GB715970A - Improvements in semi-conductor circuits - Google Patents
Improvements in semi-conductor circuitsInfo
- Publication number
- GB715970A GB715970A GB2310/52A GB231052A GB715970A GB 715970 A GB715970 A GB 715970A GB 2310/52 A GB2310/52 A GB 2310/52A GB 231052 A GB231052 A GB 231052A GB 715970 A GB715970 A GB 715970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- series
- emitter
- circuit
- thermistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004065 semiconductor Substances 0.000 title abstract 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000005751 Copper oxide Substances 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- 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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
Abstract
715,970. Semi-conductor amplifier circuits. STALHANE, B. Jan. 28, 1952 [Jan. 31, 1951], No. 2310/52. Class 40 (6) The bias for the emitter 4 in a transistor circuit is obtained from a constantvoltage type of resistance 11 (e.g. a varistor or a thermistor) which is'connected in series with the base electrode 2. The collector 3 is biased by means of battery 5, and the input signal 9 is applied to the emitter 4. Resistance 8 in series with the emitter enables the emitter current to be adjusted to a desired level. A three stage cascade amplifier is described, in which the bias battery is connected across the collectorbase circuits of the three transistors connected in series. A push-pull amplifier circuit is also described. The signal input circuit may be connected in parallel with the biasing circuit comprising resistance 8; and a linear resistance may be connected in series with a thermistor to provide the constant-voltage resistsance 11. The constant-voltage resistance may consist of silicon carbide, selenium or copper oxide dry plate rectifiers, or varistors of the type described in Specification 589,574, [Group XXXVI], which provide a large shunt capacity. Specification 694,025 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE715970X | 1951-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB715970A true GB715970A (en) | 1954-09-22 |
Family
ID=20315842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2310/52A Expired GB715970A (en) | 1951-01-31 | 1952-01-28 | Improvements in semi-conductor circuits |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR1049966A (en) |
GB (1) | GB715970A (en) |
NL (1) | NL167001B (en) |
SE (1) | SE140501C1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032788B (en) * | 1954-11-25 | 1958-06-26 | Philips Nv | Transistor amplifier with operating point stabilization |
DE1069195B (en) * | 1959-11-19 | Siernens-Schuckertwerke Aktiengesellschaft, Berlin und Erlangen | Transistor stage in emitter circuit with measures to compensate for temperature-related changes in their transmission properties | |
US3028531A (en) * | 1957-07-29 | 1962-04-03 | Danly Mach Specialties Inc | Automatic shut height motor control circuit |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE527086A (en) * | 1953-03-09 | |||
US2848564A (en) * | 1954-07-27 | 1958-08-19 | Gen Electric | Temperature stabilized transistor amplifier |
US2887540A (en) * | 1954-09-20 | 1959-05-19 | Rca Corp | Temperature-compensated transistor biasing circuits |
-
0
- NL NL7005155.A patent/NL167001B/en unknown
-
1951
- 1951-01-30 SE SE81451A patent/SE140501C1/xx unknown
-
1952
- 1952-01-28 GB GB2310/52A patent/GB715970A/en not_active Expired
- 1952-01-29 FR FR1049966D patent/FR1049966A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069195B (en) * | 1959-11-19 | Siernens-Schuckertwerke Aktiengesellschaft, Berlin und Erlangen | Transistor stage in emitter circuit with measures to compensate for temperature-related changes in their transmission properties | |
DE1032788B (en) * | 1954-11-25 | 1958-06-26 | Philips Nv | Transistor amplifier with operating point stabilization |
US3028531A (en) * | 1957-07-29 | 1962-04-03 | Danly Mach Specialties Inc | Automatic shut height motor control circuit |
Also Published As
Publication number | Publication date |
---|---|
FR1049966A (en) | 1954-01-04 |
SE140501C1 (en) | 1953-05-26 |
NL167001B (en) |
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