NL1027403A1 - Werkwijze, schakeling en vermogensversterker voor detecteren van een fout, alsmede werkwijze voor het beschermen van een schakeling in een vermogensversterker tegen optreden van een fout. - Google Patents
Werkwijze, schakeling en vermogensversterker voor detecteren van een fout, alsmede werkwijze voor het beschermen van een schakeling in een vermogensversterker tegen optreden van een fout.Info
- Publication number
- NL1027403A1 NL1027403A1 NL1027403A NL1027403A NL1027403A1 NL 1027403 A1 NL1027403 A1 NL 1027403A1 NL 1027403 A NL1027403 A NL 1027403A NL 1027403 A NL1027403 A NL 1027403A NL 1027403 A1 NL1027403 A1 NL 1027403A1
- Authority
- NL
- Netherlands
- Prior art keywords
- error
- circuit
- power amplifier
- protecting
- occurrence
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/351—Pulse width modulation being used in an amplifying circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20030077280 | 2003-11-03 | ||
KR1020030077280A KR100609266B1 (ko) | 2003-11-03 | 2003-11-03 | 폴트 감지 방법 및 이를 수행하기 위한 회로, 폴트에 따른파워앰프 회로 보호 방법 및 폴트를 감지하는 파워 앰프 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL1027403A1 true NL1027403A1 (nl) | 2005-05-04 |
NL1027403C2 NL1027403C2 (nl) | 2006-03-20 |
Family
ID=36219329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL1027403A NL1027403C2 (nl) | 2003-11-03 | 2004-11-02 | Werkwijze, schakeling en vermogensversterker voor detecteren van een fout, alsmede werkwijze voor het beschermen van een schakeling in een vermogensversterker tegen optreden van een fout. |
Country Status (4)
Country | Link |
---|---|
US (1) | US7327187B2 (nl) |
KR (1) | KR100609266B1 (nl) |
DE (1) | DE102004053467A1 (nl) |
NL (1) | NL1027403C2 (nl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110595609A (zh) * | 2019-09-29 | 2019-12-20 | 国网河南省电力公司南召县供电公司 | 一种通过声音异常快速判断变电设备故障的诊断装置 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060140644A1 (en) * | 2004-12-23 | 2006-06-29 | Paolella Arthur C | High performance, high efficiency fiber optic link for analog and RF systems |
KR100727409B1 (ko) * | 2006-02-02 | 2007-06-13 | 삼성전자주식회사 | 펄스폭 변조 방법 및 이를 이용한 디지털 파워앰프 |
EP1985014B1 (en) * | 2006-02-07 | 2010-07-28 | D2Audio Corporation | Pwm feedback/feed-forward protection |
US7956831B2 (en) * | 2007-05-30 | 2011-06-07 | Honeywell Interntional Inc. | Apparatus, systems, and methods for dimming an active matrix light-emitting diode (LED) display |
TW200926581A (en) * | 2007-12-14 | 2009-06-16 | C Media Electronics Inc | Voltage detection type over-current protection device used in D-class amplifier |
WO2009098609A1 (en) * | 2008-02-04 | 2009-08-13 | Nxp B.V. | Load detector for a switching device |
JP5175142B2 (ja) * | 2008-07-28 | 2013-04-03 | ラピスセミコンダクタ株式会社 | ショート検出回路 |
US8189306B2 (en) * | 2009-03-13 | 2012-05-29 | Raytheon Company | Dynamic grounding system and method |
KR101077768B1 (ko) * | 2010-04-30 | 2011-10-27 | 엘에스산전 주식회사 | 전력계통의 이상 전류 감시 장치 |
CN106412761B (zh) | 2011-12-30 | 2020-02-14 | 意法半导体研发(深圳)有限公司 | 用于汽车音频功率放大器的嵌入式扬声器保护 |
US9088256B2 (en) | 2012-08-08 | 2015-07-21 | Analog Devices, Inc. | Apparatus and methods for amplifier fault protection |
US10148491B2 (en) * | 2014-09-23 | 2018-12-04 | Adtran, Inc. | Iterative algorithm for rapid fault isolation |
CN104408835B (zh) * | 2014-10-21 | 2018-01-12 | 深圳市易联技术有限公司 | 一种应用于pos终端有线音频通信中的抗干扰装置 |
TWI647975B (zh) * | 2015-09-03 | 2019-01-11 | 財團法人工業技術研究院 | 驅動電源產生電路以及驅動電源的產生方法 |
GB2563954A (en) | 2017-06-27 | 2019-01-02 | Cirrus Logic Int Semiconductor Ltd | Audio Circuity |
KR102511201B1 (ko) | 2017-09-27 | 2023-03-17 | 삼성전자주식회사 | 과전압으로부터 소자를 보호하기 위한 전자 회로 및 그것을 포함하는 전자 장치 |
CN107786077B (zh) * | 2017-12-08 | 2024-05-31 | 深圳瑞丰恒激光技术有限公司 | 一种q开关驱动电源控制器故障检测装置及方法 |
JP2019164095A (ja) * | 2018-03-20 | 2019-09-26 | 株式会社東芝 | 半導体集積回路 |
US11120642B2 (en) * | 2018-06-27 | 2021-09-14 | Intel Corporation | Functional safety critical audio system for autonomous and industrial applications |
US11005431B2 (en) * | 2019-04-03 | 2021-05-11 | Analog Devices International Unlimited Company | Power amplifier fault detector |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4724396A (en) * | 1984-08-21 | 1988-02-09 | Peavey Electronics Corporation | Digital audio amplifier |
KR100195928B1 (ko) | 1996-10-24 | 1999-06-15 | 구자홍 | 밀폐형 압축기 |
US5973569A (en) * | 1998-02-25 | 1999-10-26 | National Semiconductor Corporation | Short-circuit protection and over-current modulation to maximize audio amplifier output power |
US6229389B1 (en) | 1998-11-18 | 2001-05-08 | Intersil Corporation | Class D modulator with peak current limit and load impedance sensing circuits |
US6498531B1 (en) | 2000-08-14 | 2002-12-24 | Spectron | Digital class-D audio amplifier |
US6373334B1 (en) | 2000-06-12 | 2002-04-16 | Cirrus Logic, Inc. | Real time correction of a digital PWM amplifier |
JP2002171140A (ja) | 2000-12-01 | 2002-06-14 | Mitsubishi Electric Corp | オーディオ信号増幅出力回路 |
JP2003051724A (ja) | 2001-08-08 | 2003-02-21 | Sony Corp | デジタルパワーアンプ及びデジタルアナログ変換器 |
US6621336B1 (en) * | 2001-12-03 | 2003-09-16 | National Semiconductor Corp. | Over-current protection technique |
KR100498497B1 (ko) * | 2003-05-10 | 2005-07-01 | 삼성전자주식회사 | 이상 상태에서 정상 상태로의 복귀 시에 발생되는 과도응답 현상을 방지하는 d급 파워 증폭기 및 그 방법 |
US7078964B2 (en) * | 2003-10-15 | 2006-07-18 | Texas Instruments Incorporated | Detection of DC output levels from a class D amplifier |
-
2003
- 2003-11-03 KR KR1020030077280A patent/KR100609266B1/ko not_active IP Right Cessation
-
2004
- 2004-11-02 NL NL1027403A patent/NL1027403C2/nl not_active IP Right Cessation
- 2004-11-02 US US10/979,484 patent/US7327187B2/en not_active Expired - Fee Related
- 2004-11-03 DE DE102004053467A patent/DE102004053467A1/de not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110595609A (zh) * | 2019-09-29 | 2019-12-20 | 国网河南省电力公司南召县供电公司 | 一种通过声音异常快速判断变电设备故障的诊断装置 |
Also Published As
Publication number | Publication date |
---|---|
NL1027403C2 (nl) | 2006-03-20 |
KR20050042566A (ko) | 2005-05-10 |
US7327187B2 (en) | 2008-02-05 |
US20050093622A1 (en) | 2005-05-05 |
DE102004053467A1 (de) | 2005-07-07 |
KR100609266B1 (ko) | 2006-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AD1A | A request for search or an international type search has been filed | ||
RD2N | Patents in respect of which a decision has been taken or a report has been made (novelty report) |
Effective date: 20060116 |
|
PD2B | A search report has been drawn up | ||
V1 | Lapsed because of non-payment of the annual fee |
Effective date: 20120601 |