JPH0370238B2 - - Google Patents

Info

Publication number
JPH0370238B2
JPH0370238B2 JP56025729A JP2572981A JPH0370238B2 JP H0370238 B2 JPH0370238 B2 JP H0370238B2 JP 56025729 A JP56025729 A JP 56025729A JP 2572981 A JP2572981 A JP 2572981A JP H0370238 B2 JPH0370238 B2 JP H0370238B2
Authority
JP
Japan
Prior art keywords
pair
circuit
drive circuit
transistors
waveform
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.)
Expired - Lifetime
Application number
JP56025729A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57139797A (en
Inventor
Yoshiaki Kato
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 Watch Co Ltd
Original Assignee
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 Watch Co Ltd filed Critical Citizen Watch 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 JPS57139797A (en) 1982-08-28
JPH0370238B2 true 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])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6035825B2 (ja) * 2012-04-06 2016-11-30 日本特殊陶業株式会社 警報用ブザー

Family Cites Families (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
JPS5832394B2 (ja) * 1978-06-27 1983-07-12 セイコーインスツルメンツ株式会社 圧電スピ−カ駆動回路

Also Published As

Publication number Publication date
JPS57139797A (en) 1982-08-28

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