ATE164033T1 - Ausgangsbegrenzer für einen klasse-d bicmos- hörgeräteausgangsverstärker - Google Patents

Ausgangsbegrenzer für einen klasse-d bicmos- hörgeräteausgangsverstärker

Info

Publication number
ATE164033T1
ATE164033T1 AT93307618T AT93307618T ATE164033T1 AT E164033 T1 ATE164033 T1 AT E164033T1 AT 93307618 T AT93307618 T AT 93307618T AT 93307618 T AT93307618 T AT 93307618T AT E164033 T1 ATE164033 T1 AT E164033T1
Authority
AT
Austria
Prior art keywords
pulse
output
limiter
class
pwm
Prior art date
Application number
AT93307618T
Other languages
English (en)
Inventor
Ciro Milazzo
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 ATE164033T1 publication Critical patent/ATE164033T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/35—Electric hearing aids 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Nonlinear Science (AREA)
  • Neurosurgery (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Otolaryngology (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
AT93307618T 1992-09-30 1993-09-24 Ausgangsbegrenzer für einen klasse-d bicmos- hörgeräteausgangsverstärker ATE164033T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/953,901 US5389829A (en) 1991-09-27 1992-09-30 Output limiter for class-D BICMOS hearing aid output amplifier

Publications (1)

Publication Number Publication Date
ATE164033T1 true ATE164033T1 (de) 1998-03-15

Family

ID=25494694

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93307618T ATE164033T1 (de) 1992-09-30 1993-09-24 Ausgangsbegrenzer für einen klasse-d bicmos- hörgeräteausgangsverstärker

Country Status (5)

Country Link
US (2) US5389829A (de)
EP (1) EP0590903B1 (de)
JP (1) JPH06319197A (de)
AT (1) ATE164033T1 (de)
DE (1) DE69317344T2 (de)

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JP5157960B2 (ja) * 2009-02-27 2013-03-06 ヤマハ株式会社 Ｄ級増幅器
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JP5443623B2 (ja) * 2010-02-26 2014-03-19 ヴェーデクス・アクティーセルスカプ 適応バルクバイアス電力管理を備える補聴器
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EP2387149B1 (de) * 2010-04-29 2012-11-07 Dialog Semiconductor GmbH Überstromschutz für einen Klasse-D-Audioverstärker
JP6604708B2 (ja) 2013-10-02 2019-11-13 日東電工株式会社 補聴器
CN103905006B (zh) 2014-03-28 2017-10-24 深圳创维－Rgb电子有限公司 一种具有占空比限制功能的d类功放芯片及其装置
JP7727164B2 (ja) * 2020-02-17 2025-08-21 ミツミ電機株式会社 パルス信号送信回路
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Also Published As

Publication number Publication date
EP0590903B1 (de) 1998-03-11
DE69317344T2 (de) 1998-10-29
DE69317344D1 (de) 1998-04-16
US5506532A (en) 1996-04-09
JPH06319197A (ja) 1994-11-15
EP0590903A1 (de) 1994-04-06
US5389829A (en) 1995-02-14

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee