ATE144661T1 - Klasse-d ausgangsverstärker in bicmos für hörhilfegerät - Google Patents

Klasse-d ausgangsverstärker in bicmos für hörhilfegerät

Info

Publication number
ATE144661T1
ATE144661T1 AT92308830T AT92308830T ATE144661T1 AT E144661 T1 ATE144661 T1 AT E144661T1 AT 92308830 T AT92308830 T AT 92308830T AT 92308830 T AT92308830 T AT 92308830T AT E144661 T1 ATE144661 T1 AT E144661T1
Authority
AT
Austria
Prior art keywords
bipolar
voltage
output
internal
voltage regulator
Prior art date
Application number
AT92308830T
Other languages
English (en)
Inventor
Hakan Ates Gurcan
Original Assignee
Exar Corp
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 Exar Corp filed Critical Exar Corp
Application granted granted Critical
Publication of ATE144661T1 publication Critical patent/ATE144661T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/22—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
    • G05F3/222—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage
    • G05F3/225—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage producing a current or voltage as a predetermined function of the temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
AT92308830T 1991-09-27 1992-09-28 Klasse-d ausgangsverstärker in bicmos für hörhilfegerät ATE144661T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/765,481 US5247581A (en) 1991-09-27 1991-09-27 Class-d bicmos hearing aid output amplifier

Publications (1)

Publication Number Publication Date
ATE144661T1 true ATE144661T1 (de) 1996-11-15

Family

ID=25073670

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92308830T ATE144661T1 (de) 1991-09-27 1992-09-28 Klasse-d ausgangsverstärker in bicmos für hörhilfegerät

Country Status (5)

Country Link
US (1) US5247581A (de)
EP (1) EP0534804B1 (de)
JP (1) JP2502246B2 (de)
AT (1) ATE144661T1 (de)
DE (1) DE69214767T2 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389829A (en) * 1991-09-27 1995-02-14 Exar Corporation Output limiter for class-D BICMOS hearing aid output amplifier
US5332928A (en) * 1992-12-10 1994-07-26 Threepenny Electronics Corporation Battery drain reducer
US5594386A (en) * 1995-04-21 1997-01-14 Sipex Corporation Pulse width modulated amplifier
US5838807A (en) * 1995-10-19 1998-11-17 Mitel Semiconductor, Inc. Trimmable variable compression amplifier for hearing aid
US5815581A (en) * 1995-10-19 1998-09-29 Mitel Semiconductor, Inc. Class D hearing aid amplifier with feedback
US5719528A (en) * 1996-04-23 1998-02-17 Phonak Ag Hearing aid device
US5815102A (en) * 1996-06-12 1998-09-29 Audiologic, Incorporated Delta sigma pwm dac to reduce switching
GB2314474B (en) * 1996-06-21 2001-03-07 Univ Bristol Low power audio device
US6044162A (en) * 1996-12-20 2000-03-28 Sonic Innovations, Inc. Digital hearing aid using differential signal representations
US5963106A (en) * 1998-03-16 1999-10-05 Sonic Innovations, Inc. Double-sided pulse width modulator
US6410997B1 (en) * 1998-04-17 2002-06-25 Sarnoff Corporation Power source for a hearing aid
US6173063B1 (en) * 1998-10-06 2001-01-09 Gn Resound As Output regulator for feedback reduction in hearing aids
US6445321B2 (en) 1999-04-05 2002-09-03 Sonic Innovations, Inc. Hybrid low-pass sigma-delta modulator
US6163287A (en) 1999-04-05 2000-12-19 Sonic Innovations, Inc. Hybrid low-pass sigma-delta modulator
US6313712B1 (en) 2000-06-13 2001-11-06 International Business Machines Corporation Low power crystal oscillator having improved long term and short term stability
EP1251714B2 (de) * 2001-04-12 2015-06-03 Sound Design Technologies Ltd. Digitales Hörgerätsystem
US6633202B2 (en) 2001-04-12 2003-10-14 Gennum Corporation Precision low jitter oscillator circuit
EP1251715B2 (de) * 2001-04-18 2010-12-01 Sound Design Technologies Ltd. Mehrkanal Hörgerät mit Übertragungsmöglichkeiten zwischen den Kanälen
US7076073B2 (en) * 2001-04-18 2006-07-11 Gennum Corporation Digital quasi-RMS detector
US20020191800A1 (en) * 2001-04-19 2002-12-19 Armstrong Stephen W. In-situ transducer modeling in a digital hearing instrument
DK1284587T3 (da) * 2001-08-15 2011-10-31 Sound Design Technologies Ltd Rekonfigurerbar lavenergi-høreindretning
JP3499235B1 (ja) * 2002-08-28 2004-02-23 株式会社フライングモール スイッチング回路及びディジタル電力増幅器
WO2006045147A2 (en) * 2004-10-27 2006-05-04 Extraordinary Technology Pty Ltd Low distortion class-d amplifier
EP1985013A4 (de) * 2006-01-24 2009-02-25 D2Audio Corp Systeme und verfahren zur verbesserung der leistungsfähigkeit in einem digitalen verstärker durch addieren eines ultraschallsignals zu einem eingangsaudiosignal
FR2898442A1 (fr) * 2006-03-13 2007-09-14 St Microelectronics Sa Generateur electronique de signal a rapport cyclique module, compense des variations de sa tension d'alimentation.
US8724831B2 (en) * 2006-09-11 2014-05-13 Semiconductor Components Industries, Llc Amplification circuit and method therefor
US8183894B2 (en) 2007-08-28 2012-05-22 Nxp B.V. Device for and a method of generating signals
JP5264249B2 (ja) * 2008-03-31 2013-08-14 三菱自動車工業株式会社 静電容量式タッチセンサー装置
US7791521B2 (en) * 2008-04-01 2010-09-07 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7701307B2 (en) * 2008-04-01 2010-04-20 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7598895B1 (en) * 2008-04-01 2009-10-06 Silicon Laboratories, Inc. System and method of altering a PWM carrier power spectrum
US8130128B2 (en) 2010-03-30 2012-03-06 Silicon Laboratores Inc. System and method for generating shaped noise
US9009517B2 (en) * 2011-11-16 2015-04-14 Infineon Technologies Ag Embedded voltage regulator trace
CN103401507B (zh) * 2013-08-08 2016-01-20 上海电缆研究所 方波脉冲驱动波形调制电路
JP6604708B2 (ja) * 2013-10-02 2019-11-13 日東電工株式会社 補聴器
US10084983B2 (en) * 2014-04-29 2018-09-25 Fermi Research Alliance, Llc Wafer-scale pixelated detector system
US9557755B2 (en) * 2014-06-13 2017-01-31 Gn Resound A/S Interface circuit for a hearing aid and method
US9263992B1 (en) * 2014-09-15 2016-02-16 Apple Inc. Class D amplifier with variable switching frequency
CN105676717A (zh) * 2014-11-21 2016-06-15 鸿富锦精密工业(武汉)有限公司 音量调节电路及应用该音量调节电路的电子装置
CN112886933B (zh) * 2021-01-13 2022-10-04 上海艾为电子技术股份有限公司 D类音频放大器及其自适应脉宽调整方法、电子设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294456C2 (de) * 1966-08-01 1976-02-05 Siemens AG, 1000 Berlin und 8000 München Miller-integrator
US4360707A (en) * 1980-11-24 1982-11-23 Cts Corporation Digitally driven combination coils for electrodynamic acoustic transducers
DK153350B (da) * 1981-10-20 1988-07-04 Craigwell Ind Ltd Hoereapparat
US4483016A (en) * 1982-09-23 1984-11-13 Hochstein Peter A Audio amplifier
US4689819B1 (en) * 1983-12-08 1996-08-13 Knowles Electronics Inc Class D hearing aid amplifier
US4600891A (en) * 1984-08-21 1986-07-15 Peavey Electronics Corporation Digital audio amplifier having a high power output level and low distortion
JPS61171209A (ja) * 1985-01-25 1986-08-01 Fujitsu Ten Ltd Ｐｗｍ方式パワ−アンプ
JPS63111710A (ja) * 1986-10-29 1988-05-17 Toshiba Corp パルス増幅器の駆動回路
US4882762A (en) * 1988-02-23 1989-11-21 Resound Corporation Multi-band programmable compression system

Also Published As

Publication number Publication date
EP0534804A1 (de) 1993-03-31
US5247581A (en) 1993-09-21
DE69214767T2 (de) 1997-05-28
DE69214767D1 (de) 1996-11-28
JPH05218759A (ja) 1993-08-27
EP0534804B1 (de) 1996-10-23
JP2502246B2 (ja) 1996-05-29

Similar Documents

Publication Publication Date Title
ATE144661T1 (de) Klasse-d ausgangsverstärker in bicmos für hörhilfegerät
EP0663719A3 (de) Analoge Filterschaltung und integrierte Halbleiterschaltungsanordnung mit dieser Schaltung
KR940023027A (ko) 레일-투-레일 공통 모드 범위를 갖는 차동 증폭기
JPS63501468A (ja) Ｃｍｏｓ対ｅｃｌインタフエ−ス回路
EP1150423A3 (de) Differenzverstärker, Halbleiteranordnung, Stromversorgungschaltung und elektronisches Gerät, welches die Anordnung benutzt
JP4315724B2 (ja) バンドギャップ型基準電圧回路のスタートアップ回路
KR930017290A (ko) 광대역증폭회로
KR950005170B1 (ko) 증폭기
JP2000022451A (ja) 信号処理回路装置
EP0613248A1 (de) Integrierte Verstärkerschaltungen
GB1527293A (en) Composite collector load for class a semiconductor amplifier
JPH0421365B2 (de)
JP2749146B2 (ja) ２線式アナログ・デジタル同時信号出力回路
JPH063852B2 (ja) Ｍｏｓ増幅出力回路
AU549414B2 (en) Amplifier suitable for low supply voltage operation
JPS60219803A (ja) 演算増幅器
JPS5717207A (en) Amplifying circuit
JPS6075107A (ja) ホ−ル素子用増幅器
SU1376231A1 (ru) Двухтактный усилитель мощности
SU1385254A2 (ru) Выходной двухтактный каскад
EP0340725A3 (de) ECL/TTL-Pegelumsetzungsschaltung
JPS56153996A (en) Controlling device for motor
JPS5577168A (en) Semiconductor integrated circuit device
JPS63294108A (ja) 演算増幅器
JPH03204013A (ja) ドロッパ型定電圧回路

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties