DE3578538D1 - Digitaler tonfrequenzverstaerker. - Google Patents

Digitaler tonfrequenzverstaerker.

Info

Publication number
DE3578538D1
DE3578538D1 DE8585305848T DE3578538T DE3578538D1 DE 3578538 D1 DE3578538 D1 DE 3578538D1 DE 8585305848 T DE8585305848 T DE 8585305848T DE 3578538 T DE3578538 T DE 3578538T DE 3578538 D1 DE3578538 D1 DE 3578538D1
Authority
DE
Germany
Prior art keywords
frequency amplifier
tone frequency
digital tone
digital
amplifier
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
DE8585305848T
Other languages
English (en)
Inventor
Wilson E Taylor
Larry E Hand
Brian E Attwood
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.)
Peavey Electronics Corp
Original Assignee
Peavey Electronics 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 Peavey Electronics Corp filed Critical Peavey Electronics Corp
Application granted granted Critical
Publication of DE3578538D1 publication Critical patent/DE3578538D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DE8585305848T 1984-08-21 1985-08-16 Digitaler tonfrequenzverstaerker. Expired - Lifetime DE3578538D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/643,315 US4600891A (en) 1984-08-21 1984-08-21 Digital audio amplifier having a high power output level and low distortion

Publications (1)

Publication Number Publication Date
DE3578538D1 true DE3578538D1 (de) 1990-08-09

Family

ID=24580273

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585305848T Expired - Lifetime DE3578538D1 (de) 1984-08-21 1985-08-16 Digitaler tonfrequenzverstaerker.

Country Status (7)

Country Link
US (1) US4600891A (de)
EP (1) EP0172737B1 (de)
JP (1) JPS6178211A (de)
KR (1) KR860002183A (de)
AU (1) AU590209B2 (de)
DE (1) DE3578538D1 (de)
MX (1) MX158312A (de)

Families Citing this family (47)

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Publication number Priority date Publication date Assignee Title
US4724396A (en) * 1984-08-21 1988-02-09 Peavey Electronics Corporation Digital audio amplifier
EP0457807B1 (de) * 1989-02-09 1997-07-23 Siemens Ltd. Wellenformerzeugung und -steuerung
US4914399A (en) * 1989-03-01 1990-04-03 Minnesota Mining And Manufacturing Company Induction coil driver
GB8905002D0 (en) * 1989-03-04 1989-04-19 Attwood Brian E Audio amplifiers
CA2009775C (en) * 1989-03-04 1994-12-06 Brian E. Attwood Audio amplifier with phase modulated pulse width modulation
US5012199A (en) * 1989-09-08 1991-04-30 St. Louis Music, Inc. Multi-stage musical instrument amplifier having distortion modes
US5200707A (en) * 1990-06-05 1993-04-06 Continental Electronics Corporation Amplifier with multiple switched stages and noise suppression
US5077539A (en) * 1990-12-26 1991-12-31 Apogee Technology, Inc. Switching amplifier
US5247581A (en) * 1991-09-27 1993-09-21 Exar Corporation Class-d bicmos hearing aid output amplifier
US5615229A (en) * 1993-07-02 1997-03-25 Phonic Ear, Incorporated Short range inductively coupled communication system employing time variant modulation
US5523715A (en) * 1995-03-10 1996-06-04 Schrader; Daniel J. Amplifier arrangement and method and voltage controlled amplifier and method
US5657219A (en) * 1995-08-29 1997-08-12 Crown International, Inc. Opposed current power converter
KR100226226B1 (ko) * 1997-02-24 1999-10-15 윤덕용 혼합형 증폭기
US6111968A (en) * 1997-07-08 2000-08-29 Gibson Guitar Corp. Sound production apparatus
DE19731691C1 (de) * 1997-07-23 1998-10-08 Siemens Ag Leistungs-Schaltverstärker
US5905407A (en) * 1997-07-30 1999-05-18 Motorola, Inc. High efficiency power amplifier using combined linear and switching techniques with novel feedback system
GB2349317A (en) * 1998-01-21 2000-10-25 Nokia Mobile Phones Ltd Pulse shaping which compensates for component distortion
US6097249A (en) * 1998-09-02 2000-08-01 Rockford Corporation Method and device for improved class BD amplification having single-terminal alternating-rail dual-sampling topology
US6850623B1 (en) * 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US6107875A (en) * 1998-10-15 2000-08-22 Intersil Corporation Variable frequency class D modulator with built in soft clipping and frequency limiting
US6108182A (en) * 1998-10-30 2000-08-22 Intersil Corporation Overcurrent sensing circuit and self adjusting blanking
US7180758B2 (en) * 1999-07-22 2007-02-20 Mks Instruments, Inc. Class E amplifier with inductive clamp
US6469919B1 (en) * 1999-07-22 2002-10-22 Eni Technology, Inc. Power supplies having protection circuits
US6362683B1 (en) * 1999-07-29 2002-03-26 Tripath Technology, Inc. Break-before-make distortion compensation for a digital amplifier
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
US6661285B1 (en) 2000-10-02 2003-12-09 Holosonic Research Labs Power efficient capacitive load driving device
CN1643784A (zh) * 2002-01-18 2005-07-20 美国技术公司 调制器放大器
EP1632104A2 (de) * 2003-06-09 2006-03-08 American Technology Corporation System und verfahren zum abliefern von audiovisuellem inhalt zusammen mit einer kunden-warteschlange
ES2223302B1 (es) * 2003-08-14 2005-12-16 Universidad Politecnica De Valencia Metodo y dispositivo para la amplificacion y conversion de señales analogicas.
US7564981B2 (en) * 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
US7382184B2 (en) * 2004-10-22 2008-06-03 Creative Technology Ltd Amplifier system and method
US7728659B2 (en) * 2005-01-28 2010-06-01 Nxp B.V. Arrangement for amplifying a PWM input signal
JP4853176B2 (ja) * 2005-09-28 2012-01-11 ヤマハ株式会社 Ｄ級増幅器
ATE521133T1 (de) * 2005-09-28 2011-09-15 Yamaha Corp Klasse d verstärker
US8036402B2 (en) * 2005-12-15 2011-10-11 Harman International Industries, Incorporated Distortion compensation
JP2007235526A (ja) * 2006-03-01 2007-09-13 Matsushita Electric Ind Co Ltd パルス変調型電力増幅器
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
JP2009118447A (ja) * 2007-10-18 2009-05-28 Onkyo Corp スイッチングアンプ
GB2457940B (en) * 2008-02-29 2013-05-01 Nujira Ltd Improved filter for switched mode power supply
DE102008027765B3 (de) * 2008-06-11 2010-05-12 Austriamicrosystems Ag Verstärkeranordnung und Verfahren zur Signalverstärkung
KR100881155B1 (ko) * 2008-07-18 2009-02-13 (주)디라직 다중 전원 혼합형 증폭기
US8344801B2 (en) 2010-04-02 2013-01-01 Mks Instruments, Inc. Variable class characteristic amplifier
TWI460989B (zh) 2011-12-15 2014-11-11 Princeton Technology Corp 能改善音頻信號突波的放大電路
US9214901B2 (en) 2012-07-27 2015-12-15 Mks Instruments, Inc. Wideband AFT power amplifier systems with frequency-based output transformer impedance balancing
EP3281293B1 (de) * 2015-04-09 2019-02-13 Icepower A/S Tastverhältnisbegrenzer
AU2016377688B2 (en) * 2015-12-22 2022-03-10 Thermatool Corp. High frequency power supply system with closely regulated output for heating a workpiece
CN110708030B (zh) * 2019-10-08 2023-04-14 四川泰猷科技有限公司 一种功率放大电路、方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718726B2 (de) * 1973-07-27 1982-04-19
JPS5712349B2 (de) * 1974-06-14 1982-03-10
JPS5818804B2 (ja) * 1974-12-18 1983-04-14 ソニー株式会社 パルス幅変調増巾回路
JPS5854523B2 (ja) * 1976-02-04 1983-12-05 ソニー株式会社 Ｄ級アンプの過入力表示装置
JPS59814Y2 (ja) * 1977-04-22 1984-01-11 ブライアン・ア−ネスト・アトウツド Ｄ級増幅器
JPS586415B2 (ja) * 1978-07-28 1983-02-04 日本電信電話株式会社 デイジタル信号受信装置
JPS5665509A (en) * 1979-11-02 1981-06-03 Pioneer Electronic Corp Pulse width modulating and amplifying circuit
JPS5742214A (en) * 1980-08-27 1982-03-09 Sony Corp Power amplifier
US4509101A (en) * 1982-08-24 1985-04-02 Nippon Gakki Seizo Kabushiki Kaisha Protection circuit for switching power amplifier
JPS60190010A (ja) * 1984-03-12 1985-09-27 Sony Corp パルス幅変調信号による制御回路

Also Published As

Publication number Publication date
EP0172737A3 (en) 1987-09-23
AU4570285A (en) 1986-02-27
US4600891A (en) 1986-07-15
JPS6178211A (ja) 1986-04-21
EP0172737A2 (de) 1986-02-26
AU590209B2 (en) 1989-11-02
EP0172737B1 (de) 1990-07-04
KR860002183A (ko) 1986-03-26
MX158312A (es) 1989-01-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee