CN1249938C - 电场强度检测电路及限幅放大器 - Google Patents
电场强度检测电路及限幅放大器 Download PDFInfo
- Publication number
- CN1249938C CN1249938C CNB018168388A CN01816838A CN1249938C CN 1249938 C CN1249938 C CN 1249938C CN B018168388 A CNB018168388 A CN B018168388A CN 01816838 A CN01816838 A CN 01816838A CN 1249938 C CN1249938 C CN 1249938C
- Authority
- CN
- China
- Prior art keywords
- differential amplifier
- differential
- signal
- circuit
- transistor
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP308255/00 | 2000-10-06 | ||
JP2000308255A JP2002118432A (ja) | 2000-10-06 | 2000-10-06 | 電界強度検出回路およびリミッタアンプ |
JP308255/2000 | 2000-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1468475A CN1468475A (zh) | 2004-01-14 |
CN1249938C true CN1249938C (zh) | 2006-04-05 |
Family
ID=18788599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018168388A Expired - Fee Related CN1249938C (zh) | 2000-10-06 | 2001-09-26 | 电场强度检测电路及限幅放大器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6774720B2 (zh) |
EP (1) | EP1330057A1 (zh) |
JP (1) | JP2002118432A (zh) |
KR (1) | KR100843756B1 (zh) |
CN (1) | CN1249938C (zh) |
TW (1) | TW519568B (zh) |
WO (1) | WO2002033860A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4070533B2 (ja) * | 2002-07-26 | 2008-04-02 | 富士通株式会社 | 半導体集積回路装置 |
US7339390B2 (en) * | 2005-05-31 | 2008-03-04 | International Business Machines Corporation | Systems and methods for controlling of electro-migration |
US7279975B2 (en) * | 2005-12-22 | 2007-10-09 | Zuoguo Wu | Differential circuit with offset control |
CN101729032B (zh) * | 2008-10-22 | 2014-06-18 | 杭州士兰微电子股份有限公司 | 增益限幅电路 |
DE102016115596B4 (de) | 2016-08-23 | 2018-07-12 | Ferro-Carbon Ent. Co., Ltd. | Messerschleifgerät |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61166207A (ja) * | 1985-01-18 | 1986-07-26 | Nec Corp | 電界強度検出機能付中間周波増幅回路 |
US4680553A (en) | 1985-01-18 | 1987-07-14 | Nec Corporation | Intermediate frequency amplifier with signal strength detection circuit |
JPH0484509A (ja) * | 1990-07-26 | 1992-03-17 | Sharp Corp | リミッタアンプ |
US5489868A (en) * | 1994-10-04 | 1996-02-06 | Analog Devices, Inc. | Detector cell for logarithmic amplifiers |
JPH08125559A (ja) * | 1994-10-26 | 1996-05-17 | Matsushita Electric Ind Co Ltd | Fm受信機 |
DE10060483A1 (de) * | 2000-12-06 | 2002-06-13 | Philips Corp Intellectual Pty | Schaltungsanordnung |
-
2000
- 2000-10-06 JP JP2000308255A patent/JP2002118432A/ja active Pending
-
2001
- 2001-09-26 CN CNB018168388A patent/CN1249938C/zh not_active Expired - Fee Related
- 2001-09-26 KR KR1020037004862A patent/KR100843756B1/ko not_active IP Right Cessation
- 2001-09-26 WO PCT/JP2001/008336 patent/WO2002033860A1/ja active Application Filing
- 2001-09-26 EP EP01972481A patent/EP1330057A1/en not_active Withdrawn
- 2001-10-02 TW TW090124303A patent/TW519568B/zh not_active IP Right Cessation
-
2003
- 2003-04-03 US US10/405,470 patent/US6774720B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1468475A (zh) | 2004-01-14 |
WO2002033860A1 (fr) | 2002-04-25 |
TW519568B (en) | 2003-02-01 |
US20030164734A1 (en) | 2003-09-04 |
EP1330057A1 (en) | 2003-07-23 |
KR20030059804A (ko) | 2003-07-10 |
JP2002118432A (ja) | 2002-04-19 |
US6774720B2 (en) | 2004-08-10 |
KR100843756B1 (ko) | 2008-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101139087B1 (ko) | 고주파 증폭기 | |
CN1934784A (zh) | 放大器的自适应偏置电流电路及该电流产生方法 | |
CN102571227A (zh) | 带直流失调消除功能的幅度检测电路 | |
CN1249938C (zh) | 电场强度检测电路及限幅放大器 | |
US6433640B1 (en) | Methods and apparatus for amplifying a telecommunication signal | |
US7468636B2 (en) | Radio frequency power amplifier | |
CN1243408C (zh) | 多级放大器及集成电路 | |
CN214409119U (zh) | 一种电流采样电路及电子设备 | |
US11791774B2 (en) | Window based supply voltage conditioning circuit for noise filtering | |
CN212588305U (zh) | 一种功率放大电路和检测终端 | |
CN1879293A (zh) | 实现低噪声放大器的方法和设备 | |
CN205596312U (zh) | 麦克风放大电路及电子设备 | |
RU2321156C1 (ru) | Широкополосный усилитель | |
US20020159609A1 (en) | Audio power amplifying apparatus and method | |
CN1302616C (zh) | 通信系统以及包含这种通信系统的装置 | |
US9065408B2 (en) | Voltage controlled amplifier and method of using the same | |
CN212543734U (zh) | 一种功率放大模块以及功率放大器的保护电路 | |
CN1905397A (zh) | 通信设备的rf功率检测电路及具有其的移动通信终端 | |
CN219978394U (zh) | 市电信号采集电路 | |
CN218734207U (zh) | 多端口输入的光电信号处理电路 | |
CN219019009U (zh) | 一种用于音响的模拟音频输入限幅电路 | |
CN204615779U (zh) | 声频功率放大器宽电压自适应压缩装置 | |
CN115562417B (zh) | 压摆率调整电路、方法及芯片 | |
CN116131780B (zh) | 功率放大电路和功率放大方法 | |
CN100466059C (zh) | 一种基于视放负反馈的亮度信号限制电路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NIIGATA SEIMITSU CO., LTD.; RICOH CO., LTD. Free format text: FORMER OWNER: NIIGATA SEIMITSU CO., LTD. Effective date: 20070928 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20070928 Address after: Japan's Niigata Prefecture Co-patentee after: Ricoh Co., Ltd. Patentee after: Niigato Precision Co., Ltd. Address before: Japan's Niigata Prefecture Patentee before: Niigato Precision Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20100926 |