SE439223B - Krets for automatisk forsterkningsreglering - Google Patents
Krets for automatisk forsterkningsregleringInfo
- Publication number
- SE439223B SE439223B SE7906152A SE7906152A SE439223B SE 439223 B SE439223 B SE 439223B SE 7906152 A SE7906152 A SE 7906152A SE 7906152 A SE7906152 A SE 7906152A SE 439223 B SE439223 B SE 439223B
- Authority
- SE
- Sweden
- Prior art keywords
- circuit
- transistor
- voltage
- output
- current
- Prior art date
Links
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
- Noise Elimination (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978098782U JPS5515857U (de) | 1978-07-17 | 1978-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7906152L SE7906152L (sv) | 1980-01-18 |
| SE439223B true SE439223B (sv) | 1985-06-03 |
Family
ID=14228929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7906152A SE439223B (sv) | 1978-07-17 | 1979-07-17 | Krets for automatisk forsterkningsreglering |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4300104A (de) |
| JP (1) | JPS5515857U (de) |
| AU (1) | AU527814B2 (de) |
| DE (1) | DE2928859A1 (de) |
| GB (1) | GB2025720B (de) |
| NL (1) | NL7905539A (de) |
| SE (1) | SE439223B (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424494A (en) * | 1981-12-17 | 1984-01-03 | General Motors Corporation | Automatic gain control circuit |
| NL8105688A (nl) * | 1981-12-17 | 1983-07-18 | Philips Nv | Amplituderegelsysteem. |
| JPS58121809A (ja) * | 1982-01-14 | 1983-07-20 | Toshiba Corp | 増幅回路 |
| IT1190872B (it) * | 1982-06-17 | 1988-02-24 | Sgs Microelettronica Spa | Sistema di amplificazione audio con incremento della potenza media di ascolto |
| US4637066A (en) * | 1985-07-02 | 1987-01-13 | General Motors Corporation | Noise blanking signal generator for AM radio |
| JPH0695741B2 (ja) * | 1988-07-27 | 1994-11-24 | 三菱電機株式会社 | 自動利得制御回路 |
| MY118209A (en) * | 1997-09-26 | 2004-09-30 | Motorola Solutions Inc | Automatic voltage level control circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3441748A (en) * | 1965-03-22 | 1969-04-29 | Rca Corp | Bidirectional igfet with symmetrical linear resistance with specific substrate voltage control |
| DE1934306C3 (de) * | 1969-07-07 | 1975-06-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Selbsttätig geregelter Wechselspannungsverstärker mit einer merklichen Zeitkonstante des Stellgliedes |
| US3750032A (en) * | 1972-02-24 | 1973-07-31 | Motorola Inc | Priority channel scanning system with dual response time control |
| DE2610981C3 (de) * | 1976-03-16 | 1979-03-22 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Funkempfanger mit einer Rauschsperre |
| GB1578374A (en) * | 1976-11-08 | 1980-11-05 | Clarion Co Ltd | Noise reduction in audio reproducing systems |
-
1978
- 1978-07-17 JP JP1978098782U patent/JPS5515857U/ja active Pending
-
1979
- 1979-07-16 GB GB7924687A patent/GB2025720B/en not_active Expired
- 1979-07-16 NL NL7905539A patent/NL7905539A/nl not_active Application Discontinuation
- 1979-07-17 DE DE19792928859 patent/DE2928859A1/de active Granted
- 1979-07-17 SE SE7906152A patent/SE439223B/sv not_active IP Right Cessation
- 1979-07-17 AU AU48973/79A patent/AU527814B2/en not_active Ceased
- 1979-07-17 US US06/058,400 patent/US4300104A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU527814B2 (en) | 1983-03-24 |
| GB2025720A (en) | 1980-01-23 |
| JPS5515857U (de) | 1980-01-31 |
| DE2928859C2 (de) | 1987-05-21 |
| DE2928859A1 (de) | 1980-02-14 |
| SE7906152L (sv) | 1980-01-18 |
| NL7905539A (nl) | 1980-01-21 |
| GB2025720B (en) | 1982-10-06 |
| AU4897379A (en) | 1980-01-24 |
| US4300104A (en) | 1981-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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