JPS4943675A - - Google Patents
Info
- Publication number
- JPS4943675A JPS4943675A JP47086480A JP8648072A JPS4943675A JP S4943675 A JPS4943675 A JP S4943675A JP 47086480 A JP47086480 A JP 47086480A JP 8648072 A JP8648072 A JP 8648072A JP S4943675 A JPS4943675 A JP S4943675A
- Authority
- JP
- Japan
- 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.)
- Pending
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/38—Positive-feedback circuit arrangements without negative feedback
-
- 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
-
- 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
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47086480A JPS4943675A (ja) | 1972-08-29 | 1972-08-29 | |
US388155A US3863141A (en) | 1972-08-29 | 1973-08-14 | Frequency analyzing apparatus for use with an eddy current detector |
DE19732343569 DE2343569A1 (de) | 1972-08-29 | 1973-08-29 | Frequenz-analysator |
FR737331185A FR2198143B1 (ja) | 1972-08-29 | 1973-08-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47086480A JPS4943675A (ja) | 1972-08-29 | 1972-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4943675A true JPS4943675A (ja) | 1974-04-24 |
Family
ID=13888121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP47086480A Pending JPS4943675A (ja) | 1972-08-29 | 1972-08-29 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3863141A (ja) |
JP (1) | JPS4943675A (ja) |
DE (1) | DE2343569A1 (ja) |
FR (1) | FR2198143B1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50113681A (ja) * | 1974-02-20 | 1975-09-05 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380734A (en) * | 1980-06-30 | 1983-04-19 | Western Electric Company, Inc. | Measuring magnetic intensity independent of speed in a succession of moving magnetic strips |
DE3750208D1 (de) * | 1986-10-20 | 1994-08-18 | Hitachi Ltd | Vorverstärkerschaltung. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2882488A (en) * | 1954-06-01 | 1959-04-14 | Tuboscope Company | Pipe inspection apparatus |
US3299367A (en) * | 1960-05-31 | 1967-01-17 | Sds Data Systems | Feedback amplifier |
US3643173A (en) * | 1970-05-18 | 1972-02-15 | Gen Electric | Tuneable microelectronic active band-pass filter |
-
1972
- 1972-08-29 JP JP47086480A patent/JPS4943675A/ja active Pending
-
1973
- 1973-08-14 US US388155A patent/US3863141A/en not_active Expired - Lifetime
- 1973-08-29 DE DE19732343569 patent/DE2343569A1/de not_active Ceased
- 1973-08-29 FR FR737331185A patent/FR2198143B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50113681A (ja) * | 1974-02-20 | 1975-09-05 |
Also Published As
Publication number | Publication date |
---|---|
FR2198143B1 (ja) | 1979-02-09 |
DE2343569A1 (de) | 1974-03-21 |
FR2198143A1 (ja) | 1974-03-29 |
US3863141A (en) | 1975-01-28 |