NL187418C - Actief filter met negatieve impedantieomzetters. - Google Patents
Actief filter met negatieve impedantieomzetters.Info
- Publication number
- NL187418C NL187418C NLAANVRAGE7706851,A NL7706851A NL187418C NL 187418 C NL187418 C NL 187418C NL 7706851 A NL7706851 A NL 7706851A NL 187418 C NL187418 C NL 187418C
- Authority
- NL
- Netherlands
- Prior art keywords
- active filter
- negative impedance
- impedance converters
- converters
- negative
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/02—Arrangements for reducing harmonics or ripples
-
- 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
- H03H11/10—Frequency selective two-port networks using negative impedance converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/36—Networks for connecting several sources or loads, working on the same frequency band, to a common load or source
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB26124/76A GB1585097A (en) | 1976-06-23 | 1976-06-23 | Active filter |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7706851A NL7706851A (nl) | 1977-12-28 |
NL187418B NL187418B (nl) | 1991-04-16 |
NL187418C true NL187418C (nl) | 1991-09-16 |
Family
ID=10238767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7706851,A NL187418C (nl) | 1976-06-23 | 1977-06-21 | Actief filter met negatieve impedantieomzetters. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4147997A (nl) |
JP (1) | JPS5316849A (nl) |
CA (1) | CA1066373A (nl) |
DE (1) | DE2728278A1 (nl) |
FR (1) | FR2356313A1 (nl) |
GB (1) | GB1585097A (nl) |
NL (1) | NL187418C (nl) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4315229A (en) * | 1979-03-02 | 1982-02-09 | The Post Office | Bandstop filters |
US4521702A (en) * | 1982-10-13 | 1985-06-04 | The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration | Reactanceless synthesized impedance bandpass amplifier |
GB8417159D0 (en) * | 1984-07-05 | 1984-08-08 | British Telecomm | Active filters |
US4663597A (en) * | 1985-12-17 | 1987-05-05 | Thielscher Electronic Gmbh | RC coupling filter, especially an input filter, for receivers of centralized ripple control systems |
US5572610A (en) * | 1993-06-15 | 1996-11-05 | Nec Corporation | Waveguide-type optical device and impedance matching method thereof |
JP2002223174A (ja) * | 2001-01-29 | 2002-08-09 | General Res Of Electronics Inc | 同調回路 |
US20040141275A1 (en) * | 2002-08-29 | 2004-07-22 | International Rectifier, Inc. | Active EMI filter for power switching circuit output |
US7808752B2 (en) * | 2004-08-17 | 2010-10-05 | Semiconductor Components Industries, Llc | Integrated passive filter incorporating inductors and ESD protectors |
US7733165B2 (en) * | 2007-02-27 | 2010-06-08 | Infineon Technologies Ag | Circuit arrangement with interference protection |
CN102403714A (zh) * | 2011-11-15 | 2012-04-04 | 上海市电力公司 | 一种用于模块式有源滤波器的直流均压板 |
KR102261356B1 (ko) * | 2014-12-09 | 2021-06-04 | 엘지디스플레이 주식회사 | 전류센싱회로 및 이를 포함하는 유기발광표시장치 |
CN106209017A (zh) * | 2015-05-04 | 2016-12-07 | 南京理工大学 | 一种含变压器的负n平方阻抗变换器 |
US10097216B2 (en) | 2015-12-08 | 2018-10-09 | Skyworks Soultions, Inc. | Active harmonic filters for integrated radio frequency power amplifiers |
CN107733096B (zh) * | 2017-10-10 | 2024-05-07 | 华南理工大学 | 基于负电阻的并联-串联型无线电能传输系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE529361A (nl) * | 1953-06-08 | |||
GB966326A (en) * | 1961-07-17 | 1964-08-12 | Ass Elect Ind | Improvements relating to active electrical one-ports |
US3364435A (en) * | 1965-01-11 | 1968-01-16 | Fairchild Camera Instr Co | Active filter network |
GB1228148A (nl) * | 1967-07-10 | 1971-04-15 | ||
SE348337B (nl) * | 1968-05-10 | 1972-08-28 | B Henoch | |
GB1174709A (en) * | 1968-06-07 | 1969-12-17 | Standard Telephones Cables Ltd | A Symmetrical Polyphase Network |
US3750037A (en) * | 1971-05-20 | 1973-07-31 | Gte Automatic Electric Lab Inc | Inductorless lowpass filter utilizing frequency dependent negative resistors |
US3731218A (en) * | 1971-09-09 | 1973-05-01 | United Aircraft Corp | Active double tuned band pass filter |
DE2314381C3 (de) * | 1973-03-22 | 1979-09-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Als Abzweigschaltung ausgebildetes spulenloses Bandfilterglied |
DE2314382C3 (de) * | 1973-03-22 | 1979-09-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Als Abzweigschaltung ausgebildetes spulenloses Bandfilterglied |
DE2314418C3 (de) * | 1973-03-22 | 1978-12-14 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Spulenloses kanonisches Bandfilter |
-
1976
- 1976-06-23 GB GB26124/76A patent/GB1585097A/en not_active Expired
-
1977
- 1977-06-20 US US05/808,090 patent/US4147997A/en not_active Expired - Lifetime
- 1977-06-21 NL NLAANVRAGE7706851,A patent/NL187418C/nl not_active IP Right Cessation
- 1977-06-22 CA CA281,121A patent/CA1066373A/en not_active Expired
- 1977-06-23 JP JP7490377A patent/JPS5316849A/ja active Granted
- 1977-06-23 DE DE19772728278 patent/DE2728278A1/de not_active Ceased
- 1977-06-23 FR FR7719231A patent/FR2356313A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
GB1585097A (en) | 1981-02-25 |
FR2356313B1 (nl) | 1980-07-04 |
JPS6134288B2 (nl) | 1986-08-07 |
DE2728278A1 (de) | 1978-01-05 |
US4147997A (en) | 1979-04-03 |
CA1066373A (en) | 1979-11-13 |
NL187418B (nl) | 1991-04-16 |
JPS5316849A (en) | 1978-02-16 |
NL7706851A (nl) | 1977-12-28 |
FR2356313A1 (fr) | 1978-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: BRITISH TELECOMMUNICATIONS PLC |
|
SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: BRITISH TELECOMMUNICATIONS PLC |
|
V1 | Lapsed because of non-payment of the annual fee |
Effective date: 19960101 |