GB1379580A - Semiconductor integrated circuits - Google Patents
Semiconductor integrated circuitsInfo
- Publication number
- GB1379580A GB1379580A GB4426471A GB4426471A GB1379580A GB 1379580 A GB1379580 A GB 1379580A GB 4426471 A GB4426471 A GB 4426471A GB 4426471 A GB4426471 A GB 4426471A GB 1379580 A GB1379580 A GB 1379580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- emitter
- integrated circuits
- semiconductor integrated
- sept
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Logic Circuits (AREA)
- Amplifiers (AREA)
Abstract
1379580 Transistor circuits FERRANTI Ltd 21 Sept 1972 [22 Sept 1971] 44264/71 Heading H3T An integrated circuit emitter follower comprises a first transistor T1 with its emitter load constituted by a second transistor T2, the latter being biased by a circuit comprising a resistor R and third transistor T3, the output being taken from the emitter of T1 via a capacitor C. In operation, the potential V is such that the transistors are conductive, and an impedance exists between the base of transistor T1 and earth having a magnitude equal to the product of the impedance between point B and line 10 and the current gain factor of T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4426471A GB1379580A (en) | 1971-09-22 | 1971-09-22 | Semiconductor integrated circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4426471A GB1379580A (en) | 1971-09-22 | 1971-09-22 | Semiconductor integrated circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1379580A true GB1379580A (en) | 1975-01-02 |
Family
ID=10432503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4426471A Expired GB1379580A (en) | 1971-09-22 | 1971-09-22 | Semiconductor integrated circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1379580A (en) |
-
1971
- 1971-09-22 GB GB4426471A patent/GB1379580A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |