BE491203A - - Google Patents
Info
- Publication number
- BE491203A BE491203A BE491203DA BE491203A BE 491203 A BE491203 A BE 491203A BE 491203D A BE491203D A BE 491203DA BE 491203 A BE491203 A BE 491203A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
- H03B5/1221—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising multiple amplification stages connected in cascade
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- 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
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58684A US2585077A (en) | 1948-11-06 | 1948-11-06 | Control of impedance of semiconductor amplifier circuits |
| US127439A US2550518A (en) | 1948-11-06 | 1949-11-15 | Control of impedance of semiconductor amplifier circuits |
| US127440A US2541322A (en) | 1948-11-06 | 1949-11-15 | Control of impedance of semiconductor amplifier circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE491203A true BE491203A (US20080293856A1-20081127-C00150.png) |
Family
ID=27369524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE491203D BE491203A (US20080293856A1-20081127-C00150.png) | 1948-11-06 |
Country Status (6)
Families Citing this family (68)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2660624A (en) * | 1949-02-24 | 1953-11-24 | Rca Corp | High input impedance semiconductor amplifier |
| US2647957A (en) * | 1949-06-01 | 1953-08-04 | Bell Telephone Labor Inc | Transistor circuit |
| US2662122A (en) * | 1949-06-01 | 1953-12-08 | Bell Telephone Labor Inc | Two-way transistor electrical transmission system |
| US2662124A (en) * | 1949-06-01 | 1953-12-08 | Bell Telephone Labor Inc | Transistor amplifier circuit |
| NL148405B (nl) * | 1949-08-30 | Oerlikon Buehrle Ag | Legering van een vuurwapen op een licht voertuig. | |
| US2691074A (en) * | 1949-08-31 | 1954-10-05 | Rca Corp | Amplifier having frequency responsive variable gain |
| US2675433A (en) * | 1950-04-27 | 1954-04-13 | Rca Corp | Degenerative amplifier |
| US2708720A (en) * | 1950-06-07 | 1955-05-17 | Bell Telephone Labor Inc | Transistor trigger circuit |
| US2691075A (en) * | 1950-06-27 | 1954-10-05 | Rca Corp | Transistor amplifier with high undistorted output |
| US2663766A (en) * | 1950-06-28 | 1953-12-22 | Bell Telephone Labor Inc | Transistor amplifier with conjugate input and output circuits |
| US2644859A (en) * | 1950-08-05 | 1953-07-07 | Rca Corp | Stabilized semiconductor amplifier circuits |
| BE505739A (US20080293856A1-20081127-C00150.png) * | 1950-09-12 | |||
| US2663796A (en) * | 1950-11-09 | 1953-12-22 | Bell Telephone Labor Inc | Low-input impedance transistor circuits |
| US2666817A (en) * | 1950-11-09 | 1954-01-19 | Bell Telephone Labor Inc | Transistor amplifier and power supply therefor |
| US2662123A (en) * | 1951-02-24 | 1953-12-08 | Bell Telephone Labor Inc | Electrical transmission system including bilateral transistor amplifier |
| US2691077A (en) * | 1951-03-31 | 1954-10-05 | Rca Corp | Transistor power amplifier |
| US2794863A (en) * | 1951-07-20 | 1957-06-04 | Bell Telephone Labor Inc | Semiconductor translating device and circuit |
| US2733303A (en) * | 1951-08-02 | 1956-01-31 | Koenig | |
| NL85273C (US20080293856A1-20081127-C00150.png) * | 1951-09-13 | |||
| US2680160A (en) * | 1951-09-15 | 1954-06-01 | Bell Telephone Labor Inc | Bias circuit for transistor amplifiers |
| US2730576A (en) * | 1951-09-17 | 1956-01-10 | Bell Telephone Labor Inc | Miniaturized transistor amplifier circuit |
| US2757243A (en) * | 1951-09-17 | 1956-07-31 | Bell Telephone Labor Inc | Transistor circuits |
| BE518900A (US20080293856A1-20081127-C00150.png) * | 1952-06-23 | |||
| US2728053A (en) * | 1952-08-26 | 1955-12-20 | Bell Telephone Labor Inc | Transmission network using transistors |
| US2885494A (en) * | 1952-09-26 | 1959-05-05 | Bell Telephone Labor Inc | Temperature compensated transistor amplifier |
| BE524278A (US20080293856A1-20081127-C00150.png) * | 1952-11-15 | |||
| US2762875A (en) * | 1952-11-15 | 1956-09-11 | Rca Corp | Stabilized cascade-connected semi-conductor amplifier circuits and the like |
| US2761916A (en) * | 1952-11-15 | 1956-09-04 | Rca Corp | Self-biasing semi-conductor amplifier circuits and the like |
| DE971601C (de) * | 1952-11-26 | 1959-02-26 | Siemens Ag | Mehrstufiger Transistorverstaerker |
| NL99544C (US20080293856A1-20081127-C00150.png) * | 1953-01-22 | |||
| US2921264A (en) * | 1953-01-27 | 1960-01-12 | Sundt Engineering Company | Protection system for meters or the like |
| BE526444A (US20080293856A1-20081127-C00150.png) * | 1953-02-13 | |||
| BE527170A (US20080293856A1-20081127-C00150.png) * | 1953-03-14 | |||
| US2771584A (en) * | 1953-04-15 | 1956-11-20 | Bell Telephone Labor Inc | Frequency-controlled transistor oscillators |
| NL177985B (nl) * | 1953-04-29 | Balcke Duerr Ag | Inrichting voor het verwijden van buiseinden binnen een buisschijf. | |
| US2897448A (en) * | 1953-06-23 | 1959-07-28 | Bell Telephone Labor Inc | Circuit for measuring alpha of transistors |
| US2760007A (en) * | 1953-08-06 | 1956-08-21 | Bell Telephone Labor Inc | Two-stage transistor feedback amplifier |
| DE977479C (de) * | 1953-08-20 | 1966-08-04 | Siemens Ag | Schaltungsanordnung zur Frequenzmodulation |
| US2905815A (en) * | 1953-08-26 | 1959-09-22 | Rca Corp | Transistor, operating in collector saturation carrier-storage region, converting pulse amplitude to pulse duration |
| US2871376A (en) * | 1953-12-31 | 1959-01-27 | Bell Telephone Labor Inc | Temperature sensitive transistor control circuit |
| BE535194A (US20080293856A1-20081127-C00150.png) * | 1954-01-28 | |||
| US2785231A (en) * | 1954-02-25 | 1957-03-12 | Bell Telephone Labor Inc | Telephone set with amplifier |
| BE536128A (US20080293856A1-20081127-C00150.png) * | 1954-03-01 | |||
| US2842624A (en) * | 1954-03-05 | 1958-07-08 | Hallicrafters Co | Transistor amplifier circuit |
| US2845497A (en) * | 1954-03-22 | 1958-07-29 | E A Myers & Sons Inc | Transistorized amplifier circuits |
| DE1049905B (de) * | 1954-04-10 | 1959-02-05 | Electric &. Musical Industries Limited, Hayes, Middlesex (Großbritannien) | Schaltung zur Verstärkung der Signale einer Bildaufnahmeröhre |
| US2873359A (en) * | 1954-06-10 | 1959-02-10 | Paul W Cooper | Transistorized radio receiver |
| US2774875A (en) * | 1954-07-27 | 1956-12-18 | Gen Electric | Wave generating network |
| BE540597A (US20080293856A1-20081127-C00150.png) * | 1954-08-17 | |||
| US2861258A (en) * | 1954-09-30 | 1958-11-18 | Ibm | Transistor amplifier circuit |
| US2897720A (en) * | 1954-12-02 | 1959-08-04 | Franklin F Offner | Light meter |
| US2864062A (en) * | 1955-02-15 | 1958-12-09 | Gen Electric | Negative resistance using transistors |
| US2966979A (en) * | 1955-05-11 | 1961-01-03 | Clark Controller Co | Transistor control systems |
| US2824177A (en) * | 1955-10-11 | 1958-02-18 | Martin Hearing Aid Company | Hearing aid amplifier |
| US3215851A (en) * | 1955-10-25 | 1965-11-02 | Philco Corp | Emitter follower with nonsaturating driver |
| DE1125487B (de) * | 1956-06-29 | 1962-03-15 | Siemens Ag | Transistorverstaerkerstufe in Basis- oder Emitterschaltung |
| US2922032A (en) * | 1956-10-04 | 1960-01-19 | Gen Dynamies Corp | Superregenerative detector |
| US2930996A (en) * | 1956-12-14 | 1960-03-29 | Gen Electric | Active element impedance network |
| US2999169A (en) * | 1956-12-28 | 1961-09-05 | Bell Telephone Labor Inc | Non-saturating transistor pulse amplifier |
| BE565189A (US20080293856A1-20081127-C00150.png) * | 1957-01-15 | |||
| US3108263A (en) * | 1957-09-10 | 1963-10-22 | Bendix Corp | Error detecting and indicating system |
| NL248990A (US20080293856A1-20081127-C00150.png) * | 1959-03-05 | |||
| DE1132976B (de) * | 1959-10-23 | 1962-07-12 | Wilhelm Heibl Fa | Transistorverstaerker zur hohen Verstaerkung tiefer Frequenzen, insbesondere fuer Elektrokardiographen |
| US3168650A (en) * | 1960-08-15 | 1965-02-02 | Western Geophysical Co | Low noise transistor circuit |
| US3168656A (en) * | 1962-06-18 | 1965-02-02 | Tektronix Inc | Transmission line circuit having termination impedance which includes emitter junction of transistor |
| US3231755A (en) * | 1962-09-10 | 1966-01-25 | Northern Electric Co | Remote volume control |
| US3573615A (en) * | 1967-09-14 | 1971-04-06 | Atomic Energy Commission | System for measuring a pulse charge |
| US3972002A (en) * | 1974-12-30 | 1976-07-27 | Bell Telephone Laboratories, Incorporated | Dual feedback amplifier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1778085A (en) * | 1926-11-24 | 1930-10-14 | American Telephone & Telegraph | Distortionless amplifying system |
| US1877140A (en) * | 1928-12-08 | 1932-09-13 | Lilienfeld Julius Edgar | Amplifier for electric currents |
| US1949383A (en) * | 1930-02-13 | 1934-02-27 | Ind Dev Corp | Electronic device |
| BE487709A (US20080293856A1-20081127-C00150.png) * | 1948-04-23 | |||
| NL75792C (US20080293856A1-20081127-C00150.png) * | 1948-05-19 |
-
0
- NL NL656509340A patent/NL148695B/xx unknown
- BE BE491203D patent/BE491203A/xx unknown
-
1948
- 1948-11-06 US US58684A patent/US2585077A/en not_active Expired - Lifetime
-
1949
- 1949-07-16 DE DEP49051A patent/DE826148C/de not_active Expired
- 1949-08-29 FR FR993834D patent/FR993834A/fr not_active Expired
- 1949-11-04 GB GB28275/49A patent/GB700237A/en not_active Expired
- 1949-11-15 US US127439A patent/US2550518A/en not_active Expired - Lifetime
- 1949-11-15 US US127440A patent/US2541322A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2550518A (en) | 1951-04-24 |
| US2541322A (en) | 1951-02-13 |
| NL148695B (nl) | |
| DE826148C (de) | 1951-12-27 |
| GB700237A (en) | 1953-11-25 |
| FR993834A (fr) | 1951-11-07 |
| US2585077A (en) | 1952-02-12 |
