BR9000979A - Circuito amplificador controlado digital,circuito de comutacao controlado digital,amplificador de audio digital e circuito de comutacao digital - Google Patents

Circuito amplificador controlado digital,circuito de comutacao controlado digital,amplificador de audio digital e circuito de comutacao digital

Info

Publication number
BR9000979A
BR9000979A BR909000979A BR9000979A BR9000979A BR 9000979 A BR9000979 A BR 9000979A BR 909000979 A BR909000979 A BR 909000979A BR 9000979 A BR9000979 A BR 9000979A BR 9000979 A BR9000979 A BR 9000979A
Authority
BR
Brazil
Prior art keywords
digital
switching circuit
switching mechanisms
audio amplifier
circuit
Prior art date
Application number
BR909000979A
Other languages
English (en)
Inventor
Brian E Attwood
Larry E Hand
Lee C Santillano
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
Priority claimed from GB898905002A external-priority patent/GB8905002D0/en
Application filed by Peavey Electronics Corp filed Critical Peavey Electronics Corp
Publication of BR9000979A publication Critical patent/BR9000979A/pt

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
BR909000979A 1989-03-04 1990-03-02 Circuito amplificador controlado digital,circuito de comutacao controlado digital,amplificador de audio digital e circuito de comutacao digital BR9000979A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898905002A GB8905002D0 (en) 1989-03-04 1989-03-04 Audio amplifiers
US07/422,518 US4992751A (en) 1989-03-04 1989-10-17 Audio amplifier with phase modulated pulse width modulation

Publications (1)

Publication Number Publication Date
BR9000979A true BR9000979A (pt) 1991-02-19

Family

ID=26295057

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909000979A BR9000979A (pt) 1989-03-04 1990-03-02 Circuito amplificador controlado digital,circuito de comutacao controlado digital,amplificador de audio digital e circuito de comutacao digital

Country Status (8)

Country Link
EP (1) EP0386933B1 (pt)
JP (1) JPH0828626B2 (pt)
AT (1) ATE110198T1 (pt)
BR (1) BR9000979A (pt)
CA (1) CA2009775C (pt)
DE (1) DE69011550T2 (pt)
IE (1) IE64711B1 (pt)
MX (1) MX173212B (pt)

Families Citing this family (10)

* 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
US5225789A (en) * 1992-04-17 1993-07-06 Northern Telecom Limited Four quadrant current mode switching amplifier
US5517154A (en) * 1995-01-13 1996-05-14 Tektronix, Inc. Split-path linear isolation circuit apparatus and method
US5986498A (en) * 1998-04-14 1999-11-16 Harman International Industries, Incorporated Audio direct from power supply
US6392476B1 (en) 2000-03-14 2002-05-21 Harman International Industries, Incorporated System and method of producing direct audio from a power supply
AU2002348890A1 (en) 2001-11-23 2003-06-10 Koninklijke Philips Electronics N.V. Switched mode power amplifier
DE102008026846A1 (de) * 2008-06-05 2009-12-24 Continental Automotive Gmbh Schaltungsanordnung
US8390373B2 (en) * 2010-06-08 2013-03-05 MUSIC Group IP Ltd. Ultra-high efficiency switching power inverter and power amplifier
CN105075091B (zh) * 2012-11-28 2018-03-02 广东锐顶电力技术有限公司 超高效率单级隔离式开关功率放大器
US9306516B2 (en) * 2012-12-01 2016-04-05 Guangdong Redx Electrical Technology Limited Single stage switching power amplifier with bidirectional energy flow

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409817A (en) * 1965-08-10 1968-11-05 Varo Phase demodulated high frequency inverter
JPS5758864B2 (pt) * 1974-03-28 1982-12-11 Sony Corp
US4479175A (en) * 1982-08-13 1984-10-23 Honeywell Inc. Phase modulated switchmode power amplifier and waveform generator
US4573018A (en) * 1984-04-19 1986-02-25 Fred Mirow Switching amplifier system
US4600891A (en) * 1984-08-21 1986-07-15 Peavey Electronics Corporation Digital audio amplifier having a high power output level and low distortion
JPS6238885A (ja) * 1985-08-13 1987-02-19 Taiho Kogyo Co Ltd パワ−ステアリング用オイルポンプ

Also Published As

Publication number Publication date
EP0386933A3 (en) 1991-02-27
IE900757L (en) 1990-09-04
JPH02272903A (ja) 1990-11-07
JPH0828626B2 (ja) 1996-03-21
EP0386933B1 (en) 1994-08-17
IE64711B1 (en) 1995-08-23
DE69011550D1 (de) 1994-09-22
ATE110198T1 (de) 1994-09-15
EP0386933A2 (en) 1990-09-12
CA2009775A1 (en) 1990-09-04
DE69011550T2 (de) 1995-04-13
MX173212B (es) 1994-02-09
CA2009775C (en) 1994-12-06

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 02/03/2010