JPS57139797A - Piezo-electric buzzer driving circuit - Google Patents
Piezo-electric buzzer driving circuitInfo
- Publication number
- JPS57139797A JPS57139797A JP56025729A JP2572981A JPS57139797A JP S57139797 A JPS57139797 A JP S57139797A JP 56025729 A JP56025729 A JP 56025729A JP 2572981 A JP2572981 A JP 2572981A JP S57139797 A JPS57139797 A JP S57139797A
- Authority
- JP
- Japan
- Prior art keywords
- piezo
- driving circuit
- buzzer driving
- electric buzzer
- electric
- 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.)
- Granted
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56025729A JPS57139797A (en) | 1981-02-24 | 1981-02-24 | Piezo-electric buzzer driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56025729A JPS57139797A (en) | 1981-02-24 | 1981-02-24 | Piezo-electric buzzer driving circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57139797A true JPS57139797A (en) | 1982-08-28 |
JPH0370238B2 JPH0370238B2 (en) | 1991-11-06 |
Family
ID=12173887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56025729A Granted JPS57139797A (en) | 1981-02-24 | 1981-02-24 | Piezo-electric buzzer driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57139797A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013218075A (en) * | 2012-04-06 | 2013-10-24 | Nihon Ceratec Co Ltd | Alarm buzzer |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53129074A (en) * | 1977-04-18 | 1978-11-10 | Ricoh Watch | Alarm drive device for electronic timepiece |
JPS556313A (en) * | 1978-06-27 | 1980-01-17 | Seiko Instr & Electronics | Piezoelectric speaker driving circuit |
-
1981
- 1981-02-24 JP JP56025729A patent/JPS57139797A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53129074A (en) * | 1977-04-18 | 1978-11-10 | Ricoh Watch | Alarm drive device for electronic timepiece |
JPS556313A (en) * | 1978-06-27 | 1980-01-17 | Seiko Instr & Electronics | Piezoelectric speaker driving circuit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013218075A (en) * | 2012-04-06 | 2013-10-24 | Nihon Ceratec Co Ltd | Alarm buzzer |
Also Published As
Publication number | Publication date |
---|---|
JPH0370238B2 (en) | 1991-11-06 |
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