GB2104273B - Driving circuit of a piezo-electric buzzer - Google Patents

Driving circuit of a piezo-electric buzzer

Info

Publication number
GB2104273B
GB2104273B GB08217580A GB8217580A GB2104273B GB 2104273 B GB2104273 B GB 2104273B GB 08217580 A GB08217580 A GB 08217580A GB 8217580 A GB8217580 A GB 8217580A GB 2104273 B GB2104273 B GB 2104273B
Authority
GB
United Kingdom
Prior art keywords
piezo
driving circuit
electric buzzer
electric
electric element
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
Application number
GB08217580A
Other versions
GB2104273A (en
Inventor
Fumikazu Murakami
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB2104273A publication Critical patent/GB2104273A/en
Application granted granted Critical
Publication of GB2104273B publication Critical patent/GB2104273B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electromechanical Clocks (AREA)

Abstract

A driving circuit of a piezo-electric buzzer comprising: a piezo-electric element (7); a series arrangement of a coil (8) and a unilaterally conductive device (9), the series arrangement (8, 9) being connected in parallel with the piezo- electric element (7); first switch means (5) arranged to be operated by a first signal ( phi 1) so as to supply periodically current to the coil (8); and second switch (6) arranged to be operated by a second signal (???2) so as to discharge periodically a voltage which develops across the piezo-electric element (7) in response to the said current. <IMAGE>
GB08217580A 1981-06-22 1982-06-17 Driving circuit of a piezo-electric buzzer Expired GB2104273B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096137A JPS57210396A (en) 1981-06-22 1981-06-22 Piezo-electric buzzer driving system

Publications (2)

Publication Number Publication Date
GB2104273A GB2104273A (en) 1983-03-02
GB2104273B true GB2104273B (en) 1984-10-24

Family

ID=14156996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08217580A Expired GB2104273B (en) 1981-06-22 1982-06-17 Driving circuit of a piezo-electric buzzer

Country Status (3)

Country Link
JP (1) JPS57210396A (en)
CH (1) CH653849GA3 (en)
GB (1) GB2104273B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3328907A1 (en) * 1983-08-10 1985-02-28 Siemens AG, 1000 Berlin und 8000 München PIEZOELECTRIC SOUND SWITCHING
EP1050860A1 (en) * 1994-07-29 2000-11-08 Kubota Corporation Radio wave receiving signaling device
GB2388994B (en) * 2002-05-23 2004-06-30 Gent Ltd Improvements in and relating to sound emitting devices
CN102157145B (en) * 2010-01-29 2014-05-07 能美防灾株式会社 Audible alarm device and fire alarm system including the same
JP6219087B2 (en) * 2013-07-31 2017-10-25 セイコーインスツル株式会社 Electronic device, portable device, and control method of electronic device

Also Published As

Publication number Publication date
CH653849GA3 (en) 1986-01-31
JPS57210396A (en) 1982-12-23
GB2104273A (en) 1983-03-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee