JP2013524624A5 - - Google Patents

Download PDF

Info

Publication number
JP2013524624A5
JP2013524624A5 JP2013502559A JP2013502559A JP2013524624A5 JP 2013524624 A5 JP2013524624 A5 JP 2013524624A5 JP 2013502559 A JP2013502559 A JP 2013502559A JP 2013502559 A JP2013502559 A JP 2013502559A JP 2013524624 A5 JP2013524624 A5 JP 2013524624A5
Authority
JP
Japan
Prior art keywords
node
coupled
input terminal
mode
comparator
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
JP2013502559A
Other languages
English (en)
Japanese (ja)
Other versions
JP5858981B2 (ja
JP2013524624A (ja
Filing date
Publication date
Priority claimed from US12/750,494 external-priority patent/US8008969B1/en
Application filed filed Critical
Publication of JP2013524624A publication Critical patent/JP2013524624A/ja
Publication of JP2013524624A5 publication Critical patent/JP2013524624A5/ja
Application granted granted Critical
Publication of JP5858981B2 publication Critical patent/JP5858981B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2013502559A 2010-03-30 2010-12-21 シングルサプライｄ級アンプ Active JP5858981B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/750,494 2010-03-30
US12/750,494 US8008969B1 (en) 2010-03-30 2010-03-30 Single supply class-D amplifier
PCT/US2010/061522 WO2011126527A1 (en) 2010-03-30 2010-12-21 Single supply class-d amplifier

Publications (3)

Publication Number Publication Date
JP2013524624A JP2013524624A (ja) 2013-06-17
JP2013524624A5 true JP2013524624A5 (enExample) 2014-01-16
JP5858981B2 JP5858981B2 (ja) 2016-02-10

Family

ID=44486277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013502559A Active JP5858981B2 (ja) 2010-03-30 2010-12-21 シングルサプライｄ級アンプ

Country Status (4)

Country Link
US (1) US8008969B1 (enExample)
JP (1) JP5858981B2 (enExample)
CN (1) CN102844982B (enExample)
WO (1) WO2011126527A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2633621B1 (en) 2010-10-27 2017-08-30 Merus Audio ApS Audio amplifier using multi-level pulse width modulation
CN104348427B (zh) * 2013-07-29 2017-11-24 安凯(广州)微电子技术有限公司 一种d类音频功放电路、功率放大器及音频播放装置
US9654068B2 (en) * 2015-03-13 2017-05-16 Elite Semiconductor Memory Technology Inc. Quaternary/ternary modulation selecting circuit and associated method
US9882587B2 (en) 2015-03-31 2018-01-30 Skyworks Solutions, Inc. Multi-band power amplifier
US11684950B2 (en) 2020-08-13 2023-06-27 Cirrus Logic, Inc. Driver circuitry and operation
US11606642B2 (en) 2020-08-13 2023-03-14 Cirrus Logic, Inc. Driver circuits
US11277129B2 (en) 2020-08-13 2022-03-15 Cirrus Logic, Inc. Driver circuitry and operation
US11990896B2 (en) 2020-08-13 2024-05-21 Cirrus Logic Inc. Driver circuitry and operation

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5963086A (en) * 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US6753729B2 (en) 2000-01-06 2004-06-22 Mitek Corporation Self-oscillating variable frequency closed loop Class D amplifier
US6320460B1 (en) 2000-05-30 2001-11-20 Ivan Meszlenyi Class D amplifier
US7279964B2 (en) * 2003-07-30 2007-10-09 Siemens Aktiengesellschaft Drive circuit, device, and method for suppressing noise, and use
US7279967B2 (en) * 2005-01-12 2007-10-09 Qsc Audio Products, Inc. Multi-channel, multi-power class D amplifier with regulated power supply
JP4791740B2 (ja) 2005-03-14 2011-10-12 旭化成エレクトロニクス株式会社 デジタルスイッチングアンプ
US7400191B2 (en) 2006-04-07 2008-07-15 Manuel De Jesus Rodriguez Switching power amplifier
CN101443998B (zh) * 2006-05-15 2011-05-04 旭化成电子材料元件株式会社 驱动装置
US7339425B2 (en) * 2006-08-03 2008-03-04 Elite Semiconductor Memory Technology, Inc. Class-D audio amplifier with half-swing pulse-width-modulation
JP2008048305A (ja) * 2006-08-21 2008-02-28 Elite Semiconductor Memory Technology Inc ハーフスイングパルス幅変調を備えたｄ級音響増幅器
CN100588115C (zh) * 2006-09-18 2010-02-03 晶豪科技股份有限公司 半波式脉冲宽度调制式d类音频放大器
US7518442B1 (en) * 2006-10-10 2009-04-14 National Semiconductor Corporation Circuit and method for suppressing switching and supply-related errors in a PWM power stage by instantaneous per-pulse feedback
CN200976571Y (zh) * 2006-12-04 2007-11-14 普诚科技股份有限公司 以单电源来推动的音讯放大器
US7551028B1 (en) * 2006-12-11 2009-06-23 Marvell International Ltd. Signal generators for current-mode three-level digital amplifiers
US7733170B2 (en) * 2007-05-09 2010-06-08 Apexone Microelectronics Ltd. Switching amplifier and its modulation process
US7633336B2 (en) * 2007-08-24 2009-12-15 Texas Instruments Incorporated Audio amplifier and methods of generating audio signals
DE112009001227T5 (de) * 2008-05-21 2011-04-07 Silicon Laboratories, Inc., Austin Prädiktive Rückkopplungskompensation für PWM-Schaltverstärker
US7746130B2 (en) * 2008-07-14 2010-06-29 Elite Semiconductor Memory Technology, Inc. Triangular wave generating circuit having synchronization with external clock
JP2010213114A (ja) * 2009-03-11 2010-09-24 Yamaha Corp Ｄ級増幅回路

Similar Documents

Publication Publication Date Title
JP2013524624A5 (enExample)
US10284090B2 (en) Combined boost converter and power converter
JP5858981B2 (ja) シングルサプライｄ級アンプ
JP2013220012A5 (enExample)
CN101127510A (zh) 差分输入d类放大器
IN2014MU01344A (enExample)
US10284155B2 (en) Multi-level class D audio power amplifiers
JP5551294B2 (ja) オーディオ帯域のノイズ成分が小さい三角波を生成するための方法および装置
US10659029B2 (en) Chopped triangular wave PWM quantizer
WO2010025639A1 (zh) 一种功率放大器及其信号处理方法
US20080129370A1 (en) Control circuit and method for a switching amplifier
CN201054779Y (zh) 薄型驻极体静电式扬声器放大装置
JP2012114914A5 (enExample)
TWI406574B (zh) 太陽能駐極體換能器
JP2013521742A5 (enExample)
CN104883144A (zh) 场效应开关管反相器振荡型d类放大器
TWI449437B (zh) 聲音輸出裝置的驅動電路
WO2014134153A1 (en) Direct-drive digital audio amplifier for electrostatic loudspeakers
JP2004031998A (ja) 音響駆動回路
CN204810237U (zh) 场效应开关管反相器振荡型d类放大器
CN202535324U (zh) 开关电路
Hänsler et al. Design Considerations for a Digital Input MEMS Speaker Audio Amplifier with Energy Recovery
KR100626987B1 (ko) 헤드폰 드라이버 및 헤드폰 드라이버 구동방법
JP2016063300A (ja) オーディオアンプ、電子機器、オーディオ信号の再生方法
US20060284672A1 (en) Control circuit and method for a switching amplifier