CH653849GA3 - - Google Patents

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Publication number
CH653849GA3
CH653849GA3 CH382582A CH382582A CH653849GA3 CH 653849G A3 CH653849G A3 CH 653849GA3 CH 382582 A CH382582 A CH 382582A CH 382582 A CH382582 A CH 382582A CH 653849G A3 CH653849G A3 CH 653849GA3
Authority
CH
Switzerland
Prior art keywords
piezo
electric element
coil
operated
signal
Prior art date
Application number
CH382582A
Other languages
French (fr)
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 filed Critical
Publication of CH653849GA3 publication Critical patent/CH653849GA3/fr

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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)
  • Electromechanical Clocks (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Fire-Detection Mechanisms (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>
CH382582A 1981-06-22 1982-06-22 CH653849GA3 (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 (1)

Publication Number Publication Date
CH653849GA3 true CH653849GA3 (en) 1986-01-31

Family

ID=14156996

Family Applications (1)

Application Number Title Priority Date Filing Date
CH382582A CH653849GA3 (en) 1981-06-22 1982-06-22

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
WO1996004622A1 (en) * 1994-07-29 1996-02-15 Kubota Corporation Burglar alarm apparatus and radio receiver
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
GB2104273B (en) 1984-10-24
JPS57210396A (en) 1982-12-23
GB2104273A (en) 1983-03-02

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