JPS52129516A - Speaker protecting circuit - Google Patents

Speaker protecting circuit

Info

Publication number
JPS52129516A
JPS52129516A JP4639076A JP4639076A JPS52129516A JP S52129516 A JPS52129516 A JP S52129516A JP 4639076 A JP4639076 A JP 4639076A JP 4639076 A JP4639076 A JP 4639076A JP S52129516 A JPS52129516 A JP S52129516A
Authority
JP
Japan
Prior art keywords
protecting circuit
speaker
speaker protecting
input signal
circuit
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
JP4639076A
Other languages
Japanese (ja)
Inventor
Shigeru Morita
Junichi Tanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4639076A priority Critical patent/JPS52129516A/en
Publication of JPS52129516A publication Critical patent/JPS52129516A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers

Abstract

PURPOSE:To protect a speaker from an overload by operating a switching circuit with a rectifying circuit for an input signal in case the input signal exceeds a predetermined level.
JP4639076A 1976-04-23 1976-04-23 Speaker protecting circuit Pending JPS52129516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4639076A JPS52129516A (en) 1976-04-23 1976-04-23 Speaker protecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4639076A JPS52129516A (en) 1976-04-23 1976-04-23 Speaker protecting circuit

Publications (1)

Publication Number Publication Date
JPS52129516A true JPS52129516A (en) 1977-10-31

Family

ID=12745809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4639076A Pending JPS52129516A (en) 1976-04-23 1976-04-23 Speaker protecting circuit

Country Status (1)

Country Link
JP (1) JPS52129516A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS481759A (en) * 1971-05-17 1973-01-11
JPS5034520A (en) * 1973-07-28 1975-04-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS481759A (en) * 1971-05-17 1973-01-11
JPS5034520A (en) * 1973-07-28 1975-04-02

Similar Documents

Publication Publication Date Title
AU502105B2 (en) Circuit breaker with solid state passive overcurrent sensing device
JPS532087A (en) Input protection circuit
JPS52154622A (en) Circuit for protecting loudspeaker from overload
JPS52129516A (en) Speaker protecting circuit
JPS5299031A (en) Three value input detecting circuit
JPS5330315A (en) Protecting circuit for speaker system against excessive input
JPS52153133A (en) Drawer type switching device
JPS5347722A (en) Key input circuit
JPS5219217A (en) Overcurrent limiting device
JPS51122740A (en) Overcurrent protection cercuit
JPS5315042A (en) Printed antenna
JPS51134848A (en) Frost damage protector
JPS5321731A (en) Inverter device
JPS5315051A (en) Chattering absorbing circuit of contacts
JPS548847A (en) Surge protection circuit
JPS52101449A (en) Circuit for absorbing surge at switching time
JPS522143A (en) Interruption priority chain circuit
JPS52110475A (en) External handling device for circuit breaker
JPS5320542A (en) Protect signal generating circuit for abnormal voltage
JPS5315542A (en) Enclosed switchboard wiht buffer chamber
JPS5231350A (en) Electric protective circuit
JPS52109148A (en) Rush current protective circuit
JPS5295118A (en) Protective circuit
JPS5349905A (en) Surge protection circuit for carrier reprater
JPS5327356A (en) Counter