DE50106265D1 - Acoustic alarm device for a hazard alarm - Google Patents

Acoustic alarm device for a hazard alarm

Info

Publication number
DE50106265D1
DE50106265D1 DE50106265T DE50106265T DE50106265D1 DE 50106265 D1 DE50106265 D1 DE 50106265D1 DE 50106265 T DE50106265 T DE 50106265T DE 50106265 T DE50106265 T DE 50106265T DE 50106265 D1 DE50106265 D1 DE 50106265D1
Authority
DE
Germany
Prior art keywords
alarm
acoustic
hazard
sender
transistor
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
DE50106265T
Other languages
German (de)
Inventor
Max Grimm
Hansjuerg Waelti
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.)
Siemens AG
Original Assignee
Siemens Building Technologies AG
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 Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Application granted granted Critical
Publication of DE50106265D1 publication Critical patent/DE50106265D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • 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
    • H04R27/00—Public address systems
    • 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)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Fire Alarms (AREA)

Abstract

The acoustic alarm sender has a piezo acoustic sender (1) and a circuit driving it with at least one transistor (2,3), an arrangement for generating control pulses (I1,I2) for the transistor(s) as well as an inductance (5) connected in series with the piezo acoustic sender. Two transistors can be provided, each operated with a series of control pulses.
DE50106265T 2001-12-01 2001-12-01 Acoustic alarm device for a hazard alarm Expired - Lifetime DE50106265D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01128683A EP1316931B1 (en) 2001-12-01 2001-12-01 Acoustic device for warning detector

Publications (1)

Publication Number Publication Date
DE50106265D1 true DE50106265D1 (en) 2005-06-23

Family

ID=8179428

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50106265T Expired - Lifetime DE50106265D1 (en) 2001-12-01 2001-12-01 Acoustic alarm device for a hazard alarm

Country Status (5)

Country Link
EP (1) EP1316931B1 (en)
AT (1) ATE295981T1 (en)
DE (1) DE50106265D1 (en)
ES (1) ES2242701T3 (en)
PT (1) PT1316931E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1666166A1 (en) * 2004-12-01 2006-06-07 Asulab S.A. method for generating polyphone sound
EP1746552A1 (en) 2005-07-19 2007-01-24 Siemens Schweiz AG Bi-directional communication between an acoustic hazard detecting unit and at least a further unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH654169GA3 (en) * 1984-04-25 1986-02-14
US4954960A (en) * 1986-11-07 1990-09-04 Alcon Laboratories Linear power control for ultrasonic probe with tuned reactance
IT9004965U1 (en) * 1990-12-07 1992-06-08 G P B Beghelli S R L Ora Begnelli S R L IMPROVEMENT IN INDEPENDENT EMERGENCY LIGHTING SYSTEMS WITH FIRE, HARMFUL GAS, AIR POLLUTION INDICATORS AND SIMILAR
FR2732805B1 (en) * 1995-04-05 1997-06-20 Klaxon Sa PIEZOELECTRIC SOUND WARNING DEVICE, PARTICULARLY FOR VEHICLE EQUIPMENT
US6339377B1 (en) * 1998-11-24 2002-01-15 Kojin Co., Ltd. Article surveillance security system with self-alarm

Also Published As

Publication number Publication date
EP1316931B1 (en) 2005-05-18
EP1316931A1 (en) 2003-06-04
ATE295981T1 (en) 2005-06-15
PT1316931E (en) 2005-09-30
ES2242701T3 (en) 2005-11-16

Similar Documents

Publication Publication Date Title
DE60331221D1 (en) Integrated power circuit with distributed gate driver
ATE479521T1 (en) WORKPIECE POSITIONER
DE60215701D1 (en) LED CONTROL CIRCUIT
ATE409633T1 (en) PERCEIVABLE RETURN
DE602005021888D1 (en) POWER CONTROLS
TW200625259A (en) Driving voltage generating circuit and display device including the same
TWI256051B (en) Internal voltage generating circuit
TW200606791A (en) Display device
DE602005014409D1 (en) Class E power amplifier and corresponding transmission circuit
ATE304108T1 (en) LOCKING DEVICE
DE60113921D1 (en) Portable power tool
TW200715572A (en) Integrated circuit device and electronic instrument
DE50106265D1 (en) Acoustic alarm device for a hazard alarm
ATE469785T1 (en) INDUSTRIAL CONVEYOR VEHICLE
TW200623613A (en) Class AB operation buffer
ATE357980T1 (en) PIEZOELECTRIC ULTRASONIC TRANSDUCER
TW200713318A (en) Output driving device
DE60329806D1 (en) Dispatchable device with graphical display
EP1686690A3 (en) Configurable high/low side driver using a low-side fet pre-driver
DE502006004730D1 (en) Circuit arrangement with a switching transistor, a drive circuit and a supply circuit
DE60336218D1 (en) IMPROVED BATH AND DEVICE THEREFOR
TW200501803A (en) Organic EL panel drive circuit and organic EL display device using the same drive circuit
WO2003107529A3 (en) High voltage-wide band amplifier
ATE334835T1 (en) DEVICE FOR ROTARY ADJUSTMENT OF TWO CONTROLS
TW200723291A (en) Internal voltage generator

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE