JPS5289909A - Speaker protection circuit - Google Patents
Speaker protection circuitInfo
- Publication number
- JPS5289909A JPS5289909A JP544376A JP544376A JPS5289909A JP S5289909 A JPS5289909 A JP S5289909A JP 544376 A JP544376 A JP 544376A JP 544376 A JP544376 A JP 544376A JP S5289909 A JPS5289909 A JP S5289909A
- Authority
- JP
- Japan
- Prior art keywords
- protection circuit
- speaker protection
- speaker
- withdrawing
- output
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To simplify circuit constitution by withdrawing the output of an abnormal voltage detection circuit through photo couplers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP544376A JPS5289909A (en) | 1976-01-22 | 1976-01-22 | Speaker protection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP544376A JPS5289909A (en) | 1976-01-22 | 1976-01-22 | Speaker protection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5289909A true JPS5289909A (en) | 1977-07-28 |
Family
ID=11611333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP544376A Pending JPS5289909A (en) | 1976-01-22 | 1976-01-22 | Speaker protection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5289909A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010153948A (en) * | 2008-12-24 | 2010-07-08 | Nec Access Technica Ltd | Speaker protection circuit, circuit for detecting overpower of the same, and switch circuit |
-
1976
- 1976-01-22 JP JP544376A patent/JPS5289909A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010153948A (en) * | 2008-12-24 | 2010-07-08 | Nec Access Technica Ltd | Speaker protection circuit, circuit for detecting overpower of the same, and switch circuit |
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