JP2003133959A5 - - Google Patents

Download PDF

Info

Publication number
JP2003133959A5
JP2003133959A5 JP2001330557A JP2001330557A JP2003133959A5 JP 2003133959 A5 JP2003133959 A5 JP 2003133959A5 JP 2001330557 A JP2001330557 A JP 2001330557A JP 2001330557 A JP2001330557 A JP 2001330557A JP 2003133959 A5 JP2003133959 A5 JP 2003133959A5
Authority
JP
Japan
Prior art keywords
pulse width
width modulation
circuit
digital signal
modulation signal
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.)
Granted
Application number
JP2001330557A
Other languages
English (en)
Japanese (ja)
Other versions
JP3772970B2 (ja
JP2003133959A (ja
Filing date
Publication date
Application filed filed Critical
Priority claimed from JP2001330557A external-priority patent/JP3772970B2/ja
Priority to JP2001330557A priority Critical patent/JP3772970B2/ja
Priority to US10/250,325 priority patent/US7221297B2/en
Priority to EP02802369A priority patent/EP1441447B1/en
Priority to DE60234625T priority patent/DE60234625D1/de
Priority to PCT/JP2002/011014 priority patent/WO2003039007A1/ja
Priority to KR10-2003-7007822A priority patent/KR20040049824A/ko
Publication of JP2003133959A publication Critical patent/JP2003133959A/ja
Publication of JP2003133959A5 publication Critical patent/JP2003133959A5/ja
Publication of JP3772970B2 publication Critical patent/JP3772970B2/ja
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2001330557A 2001-10-29 2001-10-29 Ｄ／ａ変換器および出力増幅回路 Expired - Fee Related JP3772970B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2001330557A JP3772970B2 (ja) 2001-10-29 2001-10-29 Ｄ／ａ変換器および出力増幅回路
PCT/JP2002/011014 WO2003039007A1 (en) 2001-10-29 2002-10-23 D/a converter and output amplifying circuit
EP02802369A EP1441447B1 (en) 2001-10-29 2002-10-23 D/a converter and output amplifying circuit
DE60234625T DE60234625D1 (enExample) 2001-10-29 2002-10-23
US10/250,325 US7221297B2 (en) 2001-10-29 2002-10-23 D/A converter and output amplifying circuit
KR10-2003-7007822A KR20040049824A (ko) 2001-10-29 2002-10-23 디지털 아날로그 변환기 및 출력증폭회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001330557A JP3772970B2 (ja) 2001-10-29 2001-10-29 Ｄ／ａ変換器および出力増幅回路

Publications (3)

Publication Number Publication Date
JP2003133959A JP2003133959A (ja) 2003-05-09
JP2003133959A5 true JP2003133959A5 (enExample) 2005-06-23
JP3772970B2 JP3772970B2 (ja) 2006-05-10

Family

ID=19146269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001330557A Expired - Fee Related JP3772970B2 (ja) 2001-10-29 2001-10-29 Ｄ／ａ変換器および出力増幅回路

Country Status (6)

Country Link
US (1) US7221297B2 (enExample)
EP (1) EP1441447B1 (enExample)
JP (1) JP3772970B2 (enExample)
KR (1) KR20040049824A (enExample)
DE (1) DE60234625D1 (enExample)
WO (1) WO2003039007A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3970642B2 (ja) * 2002-03-07 2007-09-05 セイコーＮｐｃ株式会社 パルス幅変調装置およびｄａコンバータ
JP4154601B2 (ja) * 2003-10-23 2008-09-24 ソニー株式会社 信号変換装置、出力アンプ装置、オーディオ装置および送受信システム
US6911925B1 (en) * 2004-04-02 2005-06-28 Tektronix, Inc. Linearity compensation by harmonic cancellation
JP5019408B2 (ja) * 2004-10-12 2012-09-05 昭彦 米谷 パルス幅変調信号発生装置
WO2007063772A1 (ja) * 2005-12-01 2007-06-07 Pioneer Corporation 信号伝送装置、その方法、および、音響装置
WO2007094255A1 (ja) * 2006-02-14 2007-08-23 Matsushita Electric Industrial Co., Ltd. Ｄ／ａ変換器
US7889109B2 (en) 2006-12-27 2011-02-15 Sharp Kabushiki Kaisha ΔΣ modulation digital-analog converter, digital signal processing method, and AV device
KR101122390B1 (ko) * 2007-02-01 2012-03-23 제이엠 일렉트로닉스 엘티디. 엘엘씨 스위칭 증폭기용 샘플링 주파수를 증가시키기 위한 방법 및 시스템
JP2009005073A (ja) * 2007-06-21 2009-01-08 Nec Electronics Corp デジタルアナログ変換器と歪補正回路
EP2128990B1 (en) * 2008-05-28 2013-03-06 Siemens Aktiengesellschaft A method and circuit for converting an N-bit digital value into an analog value
US8306106B2 (en) 2010-04-27 2012-11-06 Equiphon, Inc. Multi-edge pulse width modulator with non-stationary residue assignment
US8674763B2 (en) * 2011-05-26 2014-03-18 Ansaldo Sts Usa, Inc. Multi-autonomous electronic amplifier
US8890608B2 (en) * 2012-02-29 2014-11-18 Texas Instruments Incorporated Digital input class-D audio amplifier
US20130241663A1 (en) * 2012-03-15 2013-09-19 Texas Instruments Incorporated Pulse width modulation scheme with reduced harmonics and signal images
JP6361030B2 (ja) * 2014-02-18 2018-07-25 パナソニックＩｐマネジメント株式会社 オーディオ信号増幅装置
JP6381960B2 (ja) * 2014-05-07 2018-08-29 ローム株式会社 オーディオアンプ、オーディオ出力回路、オーディオ用集積回路、電子機器、オーディオ信号の増幅方法
JP6932439B2 (ja) * 2017-07-11 2021-09-08 日本無線株式会社 デジタル信号処理装置
KR102535144B1 (ko) * 2022-11-29 2023-05-26 비에스원 주식회사 음량 및 출력의 모니터링이 가능한 앰프

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828667B2 (ja) * 1989-01-30 1996-03-21 日本電信電話株式会社 Ｄ／ａ変換器
JPH0360222A (ja) 1989-07-28 1991-03-15 Sansui Electric Co Ltd オーディオ増幅器
GB9103777D0 (en) * 1991-02-22 1991-04-10 B & W Loudspeakers Analogue and digital convertors
JPH0722861A (ja) 1993-06-30 1995-01-24 Foster Electric Co Ltd パルス幅変調器
US6147634A (en) * 1998-12-15 2000-11-14 Sigmatel, Inc. Method and apparatus for digital to analog conversion with reduced noise
US6198416B1 (en) * 1999-04-16 2001-03-06 Scott R. Velazquez Linearity error compensator
US6292122B1 (en) * 2000-03-04 2001-09-18 Qualcomm, Incorporated Digital-to-analog interface circuit having adjustable time response
US6373334B1 (en) * 2000-06-12 2002-04-16 Cirrus Logic, Inc. Real time correction of a digital PWM amplifier
US6765436B1 (en) * 2002-09-04 2004-07-20 Cirrus Logic, Inc. Power supply based audio compression for digital audio amplifier

Similar Documents

Publication Publication Date Title
JP2003133959A5 (enExample)
KR100890346B1 (ko) 디지털 보정 기능을 갖는 스위칭 증폭기 및 그에 대한 방법
US6657566B1 (en) Conversion of a PCM signal into a UPWM signal
EP1441447A4 (en) D / A TRANSMITTER AND OUTPUT GAIN CIRCUIT
WO2002025817A9 (en) Distortion reduction method and apparatus for linearization of digital pulse width modulation by efficient calculation
JP2006262261A (ja) Ｄ級増幅器
JP2004088430A (ja) Ｄ級増幅器
JP2004088431A (ja) Ｄ級増幅器
EP1642387B1 (en) Method of establishing a pwm-modulated output signal representation
JP2006054800A (ja) 低歪パルス幅変調信号発生器
JP2009005073A (ja) デジタルアナログ変換器と歪補正回路
TW201336224A (zh) 切換放大器系統與其信號失真的抑制方法
US9519277B2 (en) Actuator control apparatus
JP4066893B2 (ja) Ｐｗｍ型ｄ級増幅器
JP2005020554A (ja) デジタルフィルタ
JP3102024B2 (ja) Ｄ／ａ変換方法
JP3125225B2 (ja) デジタル／アナログ変換器
JP3549045B2 (ja) スイッチング増幅器
JP3141523B2 (ja) 有限インパルス応答フィルタ装置
JP2011030142A (ja) Ｄｔｍｆ発生装置、イコライザ装置、およびディザ発生回路
KR100540152B1 (ko) Pcm입력신호를upwm출력신호로변환하는신호변환기및pcm입력신호를upwm출력신호로변환하는신호변환방법
JP3048366B2 (ja) 画質補正回路
JP4554855B2 (ja) デジタル信号処理回路
JP3447863B2 (ja) 映像信号処理装置
JP2018117192A (ja) 情報処理装置、方法、及びプログラム、ｄ／ａ変換装置、電子楽器