DE69520862D1 - Detektorzelle für logarithmische Verstärker - Google Patents
Detektorzelle für logarithmische VerstärkerInfo
- Publication number
- DE69520862D1 DE69520862D1 DE69520862T DE69520862T DE69520862D1 DE 69520862 D1 DE69520862 D1 DE 69520862D1 DE 69520862 T DE69520862 T DE 69520862T DE 69520862 T DE69520862 T DE 69520862T DE 69520862 D1 DE69520862 D1 DE 69520862D1
- Authority
- DE
- Germany
- Prior art keywords
- logarithmic amplifier
- detector cell
- amplifier detector
- logarithmic
- cell
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/001—Volume compression or expansion in amplifiers without controlling loop
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/317,811 US5489868A (en) | 1994-10-04 | 1994-10-04 | Detector cell for logarithmic amplifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69520862D1 true DE69520862D1 (de) | 2001-06-13 |
DE69520862T2 DE69520862T2 (de) | 2001-09-27 |
Family
ID=23235369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69520862T Expired - Lifetime DE69520862T2 (de) | 1994-10-04 | 1995-10-04 | Detektorzelle für logarithmische Verstärker |
Country Status (4)
Country | Link |
---|---|
US (1) | US5489868A (de) |
EP (1) | EP0706261B1 (de) |
JP (1) | JP4297520B2 (de) |
DE (1) | DE69520862T2 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627461A (en) * | 1993-12-08 | 1997-05-06 | Nec Corporation | Reference current circuit capable of preventing occurrence of a difference collector current which is caused by early voltage effect |
JPH08335881A (ja) * | 1995-06-06 | 1996-12-17 | Mitsubishi Electric Corp | 相補型電流源回路 |
JP2778540B2 (ja) * | 1995-07-18 | 1998-07-23 | 日本電気株式会社 | 対数増幅回路 |
JPH09219630A (ja) * | 1995-12-08 | 1997-08-19 | Nec Corp | 差動回路 |
KR100212055B1 (ko) * | 1996-06-24 | 1999-08-02 | 윤종용 | 이동체 통신시스템의 수신신호세기 검출회로 |
US5923454A (en) * | 1996-10-09 | 1999-07-13 | Motorola, Inc. | Modem method and device for indicating received signal strength and presence for intensity modulated binary-coded wireless data packets with reduced recovery time |
US5754013A (en) * | 1996-12-30 | 1998-05-19 | Honeywell Inc. | Apparatus for providing a nonlinear output in response to a linear input by using linear approximation and for use in a lighting control system |
US5877645A (en) * | 1997-08-08 | 1999-03-02 | Lucent Technologies Inc. | Offset compensation circuit for integrated logarithmic amplifiers |
CN1256808A (zh) * | 1998-02-26 | 2000-06-14 | 皇家菲利浦电子有限公司 | 用于产生交流的幅值相关的指示器信号的装置 |
US6144244A (en) * | 1999-01-29 | 2000-11-07 | Analog Devices, Inc. | Logarithmic amplifier with self-compensating gain for frequency range extension |
US6204719B1 (en) | 1999-02-04 | 2001-03-20 | Analog Devices, Inc. | RMS-to-DC converter with balanced multi-tanh triplet squaring cells |
US6172549B1 (en) | 1999-02-24 | 2001-01-09 | Analog Devices, Inc. | Low supply current RMS-to-DC converter |
US6424221B1 (en) | 2000-06-19 | 2002-07-23 | Advanced Micro Devices, Inc. | Programmable gain amplifier for use in data network |
JP2002118432A (ja) * | 2000-10-06 | 2002-04-19 | Niigata Seimitsu Kk | 電界強度検出回路およびリミッタアンプ |
US6938017B2 (en) * | 2000-12-01 | 2005-08-30 | Hewlett-Packard Development Company, L.P. | Scalable, fraud resistant graphical payment indicia |
US7010283B2 (en) * | 2002-01-16 | 2006-03-07 | Oki Electric Industry Co., Ltd. | Signal waveform detection circuit |
US7310656B1 (en) * | 2002-12-02 | 2007-12-18 | Analog Devices, Inc. | Grounded emitter logarithmic circuit |
US7212041B2 (en) * | 2002-12-23 | 2007-05-01 | Intel Corporation | Weighted multi-input variable gain amplifier |
US7546098B2 (en) * | 2003-05-29 | 2009-06-09 | Analog Devices, Inc. | Control system with selective open-loop operation |
DE10337285B4 (de) * | 2003-08-13 | 2014-02-13 | Intel Mobile Communications GmbH | Verstärkeranordnung |
EP1619812A1 (de) * | 2004-07-22 | 2006-01-25 | Microelectronics Technology Inc. | RSSI mit automatischem Ausgangs-Detektions-Schaltkreis |
US7697909B2 (en) * | 2004-09-01 | 2010-04-13 | National Semiconductor Corporation | Extended range RMS-DC converter |
US7197292B1 (en) | 2004-09-01 | 2007-03-27 | National Semiconductor Corporation | Chopper stabilized analog multiplier |
US7196569B1 (en) | 2005-02-14 | 2007-03-27 | Analog Devices, Inc. | Feedback compensation for logarithmic amplifiers |
WO2008143895A2 (en) * | 2007-05-14 | 2008-11-27 | Hittite Microwave Corporation | Rf detector with crest factor measurement |
US8072205B1 (en) | 2008-04-29 | 2011-12-06 | Analog Devices, Inc. | Peak-to-average measurement with envelope pre-detection |
US8190107B1 (en) | 2008-04-29 | 2012-05-29 | Analog Devices, Inc. | Measurement systems with envelope pre-detection |
US7777552B1 (en) | 2008-04-29 | 2010-08-17 | Analog Devices, Inc. | Logarithmic amplifier with RMS post-processing |
US8422970B1 (en) | 2008-08-28 | 2013-04-16 | National Semiconductor Corporation | RMS power detection with signal-independent dynamics and related apparatus, system, and method |
US9330283B2 (en) | 2013-02-21 | 2016-05-03 | Linear Technology Corporation | High-frequency RMS-DC converter using chopper-stabilized square cells |
JP2019068404A (ja) * | 2017-10-04 | 2019-04-25 | 株式会社村田製作所 | 電力増幅回路 |
CN109617531B (zh) * | 2017-10-04 | 2023-08-25 | 株式会社村田制作所 | 功率放大电路 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668535A (en) * | 1970-01-15 | 1972-06-06 | Varian Associates | Logarithmic rf amplifier employing successive detection |
US4680553A (en) * | 1985-01-18 | 1987-07-14 | Nec Corporation | Intermediate frequency amplifier with signal strength detection circuit |
EP0331246B1 (de) * | 1988-02-29 | 1994-01-19 | Koninklijke Philips Electronics N.V. | Logarithmischer Verstärker |
JP2643516B2 (ja) * | 1990-02-01 | 1997-08-20 | 日本電気株式会社 | 対数増幅回路 |
US4980581A (en) * | 1990-05-21 | 1990-12-25 | Motorola, Inc. | Differential ECL bus tri-state detection receiver |
JP2995886B2 (ja) * | 1991-02-28 | 1999-12-27 | 日本電気株式会社 | 対数増幅回路 |
US5345185A (en) * | 1992-04-14 | 1994-09-06 | Analog Devices, Inc. | Logarithmic amplifier gain stage |
US5298811A (en) * | 1992-08-03 | 1994-03-29 | Analog Devices, Inc. | Synchronous logarithmic amplifier |
US5414313A (en) * | 1993-02-10 | 1995-05-09 | Watkins Johnson Company | Dual-mode logarithmic amplifier having cascaded stages |
JP2827826B2 (ja) * | 1993-07-13 | 1998-11-25 | 日本電気株式会社 | 対数増幅回路 |
-
1994
- 1994-10-04 US US08/317,811 patent/US5489868A/en not_active Expired - Lifetime
-
1995
- 1995-10-04 DE DE69520862T patent/DE69520862T2/de not_active Expired - Lifetime
- 1995-10-04 EP EP95307042A patent/EP0706261B1/de not_active Expired - Lifetime
- 1995-10-04 JP JP28250995A patent/JP4297520B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5489868A (en) | 1996-02-06 |
JP4297520B2 (ja) | 2009-07-15 |
EP0706261B1 (de) | 2001-05-09 |
EP0706261A1 (de) | 1996-04-10 |
JPH08256033A (ja) | 1996-10-01 |
DE69520862T2 (de) | 2001-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |