JPH11511935A - 負荷がかかる帰還を備えるブリッジ増幅器 - Google Patents
負荷がかかる帰還を備えるブリッジ増幅器Info
- Publication number
- JPH11511935A JPH11511935A JP10502583A JP50258398A JPH11511935A JP H11511935 A JPH11511935 A JP H11511935A JP 10502583 A JP10502583 A JP 10502583A JP 50258398 A JP50258398 A JP 50258398A JP H11511935 A JPH11511935 A JP H11511935A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- signal
- input
- bridge
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3081—Duplicated single-ended push-pull arrangements, i.e. bridge circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
- H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/375—Circuitry to compensate the offset being present in an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45166—Only one input of the dif amp being used for an input signal
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.第1及び第2増幅器を有するブリッジ増幅器回路であり、前記増幅器の各々 は、出力部の間で接続された負荷に増幅された入力信号を入力するための、信号 入力部、基準入力部及び前記出力部を持つブリッジ増幅器において、帰還経路が 前記第1増幅器の出力部から前記第2増幅器の基準入力部に設けられること、及 び補償手段は前記第2増幅器の基準入力部で信号の変化を軽減するために設けら れることを特徴とするブリッジ増幅器回路。 2.請求項1に記載のブリッジ増幅器回路において、前記帰還手段はインピーダ ンスを有すること、及び前記補償手段は前記入力信号に比例する電流値を持つ電 流源を有することを特徴とするブリッジ増幅器回路。 3.請求項2に記載のブリッジ増幅器回路において、前記インピーダンス値と前 記電流値との積は、前記第1増幅器の出力部によって前記第2増幅器の基準入力 部に入力される信号電圧を十分に補償するための当該基準入力部で電圧を供給す るために選択されることを特徴とするブリッジ増幅器回路。 4.請求項1、2又は3に記載のブリッジ増幅器回路において、前記第1増幅器 の利得は、前記第2増幅器の利得よりも高いことを特徴とするブリッジ増幅器回 路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96201726.5 | 1996-06-21 | ||
EP96201726 | 1996-06-21 | ||
PCT/IB1997/000613 WO1997049176A1 (en) | 1996-06-21 | 1997-05-29 | Bridge amplifier with feedback over the load |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11511935A true JPH11511935A (ja) | 1999-10-12 |
JP4027981B2 JP4027981B2 (ja) | 2007-12-26 |
Family
ID=8224099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50258398A Expired - Fee Related JP4027981B2 (ja) | 1996-06-21 | 1997-05-29 | 負荷がかかる帰還を備えるブリッジ増幅器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5903189A (ja) |
EP (1) | EP0846367B1 (ja) |
JP (1) | JP4027981B2 (ja) |
DE (1) | DE69727771T2 (ja) |
WO (1) | WO1997049176A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1305650B1 (it) * | 1998-12-16 | 2001-05-15 | St Microelectronics Srl | Circuito per assicurare una completa saturazione di entrambi gliamplificatori di un amplificatore a ponte configurato ad ingresso |
US6326841B1 (en) * | 1999-04-16 | 2001-12-04 | Nokia Telecommunications, Oy | Method and apparatus for compensating for loss or RF output power from the isolation port of a hybrid coupler |
JP2003524979A (ja) * | 2000-02-24 | 2003-08-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数の電圧源に接続可能なa/b級出力段を備える信号処理回路 |
US6501332B1 (en) * | 2000-07-13 | 2002-12-31 | Texas Instruments Incorporated | Apparatus and method for electrical signal amplification |
US7167569B1 (en) | 2000-10-25 | 2007-01-23 | National Semiconductor Corporation | Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance |
US6605992B2 (en) * | 2001-06-05 | 2003-08-12 | Intel Corporation | Offset error in linear feedback loops corrected by loop replication |
WO2003041270A1 (en) * | 2001-11-07 | 2003-05-15 | Koninklijke Philips Electronics N.V. | A power amplifier module with distortion compensation |
US11689166B2 (en) | 2021-02-04 | 2023-06-27 | Analog Devices International Unlimited Company | Circuitry for reducing distortion over a wide frequency range |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4283683A (en) * | 1979-05-29 | 1981-08-11 | Motorola Inc. | Audio bridge circuit |
JPS5787216A (en) * | 1980-11-19 | 1982-05-31 | Nippon Gakki Seizo Kk | Amplifying circuit |
JPS59174005A (ja) * | 1983-03-24 | 1984-10-02 | Nippon Gakki Seizo Kk | 電力増幅器 |
NL8600292A (nl) * | 1986-02-07 | 1987-09-01 | Philips Nv | Brugversterker. |
US4721919A (en) * | 1986-12-22 | 1988-01-26 | General Motors Corporation | Class G bridge amplifier with unipolar supplies |
IT1215452B (it) * | 1987-04-30 | 1990-02-14 | Sgs Microelettronica Spa | Amplificatore audio cosiddetto bridge perfezionato. |
IT1243920B (it) * | 1990-11-20 | 1994-06-28 | Sgs Thomson Microelectronics | Amplificatore audio di potenza ad alta efficienza composto da due amplificatori con unica alimentazione. |
US5191297A (en) * | 1991-07-25 | 1993-03-02 | Iomega Corporation | Transconductance amplifier having sensfets which drive a load with linearly proportional current |
-
1997
- 1997-05-29 EP EP97920924A patent/EP0846367B1/en not_active Expired - Lifetime
- 1997-05-29 JP JP50258398A patent/JP4027981B2/ja not_active Expired - Fee Related
- 1997-05-29 DE DE1997627771 patent/DE69727771T2/de not_active Expired - Fee Related
- 1997-05-29 WO PCT/IB1997/000613 patent/WO1997049176A1/en active IP Right Grant
- 1997-06-05 US US08/870,062 patent/US5903189A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4027981B2 (ja) | 2007-12-26 |
DE69727771D1 (de) | 2004-04-01 |
US5903189A (en) | 1999-05-11 |
EP0846367A1 (en) | 1998-06-10 |
EP0846367B1 (en) | 2004-02-25 |
DE69727771T2 (de) | 2005-01-13 |
WO1997049176A1 (en) | 1997-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2665769B2 (ja) | 歪検出を有する高ダイナミクス増幅器段 | |
US20070159224A1 (en) | Duty-cycle correction circuit for differential clocking | |
CN101911479B (zh) | 差分放大器*** | |
WO2001097374A1 (fr) | Circuit amplificateur | |
JPH06244646A (ja) | 増幅回路 | |
US4560946A (en) | Power amplifier | |
JPH11511935A (ja) | 負荷がかかる帰還を備えるブリッジ増幅器 | |
US7633339B2 (en) | Differential amplifier | |
US7907012B2 (en) | Current mirror with low headroom and linear response | |
US6731165B1 (en) | Electronic amplifier | |
WO2000070755A1 (fr) | Amplificateur de signaux et amplificateur differentiel entree/sortie equilibre | |
US10158326B2 (en) | Audio amplifier | |
US5736900A (en) | Method and apparatus for amplifying an electrical signal | |
KR20020059371A (ko) | 듀얼 브릿지 증폭기 | |
US5754066A (en) | Output stage for buffering an electrical signal and method for performing the same | |
KR100416168B1 (ko) | 전력 증폭기 | |
TWI252391B (en) | Circuit device with different input/output common mode voltages | |
JPH05283955A (ja) | 音声信号用増幅器 | |
US4517528A (en) | Amplifier circuit driven by ground isolated power supply | |
JP2004015806A (ja) | シャント・シャント帰還回路で帰還抵抗負荷効果を抑止する方法と装置 | |
JPS61238111A (ja) | 増幅器 | |
JP2001257728A (ja) | 被制御インピーダンス変圧器ラインドライバ | |
JP3076073B2 (ja) | バッファアンプ | |
JPH08250943A (ja) | 平衡増幅回路 | |
CN114900136A (zh) | 用于测量连接到功率放大器的负载的电压和电流感测电路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040528 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040528 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060919 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20061218 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20061218 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20070219 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070309 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070911 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20071011 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101019 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101019 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101019 Year of fee payment: 3 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111019 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111019 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121019 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121019 Year of fee payment: 5 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121019 Year of fee payment: 5 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121019 Year of fee payment: 5 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121019 Year of fee payment: 5 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131019 Year of fee payment: 6 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |