IL44657A - Controlled transistor amplifier - Google Patents
Controlled transistor amplifierInfo
- Publication number
- IL44657A IL44657A IL44657A IL4465774A IL44657A IL 44657 A IL44657 A IL 44657A IL 44657 A IL44657 A IL 44657A IL 4465774 A IL4465774 A IL 4465774A IL 44657 A IL44657 A IL 44657A
- Authority
- IL
- Israel
- Prior art keywords
- transistors
- base
- amplifier according
- wise
- potential
- Prior art date
Links
- 230000004888 barrier function Effects 0.000 claims 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
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
Landscapes
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Claims (5)
1. Controlled amplifier with two transistors, the emitters of which are coupled to each other a.c.-wise, and are connected galvanically to the emitter potential of the supply voltage via the collector emitter line of a control transistor, the base of which is fed by a rectifier arrangement, comprising that the base side input terminal of the rectifier arrangement is connected to the emitter potential (-) of the supply voltage via a Zener diode, and to the collector potential (+) of the supply voltage via a "series resistor.
2. Amplifier according to Claim 1, comprising two balancing resistors of equal capacity, of which one each connects the collector of the control transistor.
3. Amplifier according to Claims 1 or 2, comprising that the transistors basewise are symmetrically a.c.-wise modulable .
4. Amplifier according to Claims 1 or 2, comprising that one of the two transistors basewise and a.c.-wise are at zero potential.
5. Amplifier according to one of the preceding Claims, comprising that the equipotential for the base connections of the two transistors is generated by a common Ohm's voltage divider and is conducted via one Ohm's base barrier resistor each to the respective base connection. For fhe /Applicant DR. RclNHQLD COHN AND PARTNERS Λ
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2320599A DE2320599C2 (en) | 1973-04-24 | 1973-04-24 | Regulated transistor amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL44657A0 IL44657A0 (en) | 1974-06-30 |
| IL44657A true IL44657A (en) | 1976-11-30 |
Family
ID=5879012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL44657A IL44657A (en) | 1973-04-24 | 1974-04-17 | Controlled transistor amplifier |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS551728B2 (en) |
| AU (1) | AU473491B2 (en) |
| BE (1) | BE814121A (en) |
| BR (1) | BR7403261D0 (en) |
| DE (1) | DE2320599C2 (en) |
| IL (1) | IL44657A (en) |
| IT (1) | IT1009892B (en) |
| NL (1) | NL7405547A (en) |
| SE (1) | SE403231B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424327Y1 (en) * | 1964-01-29 | 1967-03-09 | ||
| JPS452405Y1 (en) * | 1967-07-07 | 1970-01-31 | ||
| JPS4528090Y1 (en) * | 1967-07-12 | 1970-10-29 |
-
1973
- 1973-04-24 DE DE2320599A patent/DE2320599C2/en not_active Expired
-
1974
- 1974-04-08 AU AU67631/74A patent/AU473491B2/en not_active Expired
- 1974-04-17 IL IL44657A patent/IL44657A/en unknown
- 1974-04-18 IT IT21577/74A patent/IT1009892B/en active
- 1974-04-22 JP JP4539674A patent/JPS551728B2/ja not_active Expired
- 1974-04-23 BR BR3261/74A patent/BR7403261D0/en unknown
- 1974-04-23 SE SE7405433A patent/SE403231B/en unknown
- 1974-04-24 BE BE143555A patent/BE814121A/en unknown
- 1974-04-24 NL NL7405547A patent/NL7405547A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE403231B (en) | 1978-07-31 |
| BR7403261D0 (en) | 1974-11-19 |
| JPS551728B2 (en) | 1980-01-16 |
| BE814121A (en) | 1974-08-16 |
| NL7405547A (en) | 1974-10-28 |
| AU473491B2 (en) | 1976-06-24 |
| IL44657A0 (en) | 1974-06-30 |
| JPS5015462A (en) | 1975-02-18 |
| DE2320599C2 (en) | 1975-05-28 |
| IT1009892B (en) | 1976-12-20 |
| AU6763174A (en) | 1975-10-09 |
| DE2320599B1 (en) | 1974-10-17 |
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