JPS57139797A - Piezo-electric buzzer driving circuit - Google Patents

Piezo-electric buzzer driving circuit

Info

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
Application number
JP56025729A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0370238B2 (OSRAM
Inventor
Yoshiaki Katou
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP56025729A priority Critical patent/JPS57139797A/ja
Publication of JPS57139797A publication Critical patent/JPS57139797A/ja
Publication of JPH0370238B2 publication Critical patent/JPH0370238B2/ja
Granted legal-status Critical Current

Links

JP56025729A 1981-02-24 1981-02-24 Piezo-electric buzzer driving circuit Granted JPS57139797A (en)

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 (OSRAM) 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 (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013218075A (ja) * 2012-04-06 2013-10-24 Nihon Ceratec Co Ltd 警報用ブザー

Citations (2)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013218075A (ja) * 2012-04-06 2013-10-24 Nihon Ceratec Co Ltd 警報用ブザー

Also Published As

Publication number Publication date
JPH0370238B2 (OSRAM) 1991-11-06

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