ATE144661T1 - Klasse-d ausgangsverstärker in bicmos für hörhilfegerät - Google Patents
Klasse-d ausgangsverstärker in bicmos für hörhilfegerätInfo
- 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
Links
- 238000000034 method Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
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)
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)
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)
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 |
-
1991
- 1991-09-27 US US07/765,481 patent/US5247581A/en not_active Expired - Lifetime
-
1992
- 1992-09-25 JP JP4256681A patent/JP2502246B2/ja not_active Expired - Lifetime
- 1992-09-28 DE DE69214767T patent/DE69214767T2/de not_active Expired - Fee Related
- 1992-09-28 EP EP92308830A patent/EP0534804B1/de not_active Expired - Lifetime
- 1992-09-28 AT AT92308830T patent/ATE144661T1/de not_active IP Right Cessation
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |