ES2154791T3 - Filtro activo plegado. - Google Patents
Filtro activo plegado.Info
- Publication number
- ES2154791T3 ES2154791T3 ES96307696T ES96307696T ES2154791T3 ES 2154791 T3 ES2154791 T3 ES 2154791T3 ES 96307696 T ES96307696 T ES 96307696T ES 96307696 T ES96307696 T ES 96307696T ES 2154791 T3 ES2154791 T3 ES 2154791T3
- Authority
- ES
- Spain
- Prior art keywords
- transistors
- active filter
- collector
- base electrodes
- stages
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
Landscapes
- Networks Using Active Elements (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- External Artificial Organs (AREA)
- Materials For Photolithography (AREA)
Abstract
UN CIRCUITO DE FILTRO COMPRENDE TRES ETAPAS 260,270,280, CADA UNA TIENE UNA ENTRADA DIFERENCIAL Y UNA SALIDA DIFERENCIAL. LA SALIDA DE LA ETAPA 260 SIRVE COMO ENTRADA DE LA ETAPA 270 Y LA SALIDA DE LA ETAPA 270 SIRVE COMO ENTRADA DE LA ETAPA 280 RESPECTIVAMENTE. LA ETAPA 260 COMPRENDE DOS PARES DE TRANSISTORES 201,202 Y 203,204. UNA SEÑAL DE ENTRADA SE APLICA A LOS ELECTRODOS BASE DE LOS TRANSISTORES 201,204 QUE PRODUCE UN CAMBIO DE CORRIENTE EN LOS TRANSISTORES OPUESTOS 202,203. LOS TRANSISTORES 202,203 TIENEN SUS RESPECTIVOS ELECTRODOS DE BASE Y COLECTOR CONECTADOS JUNTOS. LOS ELECTRODOS DEL COLECTOR DE LOS TRANSISTORES 202,203 CONSTITUYEN LA SALIDA DE LA ETAPA 260. LAS ETAPAS 270 Y 280 TIENEN ESENCIALMENTE LA MISMA ESTRUCTURA QUE LA ETAPA 260. LA ORDENACION OFRECE CAPACIDADES DE ALTA FRECUENCIA DE UNA TENSION DE ALIMENTACION BAJA. EN OTRO VERSION (FIGURA 5) UNA FRECUENCIA DE CORTE SE VARIA BAJO EL CONTROL DE FUENTES DE CORRIENTE CONTROLABLES.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9522365.7A GB9522365D0 (en) | 1995-11-01 | 1995-11-01 | Folded active filter stack |
GBGB9522366.5A GB9522366D0 (en) | 1995-11-01 | 1995-11-01 | Active filter stack |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2154791T3 true ES2154791T3 (es) | 2001-04-16 |
Family
ID=26308028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96307696T Expired - Lifetime ES2154791T3 (es) | 1995-11-01 | 1996-10-24 | Filtro activo plegado. |
Country Status (6)
Country | Link |
---|---|
US (2) | US5912587A (es) |
EP (2) | EP0772294B1 (es) |
JP (2) | JPH09199988A (es) |
AT (2) | ATE202663T1 (es) |
DE (2) | DE69613536T2 (es) |
ES (1) | ES2154791T3 (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100317176B1 (ko) * | 1997-11-28 | 2002-01-16 | 니시무로 타이죠 | 필터회로 |
US6552580B2 (en) * | 1999-05-24 | 2003-04-22 | Level One Communications Inc. | Bias technique for operating point control in multistage circuits |
GB0027069D0 (en) | 2000-11-06 | 2000-12-20 | Lsi Logic Europ Ltd | Transconductance continuous time filter circuit |
JP3644387B2 (ja) * | 2001-01-10 | 2005-04-27 | ソニー株式会社 | フィルタ回路 |
US7161442B2 (en) * | 2003-01-06 | 2007-01-09 | United Microelectronics Corp. | Latch system comprising an action module to increase negative resistance |
US6885245B2 (en) * | 2003-04-08 | 2005-04-26 | Via Technologies, Inc. | Differential amplifier and comparator using the same |
KR100618354B1 (ko) * | 2005-02-04 | 2006-08-31 | 삼성전자주식회사 | 교차 연결된 트랜지스터를 이용하는 초광대역 필터 |
US7408409B2 (en) * | 2006-06-27 | 2008-08-05 | Intel Corporation | Amplifier circuit with cross-coupled cascode transistors |
US7733165B2 (en) * | 2007-02-27 | 2010-06-08 | Infineon Technologies Ag | Circuit arrangement with interference protection |
DE102010026629A1 (de) * | 2010-07-09 | 2012-01-12 | Rohde & Schwarz Gmbh & Co. Kg | Linearer differentieller Verstärker mit hoher Eingangsimpedanz |
US9184957B2 (en) | 2012-12-27 | 2015-11-10 | Intel Corporation | High speed receivers circuits and methods |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6501840A (es) * | 1965-02-13 | 1966-08-15 | ||
NL6908784A (es) * | 1969-06-10 | 1970-12-14 | ||
JPS59181807A (ja) * | 1983-03-31 | 1984-10-16 | Toshiba Corp | トランジスタ増幅器 |
US4514704A (en) * | 1983-08-26 | 1985-04-30 | Curtis Douglas R | Variable filter circuit |
SE457922B (sv) * | 1987-06-18 | 1989-02-06 | Ericsson Telefon Ab L M | Anordning vid aktivt filter samt anvaendning daerav |
US5081423A (en) * | 1988-07-28 | 1992-01-14 | Kabushiki Kaisha Toshiba | Integrator and active filter including integrator with simple phase compensation |
US5225790A (en) * | 1992-02-28 | 1993-07-06 | Digital Equipment Corporation | Tunable wideband active filter |
US5489878A (en) * | 1994-11-23 | 1996-02-06 | Analog Devices | Current-controlled quadrature oscillator based on differential gm /C cells |
-
1996
- 1996-10-24 DE DE69613536T patent/DE69613536T2/de not_active Expired - Lifetime
- 1996-10-24 DE DE69611967T patent/DE69611967T2/de not_active Expired - Lifetime
- 1996-10-24 ES ES96307696T patent/ES2154791T3/es not_active Expired - Lifetime
- 1996-10-24 EP EP96307696A patent/EP0772294B1/en not_active Expired - Lifetime
- 1996-10-24 AT AT96307697T patent/ATE202663T1/de not_active IP Right Cessation
- 1996-10-24 EP EP96307697A patent/EP0772295B1/en not_active Expired - Lifetime
- 1996-10-24 AT AT96307696T patent/ATE199615T1/de active
- 1996-10-29 US US08/739,418 patent/US5912587A/en not_active Expired - Fee Related
- 1996-10-29 US US08/739,419 patent/US5847605A/en not_active Expired - Lifetime
- 1996-10-31 JP JP8304210A patent/JPH09199988A/ja active Pending
- 1996-10-31 JP JP8304209A patent/JPH09214286A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE69613536T2 (de) | 2002-04-11 |
US5847605A (en) | 1998-12-08 |
DE69613536D1 (de) | 2001-08-02 |
US5912587A (en) | 1999-06-15 |
EP0772294B1 (en) | 2001-03-07 |
EP0772294A1 (en) | 1997-05-07 |
JPH09199988A (ja) | 1997-07-31 |
ATE199615T1 (de) | 2001-03-15 |
EP0772295A1 (en) | 1997-05-07 |
JPH09214286A (ja) | 1997-08-15 |
EP0772295B1 (en) | 2001-06-27 |
DE69611967D1 (de) | 2001-04-12 |
ATE202663T1 (de) | 2001-07-15 |
DE69611967T2 (de) | 2001-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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