GB2272812B - Active filter capable of effectively eliminating common mode noise component - Google Patents
Active filter capable of effectively eliminating common mode noise componentInfo
- Publication number
- GB2272812B GB2272812B GB9323431A GB9323431A GB2272812B GB 2272812 B GB2272812 B GB 2272812B GB 9323431 A GB9323431 A GB 9323431A GB 9323431 A GB9323431 A GB 9323431A GB 2272812 B GB2272812 B GB 2272812B
- Authority
- GB
- United Kingdom
- Prior art keywords
- common mode
- noise component
- active filter
- mode noise
- filter capable
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45098—PI types
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45197—Pl types
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
-
- 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
- H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
- H03H11/0433—Two integrator loop filters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04302525A JP3108551B2 (en) | 1992-11-12 | 1992-11-12 | Filter circuit |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9323431D0 GB9323431D0 (en) | 1994-01-05 |
GB2272812A GB2272812A (en) | 1994-05-25 |
GB2272812B true GB2272812B (en) | 1996-01-10 |
Family
ID=17910018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9323431A Expired - Fee Related GB2272812B (en) | 1992-11-12 | 1993-11-12 | Active filter capable of effectively eliminating common mode noise component |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP3108551B2 (en) |
KR (1) | KR940012818A (en) |
GB (1) | GB2272812B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0633714U (en) * | 1992-10-09 | 1994-05-06 | 関東自動車工業株式会社 | Car door compartment |
US7272187B2 (en) | 2002-11-01 | 2007-09-18 | Matsushita Electric Industrial Co., Ltd. | Filter circuit and radio apparatus |
JP5070918B2 (en) * | 2007-05-01 | 2012-11-14 | 富士通セミコンダクター株式会社 | Analog signal selection circuit |
US8049562B2 (en) * | 2010-01-07 | 2011-11-01 | Texas Instruments Incorporated | Amplifier with improved input resistance and controlled common mode |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832646A (en) * | 1972-10-06 | 1974-08-27 | Westinghouse Electric Corp | Common mode noise suppressing circuit adjustment sequence |
-
1992
- 1992-11-12 JP JP04302525A patent/JP3108551B2/en not_active Expired - Fee Related
-
1993
- 1993-11-09 KR KR1019930023664A patent/KR940012818A/en not_active Application Discontinuation
- 1993-11-12 GB GB9323431A patent/GB2272812B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832646A (en) * | 1972-10-06 | 1974-08-27 | Westinghouse Electric Corp | Common mode noise suppressing circuit adjustment sequence |
Also Published As
Publication number | Publication date |
---|---|
JP3108551B2 (en) | 2000-11-13 |
JPH06152318A (en) | 1994-05-31 |
GB2272812A (en) | 1994-05-25 |
KR940012818A (en) | 1994-06-24 |
GB9323431D0 (en) | 1994-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20111112 |