BR7205401D0 - Suprimento de voltagem melhorado para sintonizacao de diodo condensador de voltagem variavel - Google Patents
Suprimento de voltagem melhorado para sintonizacao de diodo condensador de voltagem variavelInfo
- Publication number
- BR7205401D0 BR7205401D0 BR5401/72A BR540172A BR7205401D0 BR 7205401 D0 BR7205401 D0 BR 7205401D0 BR 5401/72 A BR5401/72 A BR 5401/72A BR 540172 A BR540172 A BR 540172A BR 7205401 D0 BR7205401 D0 BR 7205401D0
- Authority
- BR
- Brazil
- Prior art keywords
- improved
- voltage
- voltage supply
- variable
- condenser tuning
- Prior art date
Links
Classifications
-
- 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
- H03B5/02—Details
- H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17059171A | 1971-08-10 | 1971-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7205401D0 true BR7205401D0 (pt) | 1973-06-07 |
Family
ID=22620492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR5401/72A BR7205401D0 (pt) | 1971-08-10 | 1972-08-09 | Suprimento de voltagem melhorado para sintonizacao de diodo condensador de voltagem variavel |
Country Status (8)
Country | Link |
---|---|
US (1) | US3727139A (pt) |
JP (2) | JPS4826401A (pt) |
AR (1) | AR192464A1 (pt) |
BR (1) | BR7205401D0 (pt) |
CA (1) | CA960319A (pt) |
DE (1) | DE2238312C3 (pt) |
GB (1) | GB1377830A (pt) |
IT (1) | IT961931B (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2212987A5 (pt) * | 1972-12-29 | 1974-07-26 | Commissariat Energie Atomique | |
JPS556208Y2 (pt) * | 1973-08-28 | 1980-02-13 | ||
US4047111A (en) * | 1976-07-19 | 1977-09-06 | General Motors Corporation | Tuning system for AM/FM receivers |
US4392254A (en) * | 1980-09-29 | 1983-07-05 | Motorola Inc. | Mechanical tuner with microphonics elimination circuitry |
DE102006060870A1 (de) * | 2006-12-22 | 2008-07-24 | Atmel Duisburg Gmbh | Integrierbare Schaltungsanordnung und integrierte Schaltung |
US9192425B2 (en) * | 2012-06-26 | 2015-11-24 | Covidien Lp | System and method for testing electrosurgical generators |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3249876A (en) * | 1963-02-07 | 1966-05-03 | Gen Dynamics Corp | Precision tracking of electrically tuned circuits |
ES346866A1 (es) * | 1966-11-07 | 1969-01-01 | Telefunken Patent | Disposicion de conexion para oscilaciones electricas para el ajuste de frecuencias. |
US3478256A (en) * | 1966-11-15 | 1969-11-11 | Yokogawa Electric Works Ltd | Capacitor potentiometer |
GB1215296A (en) * | 1967-01-21 | 1970-12-09 | Sevcon Eng Ltd | Improvements in means for producing a variable voltage |
CH504039A (fr) * | 1968-10-23 | 1970-11-13 | Suisse Horlogerie | Circuit oscillateur à quartz, à résonance parallèle, pour appareil de mesure du temps |
US3657654A (en) * | 1969-09-11 | 1972-04-18 | Gen Instrument Corp | Communications receiver employing varactor controlled tuning stages |
US3638096A (en) * | 1970-12-21 | 1972-01-25 | Bell Telephone Labor Inc | Constant frequency dc to dc converter with oscillation sustaining voltage regulation feedback loop |
-
1971
- 1971-08-10 US US00170591A patent/US3727139A/en not_active Expired - Lifetime
-
1972
- 1972-07-19 CA CA147,462A patent/CA960319A/en not_active Expired
- 1972-08-03 JP JP47077332A patent/JPS4826401A/ja active Pending
- 1972-08-03 DE DE2238312A patent/DE2238312C3/de not_active Expired
- 1972-08-04 AR AR243436A patent/AR192464A1/es active
- 1972-08-09 BR BR5401/72A patent/BR7205401D0/pt unknown
- 1972-08-09 IT IT52074/72A patent/IT961931B/it active
- 1972-08-10 GB GB3734972A patent/GB1377830A/en not_active Expired
-
1978
- 1978-04-10 JP JP1978045924U patent/JPS5745682Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2238312B2 (de) | 1975-01-23 |
AR192464A1 (es) | 1973-02-21 |
IT961931B (it) | 1973-12-10 |
JPS5745682Y2 (pt) | 1982-10-08 |
JPS53153801U (pt) | 1978-12-04 |
CA960319A (en) | 1974-12-31 |
US3727139A (en) | 1973-04-10 |
DE2238312A1 (de) | 1973-03-15 |
JPS4826401A (pt) | 1973-04-07 |
GB1377830A (en) | 1974-12-18 |
DE2238312C3 (de) | 1982-08-19 |
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