JPS55102910A - Protector for amplifier - Google Patents

Protector for amplifier

Info

Publication number
JPS55102910A
JPS55102910A JP1078179A JP1078179A JPS55102910A JP S55102910 A JPS55102910 A JP S55102910A JP 1078179 A JP1078179 A JP 1078179A JP 1078179 A JP1078179 A JP 1078179A JP S55102910 A JPS55102910 A JP S55102910A
Authority
JP
Japan
Prior art keywords
detector
temperature
output
amplifier
signal
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
JP1078179A
Other languages
Japanese (ja)
Inventor
Shigeki Washisawa
Takashi Kuniyoshi
Norio Ishiguro
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP1078179A priority Critical patent/JPS55102910A/en
Publication of JPS55102910A publication Critical patent/JPS55102910A/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

Abstract

PURPOSE:To protect an amplifier from an overload or at the time of the occurrence of a short circuit by outputting a high-temperature detector output signal when limiting limiter output is OFF or low-temperature detector output signal when ON to a protection circuit. CONSTITUTION:Temperature detector 1 outputs a detection signal on detecting a high temperature, and temperature detector 2 outputs it on detecting a low temperature. Those signals are sent to detector output selector circuit 3 and when the output of ASO-limiter 4 is OFF due to an overload on an amplifier, the signal of detector 1 is outputted to protection circuit 5. When the output of limiter 4 is ON due to a load short circuit, the signal of detector 2 is outputted to circuit 5. In either case, a semiconductor connection-part temperature is limited to 150 deg.C and below and the amplifier is protected from the overload or at the time of it, so that proper operation can be obtained.
JP1078179A 1979-02-01 1979-02-01 Protector for amplifier Pending JPS55102910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1078179A JPS55102910A (en) 1979-02-01 1979-02-01 Protector for amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1078179A JPS55102910A (en) 1979-02-01 1979-02-01 Protector for amplifier

Publications (1)

Publication Number Publication Date
JPS55102910A true JPS55102910A (en) 1980-08-06

Family

ID=11759869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1078179A Pending JPS55102910A (en) 1979-02-01 1979-02-01 Protector for amplifier

Country Status (1)

Country Link
JP (1) JPS55102910A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127156A (en) * 1984-11-26 1986-06-14 Rohm Co Ltd Heat insulating circuit
JP2015167894A (en) * 2014-03-06 2015-09-28 株式会社鶴見製作所 Solid-liquid separator
JP2017126972A (en) * 2016-01-08 2017-07-20 オンキヨー株式会社 Amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110255A (en) * 1974-02-06 1975-08-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50110255A (en) * 1974-02-06 1975-08-30

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127156A (en) * 1984-11-26 1986-06-14 Rohm Co Ltd Heat insulating circuit
JP2015167894A (en) * 2014-03-06 2015-09-28 株式会社鶴見製作所 Solid-liquid separator
JP2017126972A (en) * 2016-01-08 2017-07-20 オンキヨー株式会社 Amplifier

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