TW502549B - Transducer driver - Google Patents

Transducer driver Download PDF

Info

Publication number
TW502549B
TW502549B TW89109991A TW89109991A TW502549B TW 502549 B TW502549 B TW 502549B TW 89109991 A TW89109991 A TW 89109991A TW 89109991 A TW89109991 A TW 89109991A TW 502549 B TW502549 B TW 502549B
Authority
TW
Taiwan
Prior art keywords
output
input
current
terminal
signal
Prior art date
Application number
TW89109991A
Other languages
English (en)
Chinese (zh)
Inventor
Henry Azima
David Gamble
Original Assignee
New Transducers 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 New Transducers Ltd filed Critical New Transducers Ltd
Application granted granted Critical
Publication of TW502549B publication Critical patent/TW502549B/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
TW89109991A 1999-05-19 2000-05-24 Transducer driver TW502549B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9911505.7A GB9911505D0 (en) 1999-05-19 1999-05-19 Transducer driver

Publications (1)

Publication Number Publication Date
TW502549B true TW502549B (en) 2002-09-11

Family

ID=10853652

Family Applications (1)

Application Number Title Priority Date Filing Date
TW89109991A TW502549B (en) 1999-05-19 2000-05-24 Transducer driver

Country Status (8)

Country Link
EP (1) EP1179286A2 (pt)
JP (1) JP2003500992A (pt)
CN (1) CN1350767A (pt)
AU (1) AU4932800A (pt)
BR (1) BR0010246A (pt)
GB (1) GB9911505D0 (pt)
TW (1) TW502549B (pt)
WO (1) WO2000072627A2 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0108076D0 (en) * 2001-03-30 2001-05-23 1 Ltd Capacitive power driver circuit
JP3928728B2 (ja) 2003-09-19 2007-06-13 ソニー株式会社 デジタルアンプ
US7221227B2 (en) * 2005-06-06 2007-05-22 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Methods and apparatus for reducing output current oscillations of a driver provided with circuitry that senses and responds to excessive current draws of an output stage of the driver
JP4793174B2 (ja) * 2005-11-25 2011-10-12 セイコーエプソン株式会社 静電型トランスデューサ、回路定数の設定方法
JP6186135B2 (ja) * 2013-02-26 2017-08-23 京セラ株式会社 Ｄ級アンプおよび電子機器
WO2021253181A1 (en) * 2020-06-15 2021-12-23 Texas Instruments Incorporated Control circuit with overcurrent prediction to drive capacitive load

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092610A (en) * 1977-02-17 1978-05-30 Raytheon Company Modulated carrier amplifying system
US4439738A (en) * 1981-11-12 1984-03-27 Honeywell Inc. Class D pulse width modulated amplifier
US4628275A (en) * 1985-07-29 1986-12-09 Rockwell International Corporation Efficient power amplifier for high capacitive devices
FR2726138A1 (fr) * 1994-10-19 1996-04-26 Philips Composants Etage amplificateur de puissance delivrant un signal rectangulaire d'amplitude controlee
GB2314474B (en) * 1996-06-21 2001-03-07 Univ Bristol Low power audio device
WO1998045939A2 (en) * 1997-04-07 1998-10-15 Koninklijke Philips Electronics N.V. A bridged driving amplifier and a telecommunication device

Also Published As

Publication number Publication date
EP1179286A2 (en) 2002-02-13
CN1350767A (zh) 2002-05-22
BR0010246A (pt) 2002-02-19
GB9911505D0 (en) 1999-07-14
JP2003500992A (ja) 2003-01-07
WO2000072627A3 (en) 2001-03-08
AU4932800A (en) 2000-12-12
WO2000072627A2 (en) 2000-11-30

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