CH641625GA3 - - Google Patents

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Publication number
CH641625GA3
CH641625GA3 CH572478A CH572478A CH641625GA3 CH 641625G A3 CH641625G A3 CH 641625GA3 CH 572478 A CH572478 A CH 572478A CH 572478 A CH572478 A CH 572478A CH 641625G A3 CH641625G A3 CH 641625GA3
Authority
CH
Switzerland
Prior art keywords
coil
diode
piezoelectric vibrator
series
driving circuit
Prior art date
Application number
CH572478A
Other languages
French (fr)
Other versions
CH641625B (en
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
Publication of CH641625B publication Critical patent/CH641625B/en
Application filed filed Critical
Publication of CH641625GA3 publication Critical patent/CH641625GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • 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
    • B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

A diode and a coil are connected in series to the output side of a driving circuit switched ON and OFF upon receipt of a pulse signal and a piezoelectric vibrator is connected in parallel with the series-connected diode and coil. The piezoelectric vibrator is driven by a reverse induced voltage produced in the coil when the driving circuit is switched OFF so as to apply more electric energy for driving the piezoelectric vibrator than would be the case if the diode were omitted.
CH572478A 1977-05-26 1978-05-25 ELECTRICAL CIRCUIT FOR DRIVING A PIEZO-ELECTRIC VIBRATOR. CH641625B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977067936U JPS5744398Y2 (en) 1977-05-26 1977-05-26

Publications (2)

Publication Number Publication Date
CH641625B CH641625B (en)
CH641625GA3 true CH641625GA3 (en) 1984-03-15

Family

ID=13359302

Family Applications (1)

Application Number Title Priority Date Filing Date
CH572478A CH641625B (en) 1977-05-26 1978-05-25 ELECTRICAL CIRCUIT FOR DRIVING A PIEZO-ELECTRIC VIBRATOR.

Country Status (6)

Country Link
US (1) US4232241A (en)
JP (1) JPS5744398Y2 (en)
CH (1) CH641625B (en)
DE (1) DE2823155C2 (en)
FR (1) FR2392537A1 (en)
HK (1) HK28183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1075098A1 (en) * 1999-08-03 2001-02-07 Eta SA Fabriques d'Ebauches Electronic converter of an acoustic signal to a pseudo-digital signal and bidirectional communication method by acoustic waves

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD135792A1 (en) * 1978-04-14 1979-05-23 Herbert Witt POWER CIRCUIT SWITCHING FOR ULTRASONIC ALARM EQUIPMENT
JPS5669690A (en) * 1979-11-12 1981-06-11 Casio Computer Co Ltd System for controlling sound of piezoelectric buzzer
DE3009975C2 (en) * 1980-03-14 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Method for the impulse excitation of a piezoelectric sound transducer
DE3029067C2 (en) * 1980-07-31 1982-07-01 Bolta-Werke Gmbh, 8561 Diepersdorf Device for generating sound, in particular for wake-up or alarm devices
DE3138068A1 (en) * 1980-11-10 1982-07-08 Marukokeihouki Co. Ltd., Nagano PIEZOELECTRIC MULTI-FREQUENCY SOUND GENERATING DEVICE
JPS57211087A (en) * 1981-06-22 1982-12-24 Seiko Instr & Electronics Ltd Boosting circuit of electronic timepiece element
DE3230218A1 (en) * 1982-08-13 1984-02-23 Braun Ag, 6000 Frankfurt Electronic clock or clock radio with an alarm signal of differing loudness level
DE3328907A1 (en) * 1983-08-10 1985-02-28 Siemens AG, 1000 Berlin und 8000 München PIEZOELECTRIC SOUND SWITCHING
GB2296365B (en) * 1993-08-16 1997-01-15 Fulleon Synchrobell Ltd Sounder
GB9317012D0 (en) * 1993-08-16 1993-09-29 Fulleon Ltd Sounder
CH687115B5 (en) 1994-11-08 1997-03-27 Smh Management Services Ag Control circuit for a piezoelectric vibrator.
SG97904A1 (en) 1999-08-04 2003-08-20 Ebauchesfabrik Eta Ag Electronic converter for converting an acoustic signal into a pseudodigital signal, timepiece including such a converter and two-directional communications method via acoustic waves
SG96198A1 (en) * 2000-02-24 2003-05-23 Asulab Sa Portable object such as, in particular, a timepiece, including a piezoelectric transducer for entering data manually
JP2006033679A (en) * 2004-07-21 2006-02-02 Matsushita Electric Ind Co Ltd Piezo-electric element driving circuit, and remote control transmitter using the same
JP6308788B2 (en) * 2013-03-27 2018-04-11 セイコーインスツル株式会社 Electronic device and impact detection method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125295A (en) * 1960-12-30 1964-03-17 Crystal
US3712410A (en) * 1970-02-11 1973-01-23 Schlumberger Technology Corp Acoustic transmitting transducer apparatus
JPS5037367B1 (en) * 1970-03-20 1975-12-02
CH530666A (en) * 1970-04-27 1972-06-30 Bernheim Erwin Oscillator for a time-keeping electrical device, especially a watch
US3820105A (en) * 1970-09-22 1974-06-25 F Assmus Electric signaling device for alarm clocks
US3743868A (en) * 1970-10-12 1973-07-03 Denki Onkyo Co Ltd Driving apparatus for piezoelectric ceramic elements
JPS487067U (en) * 1971-06-05 1973-01-26
SU411918A1 (en) * 1971-11-23 1974-01-25
US3940919A (en) * 1973-10-03 1976-03-02 Citizen Watch Co., Ltd. Electronic wristwatch with electronic sound emitter device
GB1571304A (en) * 1976-02-24 1980-07-16 Lucas Industries Ltd Drive circuit for a piezo electric crystal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1075098A1 (en) * 1999-08-03 2001-02-07 Eta SA Fabriques d'Ebauches Electronic converter of an acoustic signal to a pseudo-digital signal and bidirectional communication method by acoustic waves

Also Published As

Publication number Publication date
FR2392537A1 (en) 1978-12-22
FR2392537B1 (en) 1983-07-18
DE2823155C2 (en) 1985-10-24
US4232241A (en) 1980-11-04
CH641625B (en)
JPS53162675U (en) 1978-12-20
HK28183A (en) 1983-08-26
JPS5744398Y2 (en) 1982-09-30
DE2823155A1 (en) 1978-12-07

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