JP2012518971A5 - - Google Patents

Download PDF

Info

Publication number
JP2012518971A5
JP2012518971A5 JP2011552161A JP2011552161A JP2012518971A5 JP 2012518971 A5 JP2012518971 A5 JP 2012518971A5 JP 2011552161 A JP2011552161 A JP 2011552161A JP 2011552161 A JP2011552161 A JP 2011552161A JP 2012518971 A5 JP2012518971 A5 JP 2012518971A5
Authority
JP
Japan
Prior art keywords
impedance network
amplifier
amplification system
impedance
output
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
JP2011552161A
Other languages
English (en)
Japanese (ja)
Other versions
JP5670355B2 (ja
JP2012518971A (ja
Filing date
Publication date
Application filed filed Critical
Priority claimed from PCT/US2010/025455 external-priority patent/WO2010099349A1/en
Publication of JP2012518971A publication Critical patent/JP2012518971A/ja
Publication of JP2012518971A5 publication Critical patent/JP2012518971A5/ja
Application granted granted Critical
Publication of JP5670355B2 publication Critical patent/JP5670355B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2011552161A 2009-02-25 2010-02-25 低損失増幅器 Active JP5670355B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15538209P 2009-02-25 2009-02-25
US61/155,382 2009-02-25
PCT/US2010/025455 WO2010099349A1 (en) 2009-02-25 2010-02-25 Low dissipation amplifier

Publications (3)

Publication Number Publication Date
JP2012518971A JP2012518971A (ja) 2012-08-16
JP2012518971A5 true JP2012518971A5 (enExample) 2013-04-04
JP5670355B2 JP5670355B2 (ja) 2015-02-18

Family

ID=42630438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011552161A Active JP5670355B2 (ja) 2009-02-25 2010-02-25 低損失増幅器

Country Status (14)

Country Link
US (3) US8004355B2 (enExample)
EP (1) EP2401811B1 (enExample)
JP (1) JP5670355B2 (enExample)
KR (1) KR101429804B1 (enExample)
CN (1) CN102449903B (enExample)
AU (2) AU2010217899B2 (enExample)
BR (1) BRPI1008588B1 (enExample)
CA (1) CA2753575C (enExample)
ES (1) ES2661600T3 (enExample)
MX (1) MX2011008975A (enExample)
MY (1) MY176605A (enExample)
SG (1) SG173836A1 (enExample)
WO (1) WO2010099349A1 (enExample)
ZA (1) ZA201106733B (enExample)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9444517B2 (en) * 2010-12-01 2016-09-13 Triune Systems, LLC Coupled inductor power transfer system
US8988145B2 (en) * 2011-03-18 2015-03-24 Barbu Popescu High fidelity current dumping audio amplifier with combined feedback-clean feedback
TWI465011B (zh) * 2011-06-02 2014-12-11 Richtek Technology Corp Pwm電壓調節器的控制電路及方法
US8599966B2 (en) * 2011-06-30 2013-12-03 International Business Machines Corporation Coupling system for data receivers
CN103186159B (zh) * 2011-12-28 2014-09-24 澜起科技(上海)有限公司 主从式超前负载补偿稳压装置
CN104335484B (zh) * 2012-04-05 2018-01-09 马维尔国际贸易有限公司 头戴式耳机放大器
US9588533B2 (en) * 2012-07-31 2017-03-07 Entropic Communications, Llc High unity gain bandwidth voltage regulation for integrated circuits
DE102012110310A1 (de) * 2012-10-29 2014-04-30 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Elektronische Schaltung
US9344045B2 (en) * 2013-05-29 2016-05-17 Intel Mobile Communications GmbH Amplifier and method of amplifying a differential signal
CA2820441C (en) * 2013-06-05 2017-01-03 Research In Motion Rf, Inc. Method and apparatus for reducing charge and discharge time of capacitive elements
US9595929B2 (en) * 2013-10-11 2017-03-14 Texas Instruments Incorporated Distributed pole-zero compensation for an amplifier
US10284217B1 (en) 2014-03-05 2019-05-07 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US10785568B2 (en) 2014-06-26 2020-09-22 Cirrus Logic, Inc. Reducing audio artifacts in a system for enhancing dynamic range of audio signal path
EP2963814B1 (en) * 2014-07-03 2018-08-08 Bang & Olufsen A/S Class AB amplifier with bias control
US9596537B2 (en) 2014-09-11 2017-03-14 Cirrus Logic, Inc. Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement
US9959856B2 (en) 2015-06-15 2018-05-01 Cirrus Logic, Inc. Systems and methods for reducing artifacts and improving performance of a multi-path analog-to-digital converter
GB2545487A (en) * 2015-12-18 2017-06-21 Nordic Semiconductor Asa Radio frequency receiver
US9906196B2 (en) 2016-01-18 2018-02-27 Cirrus Logic, Inc. Hybrid switched mode amplifier
US9985587B2 (en) 2016-01-18 2018-05-29 Cirrus Logic, Inc. Switched mode converter with variable common mode voltage buffer
US9880802B2 (en) 2016-01-21 2018-01-30 Cirrus Logic, Inc. Systems and methods for reducing audio artifacts from switching between paths of a multi-path signal processing system
US9893757B2 (en) * 2016-02-11 2018-02-13 Texas Instruments Incorporated Pulse-shaping LDO provides first and second slew-rate increases in amplitude
US10090814B2 (en) 2016-03-16 2018-10-02 Cirrus Logic, Inc. Removal of switching discontinuity in a hybrid switched mode amplifier
US9929664B2 (en) 2016-03-16 2018-03-27 Cirrus Logic, Inc. Prevention of switching discontinuity in a hybrid switched mode amplifier
US9998826B2 (en) 2016-06-28 2018-06-12 Cirrus Logic, Inc. Optimization of performance and power in audio system
US10545561B2 (en) 2016-08-10 2020-01-28 Cirrus Logic, Inc. Multi-path digitation based on input signal fidelity and output requirements
US10263630B2 (en) 2016-08-11 2019-04-16 Cirrus Logic, Inc. Multi-path analog front end with adaptive path
US9929703B1 (en) 2016-09-27 2018-03-27 Cirrus Logic, Inc. Amplifier with configurable final output stage
US9967665B2 (en) 2016-10-05 2018-05-08 Cirrus Logic, Inc. Adaptation of dynamic range enhancement based on noise floor of signal
US10404221B2 (en) * 2016-10-31 2019-09-03 Thx Ltd. Amplifier circuit with reduced feedforward current
US10461709B2 (en) 2016-12-29 2019-10-29 Cirrus Logic, Inc. Amplifier with auxiliary path for maximizing power supply rejection ratio
CN106972835B (zh) 2017-02-28 2020-04-28 华为技术有限公司 电路系统
US10321230B2 (en) 2017-04-07 2019-06-11 Cirrus Logic, Inc. Switching in an audio system with multiple playback paths
US10008992B1 (en) * 2017-04-14 2018-06-26 Cirrus Logic, Inc. Switching in amplifier with configurable final output stage
US9917557B1 (en) 2017-04-17 2018-03-13 Cirrus Logic, Inc. Calibration for amplifier with configurable final output stage
ES2963490T3 (es) * 2017-12-07 2024-03-27 Purifi Aps Un amplificador con compensador con una red de al menos tercer orden
US10547289B2 (en) * 2018-04-25 2020-01-28 Qualcomm Incorporated High order miller N-path filter
US10985713B2 (en) * 2018-08-13 2021-04-20 Apex Microtechnology, Inc. Power amplifier with a tracking power supply
WO2020069191A1 (en) * 2018-09-27 2020-04-02 Thx Ltd. Audio amplifier with integrated filter
US11689166B2 (en) 2021-02-04 2023-06-27 Analog Devices International Unlimited Company Circuitry for reducing distortion over a wide frequency range
CN113629983B (zh) * 2021-07-08 2024-08-23 尤建兴 一种具有高效率稳定输出的电源电路
US12407305B2 (en) 2021-09-14 2025-09-02 Mediatek Inc. Amplifier output stage with DC-shifting circuit for high-speed supply modulator
FR3132399B1 (fr) * 2022-01-31 2025-07-25 Focal Jmlab Amplificateur audio haute performance
US11876493B2 (en) * 2022-02-04 2024-01-16 Qualcomm Incorporated Hybrid class-H/predictive class-G switching amplifier architecture

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909623A (en) * 1957-06-27 1959-10-20 Bell Telephone Labor Inc Interlaced feedback amplifier
US3530244A (en) * 1967-02-13 1970-09-22 Martin G Reiffin Motional feedback amplifier systems
US3551839A (en) * 1968-10-14 1970-12-29 Monsanto Co Automatic ranging circuitry
US3622899A (en) 1969-05-08 1971-11-23 Hewlett Packard Co High-voltage power amplifier circuit
US3760287A (en) * 1971-08-28 1973-09-18 Bell Telephone Labor Inc Digitally controllable variable active rc filter
US3792367A (en) * 1972-05-01 1974-02-12 Bell Telephone Labor Inc Active controllable filter circuit using variable transconductance amplifier
GB1499980A (en) 1974-01-17 1978-02-01 Acoustical Mfg Co Ltd Amplifiers
US4189681A (en) * 1978-09-29 1980-02-19 Neil Brown Instruments Systems, Inc. Bandpass filter having low passband phase shift
US4218660A (en) 1978-11-06 1980-08-19 Carver R W Audio amplifier and method of operating the same
JPS5566110A (en) * 1978-11-10 1980-05-19 Mitsubishi Electric Corp Amplifier circuit
US4337441A (en) 1980-02-11 1982-06-29 Tektronix, Inc. Supply-voltage driver for a differential amplifier
US4445095A (en) 1980-05-19 1984-04-24 Carver R W Audio amplifier
US4367442A (en) 1980-07-10 1983-01-04 Sansui Electric Co., Ltd. Distortion correction circuit for a power amplifier
JPS5816365A (ja) 1981-07-22 1983-01-31 Hitachi Ltd 複合計算機装置
US4429285A (en) * 1981-07-31 1984-01-31 Rca Corporation Frequency-controlled variable-gain amplifiers
US4441068A (en) * 1981-10-22 1984-04-03 Kollmorgen Technologies Corporation Bipolar linear current source driver amplifier for switching loads
NL8104914A (nl) 1981-10-30 1983-05-16 Philips Nv Versterker met signaalafhankelijke voedingsspanningsbron.
GB2117990B (en) * 1982-04-01 1985-11-20 Unisearch Ltd Feed-forward amplifier
US4586002A (en) 1982-09-01 1986-04-29 Carver R W Audio amplifying apparatus and method
US4603282A (en) 1984-04-19 1986-07-29 Magnavox Government And Industrial Electronics Company Amplifier dissipation divertor circuit
US5157353A (en) 1991-05-03 1992-10-20 Thomson Consumer Electronics, Inc. Audio system with transient tracking dual voltage power supply
JP2834000B2 (ja) 1994-06-29 1998-12-09 日本電気株式会社 中間周波増幅回路
AUPN204295A0 (en) * 1995-03-29 1995-04-27 Hildebrandt, William James Amplifying circuit
US5748753A (en) 1996-01-02 1998-05-05 Carver; Robert W. High power audio subwoofer
US6373335B1 (en) 1997-09-18 2002-04-16 Robert W Carver Integrated audio amplifier
US6166605A (en) 1997-09-18 2000-12-26 Carver; Robert W. Integrated audio amplifier
GB2335809B (en) 1998-03-24 2001-09-12 Ericsson Telefon Ab L M Demodulator circuits
US7061313B2 (en) * 2000-05-05 2006-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Dual feedback linear amplifier
IL138844A0 (en) 2000-08-14 2001-10-31 K S Waves Ltd High efficiency power supply
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
FR2814008A1 (fr) * 2000-09-12 2002-03-15 Koninkl Philips Electronics Nv Dispositif d'amplification a linearite optimisee
US6735419B2 (en) 2001-01-18 2004-05-11 Motorola, Inc. High efficiency wideband linear wireless power amplifier
US6636103B2 (en) 2001-04-18 2003-10-21 Analog Devices, Inc. Amplifier system with on-demand power supply boost
US7002409B1 (en) * 2004-02-11 2006-02-21 Marvell International Ltd. Compensation circuit for amplifiers having multiple stages
US7239202B1 (en) * 2004-03-31 2007-07-03 Marvell International Ltd. Variable-gain constant-bandwidth transimpedance amplifier
CN2705949Y (zh) * 2004-05-26 2005-06-22 李相前 低失真放大器
JP2006066998A (ja) * 2004-08-24 2006-03-09 Flying Mole Corp 帰還回路

Similar Documents

Publication Publication Date Title
JP2012518971A5 (enExample)
MY176605A (en) Low dissipation amplifier
CN103428608A (zh) 有源降噪
CN105048989B (zh) 具有共模噪声消减的低通滤波器
JP2017506043A5 (enExample)
CN101783991A (zh) 滤波电路
CN102754334B (zh) 带有反馈阻抗以用于稳定的输出的功率放大器
KR101094705B1 (ko) 차동 증폭기 회로
TW201713032A (zh) 前置放大器
JP2014519265A (ja) 電流バッファ
CN110972044A (zh) 扬声器控制电路及音频播放装置
JPH0683113B2 (ja) 回線等化回路
WO2006021142A1 (fr) Procede de contre-reaction en boucle a double d'echantillonnage et amplificateur a contre-reaction a double echantillonnage
CN103780222B (zh) 中心频率可调节的石英晶体窄带滤波电路
CN206865425U (zh) 具有放大增益的四阶带通滤波器
WO2018061386A1 (ja) D級増幅器
CN106255005A (zh) 一种音频地隔离差分电路及音箱
CN101350598B (zh) 双路反馈单电源音频功率放大器
WO2023202310A1 (zh) 功率放大器及其输入匹配网络
US9225301B2 (en) Amplifier apparatus with controlled negative output impedance
CN103888092B (zh) 一种差动传感器信号放大调理电路
CN113169711B (zh) 具有集成滤波器的音频放大器
CN204392186U (zh) Rc前置放大电路
US9654064B2 (en) Amplifier apparatus with controlled negative output impedance
JP6853064B2 (ja) 増幅回路