IT1194044B - Amplificatore a guadagno controllato con degenerazione variabile di emettitore - Google Patents
Amplificatore a guadagno controllato con degenerazione variabile di emettitoreInfo
- Publication number
- IT1194044B IT1194044B IT20925/81A IT2092581A IT1194044B IT 1194044 B IT1194044 B IT 1194044B IT 20925/81 A IT20925/81 A IT 20925/81A IT 2092581 A IT2092581 A IT 2092581A IT 1194044 B IT1194044 B IT 1194044B
- Authority
- IT
- Italy
- Prior art keywords
- emitter
- gain amplifier
- controlled gain
- variable degeneration
- degeneration
- Prior art date
Links
- 230000007850 degeneration Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
- H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/143,035 US4345214A (en) | 1980-04-23 | 1980-04-23 | Variable emitter degeneration gain-controlled amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8120925A0 IT8120925A0 (it) | 1981-04-03 |
IT1194044B true IT1194044B (it) | 1988-08-31 |
Family
ID=22502323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20925/81A IT1194044B (it) | 1980-04-23 | 1981-04-03 | Amplificatore a guadagno controllato con degenerazione variabile di emettitore |
Country Status (23)
Country | Link |
---|---|
US (1) | US4345214A (it) |
JP (1) | JPS56168415A (it) |
KR (1) | KR850000733B1 (it) |
AR (1) | AR231889A1 (it) |
AT (1) | AT383236B (it) |
AU (1) | AU542842B2 (it) |
BE (1) | BE888511A (it) |
CA (1) | CA1170731A (it) |
DD (1) | DD158458A5 (it) |
DE (1) | DE3116228C2 (it) |
DK (1) | DK157966C (it) |
ES (1) | ES8206117A1 (it) |
FI (1) | FI74367C (it) |
FR (1) | FR2481541B1 (it) |
GB (1) | GB2074410B (it) |
IT (1) | IT1194044B (it) |
NL (1) | NL190681C (it) |
NZ (1) | NZ196874A (it) |
PL (1) | PL135040B1 (it) |
PT (1) | PT72855B (it) |
SE (1) | SE448801B (it) |
SU (1) | SU1268118A3 (it) |
ZA (1) | ZA812598B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5952874A (ja) * | 1982-09-20 | 1984-03-27 | Toshiba Corp | 利得制御回路装置 |
WO1997042704A2 (en) * | 1996-05-09 | 1997-11-13 | Philips Electronics N.V. | Degenerated differential pair with controllable transconductance |
JP4054716B2 (ja) * | 2003-05-16 | 2008-03-05 | 沖電気工業株式会社 | 可変ゲインアンプ及びam変調信号受信回路及び検波回路 |
US8611836B2 (en) * | 2010-08-25 | 2013-12-17 | Skyworks Solutions, Inc. | Amplifier gain adjustment in response to reduced supply voltage |
RU2719419C1 (ru) * | 2019-12-16 | 2020-04-17 | Открытое акционерное общество "Межгосударственная Корпорация Развития" (ОАО"Межгосударственная Корпорация Развития") | Способ автоматической регулировки усиления и устройство его реализующее |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3002090A (en) | 1958-08-27 | 1961-09-26 | Hazeltine Research Inc | Automatic-gain-control system |
DE1247405B (de) | 1960-06-09 | 1967-08-17 | Telefunken Patent | In einem weiten Bereich regelbarer einstufiger Transistorverstaerker |
DE1285547B (de) * | 1965-04-17 | 1968-12-19 | Te Ka De Fernmeldeapp Gmbh | Verfahren zur automatischen Verstaerkungsregelung einer gegengekoppelten Transistor-Verstaerkerstufe in Emitterschaltung |
DE1943788A1 (de) | 1969-08-28 | 1971-03-04 | Siemens Ag | Schaltungsanordnung fuer eine integrierte Verstaerkerstufe mit gesteuerter Gegenkopplung |
US3641450A (en) * | 1970-12-15 | 1972-02-08 | Motorola Inc | Gain controlled differential amplifier circuit |
US3700937A (en) * | 1971-07-01 | 1972-10-24 | Branson Instr | Submersible ultrasonic transducer assembly |
FR2204333A5 (it) * | 1972-10-20 | 1974-05-17 | Thomson Csf | |
DE2262089C3 (de) | 1972-12-19 | 1975-10-30 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur elektronischen Frequenzbeeinflussung, insbesondere elektronischer Klangeinsteller |
JPS5625815B2 (it) * | 1974-02-14 | 1981-06-15 | ||
US4131809A (en) * | 1974-06-17 | 1978-12-26 | U.S. Philips Corporation | Symmetrical arrangement for forming a variable alternating-current resistance |
NL161318C (nl) | 1974-06-17 | 1980-01-15 | Philips Nv | Symmetrische inrichting voor het vormen van een regel- bare wisselstroomweerstand. |
DE2804142C3 (de) * | 1978-01-31 | 1982-02-11 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Kompensation von Verlustströmen, die in einem zur Verstärkungsregelung von integrierten, breitbandigen Differenzverstärkern verwendeten dynamischen Widerstand durch parasitäre Transistoren bedingt sind |
US4267518A (en) * | 1979-09-13 | 1981-05-12 | Sperry Corporation | Gain controllable amplifier stage |
US4344043A (en) * | 1980-04-23 | 1982-08-10 | Rca Corporation | Variable load impedance gain-controlled amplifier |
-
1980
- 1980-04-23 US US06/143,035 patent/US4345214A/en not_active Expired - Lifetime
-
1981
- 1981-04-03 IT IT20925/81A patent/IT1194044B/it active
- 1981-04-14 CA CA000375486A patent/CA1170731A/en not_active Expired
- 1981-04-14 PT PT72855A patent/PT72855B/pt not_active IP Right Cessation
- 1981-04-16 SE SE8102482A patent/SE448801B/sv not_active IP Right Cessation
- 1981-04-16 GB GB8112131A patent/GB2074410B/en not_active Expired
- 1981-04-16 AU AU69634/81A patent/AU542842B2/en not_active Ceased
- 1981-04-16 FI FI811188A patent/FI74367C/fi not_active IP Right Cessation
- 1981-04-17 JP JP5907981A patent/JPS56168415A/ja active Granted
- 1981-04-17 PL PL1981230736A patent/PL135040B1/pl unknown
- 1981-04-21 BE BE0/204565A patent/BE888511A/fr not_active IP Right Cessation
- 1981-04-21 ZA ZA00812598A patent/ZA812598B/xx unknown
- 1981-04-22 AT AT0182481A patent/AT383236B/de not_active IP Right Cessation
- 1981-04-22 DK DK179581A patent/DK157966C/da not_active IP Right Cessation
- 1981-04-22 ES ES501552A patent/ES8206117A1/es not_active Expired
- 1981-04-22 AR AR285048A patent/AR231889A1/es active
- 1981-04-22 NL NL8101991A patent/NL190681C/xx not_active IP Right Cessation
- 1981-04-22 KR KR1019810001384A patent/KR850000733B1/ko active
- 1981-04-22 SU SU813272953A patent/SU1268118A3/ru active
- 1981-04-22 FR FR8108019A patent/FR2481541B1/fr not_active Expired
- 1981-04-22 NZ NZ196874A patent/NZ196874A/en unknown
- 1981-04-23 DE DE3116228A patent/DE3116228C2/de not_active Expired
- 1981-04-23 DD DD81229456A patent/DD158458A5/de not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970423 |