JP2004274726A - パルス幅変調増幅装置 - Google Patents

パルス幅変調増幅装置 Download PDF

Info

Publication number
JP2004274726A
JP2004274726A JP2004014541A JP2004014541A JP2004274726A JP 2004274726 A JP2004274726 A JP 2004274726A JP 2004014541 A JP2004014541 A JP 2004014541A JP 2004014541 A JP2004014541 A JP 2004014541A JP 2004274726 A JP2004274726 A JP 2004274726A
Authority
JP
Japan
Prior art keywords
switching element
power supply
pulse width
width modulation
switching elements
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.)
Pending
Application number
JP2004014541A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004274726A5 (enExample
Inventor
Mitsugi Fukushima
貢 福島
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.)
Denon Ltd
Original Assignee
Denon Ltd
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 Denon Ltd filed Critical Denon Ltd
Priority to JP2004014541A priority Critical patent/JP2004274726A/ja
Publication of JP2004274726A publication Critical patent/JP2004274726A/ja
Publication of JP2004274726A5 publication Critical patent/JP2004274726A5/ja
Pending legal-status Critical Current

Links

Images

Landscapes

  • Amplifiers (AREA)
JP2004014541A 2003-02-17 2004-01-22 パルス幅変調増幅装置 Pending JP2004274726A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004014541A JP2004274726A (ja) 2003-02-17 2004-01-22 パルス幅変調増幅装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003038735 2003-02-17
JP2004014541A JP2004274726A (ja) 2003-02-17 2004-01-22 パルス幅変調増幅装置

Publications (2)

Publication Number Publication Date
JP2004274726A true JP2004274726A (ja) 2004-09-30
JP2004274726A5 JP2004274726A5 (enExample) 2006-10-19

Family

ID=33134039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004014541A Pending JP2004274726A (ja) 2003-02-17 2004-01-22 パルス幅変調増幅装置

Country Status (1)

Country Link
JP (1) JP2004274726A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008283462A (ja) * 2007-05-10 2008-11-20 Yamaha Corp デジタルアンプ装置およびスピーカ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008283462A (ja) * 2007-05-10 2008-11-20 Yamaha Corp デジタルアンプ装置およびスピーカ装置

Similar Documents

Publication Publication Date Title
CN101485082B (zh) D类音频放大器
JP5377578B2 (ja) 高効率オーディオ増幅器システム
JP5377579B2 (ja) 高効率、バランスを保たれた出力増幅器システム
US7646240B2 (en) Class D amplifier
US7446603B2 (en) Differential input Class D amplifier
JP5442636B2 (ja) D級電力増幅器
US7298209B1 (en) Class D amplifier
JP2002223132A (ja) 音声再生装置および方法
TW200926580A (en) Class-D amplifier and multi-level output signal generated method thereof
EP1698050A2 (en) Gate control circuit with soft start/stop function
JP4759050B2 (ja) 駆動装置
CN100553122C (zh) 多通道数字放大器、其信号处理方法及其音频再现系统
US6967527B2 (en) Pulse width modulation amplifier
US7940141B2 (en) PWM signal generation circuit, class-D amplifier and method for driving the same
CN1607721A (zh) 用于减少爆裂噪声的声音信号发生装置及方法
CN101023580A (zh) 音频功率放大器ic和具备该音频功率放大器ic的音频系统
JP2004274726A (ja) パルス幅変調増幅装置
JP2002230905A (ja) 音声再生装置および方法
JP2012049893A (ja) 音声再生回路
JP2007124625A (ja) D級増幅器
JP3163408B2 (ja) オーディオ信号電力増幅回路およびこれを用いるオーディオ装置
JP2004180294A (ja) 電力増幅装置
KR100770747B1 (ko) 디지털 앰프 및 음성 재생 방법
JP5022840B2 (ja) 増幅装置及びこれを用いた音響機器
US8284963B2 (en) Method and apparatus for diminishing mismatch effects between switched signals

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20060831

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060905

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060905

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090122

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090127

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090609