GB990309A - Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loads - Google Patents
Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loadsInfo
- Publication number
- GB990309A GB990309A GB1727663A GB1727663A GB990309A GB 990309 A GB990309 A GB 990309A GB 1727663 A GB1727663 A GB 1727663A GB 1727663 A GB1727663 A GB 1727663A GB 990309 A GB990309 A GB 990309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- field effect
- effect transistor
- relating
- high impedance
- signal sources
- 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
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
990,309. Transistor amplifying circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 14, 1964 [May 1, 1963], No. 17276/63. Addition to 973,753. Heading H3T. A circuit for matching a high impedance signal source to a low impedance load comprises a field effect transistor having a feedback loop comprising two further transistors. As shown, signals at 2 are fed to the gate of a pchannel field effect transistor 1, the source electrode of which is coupled to an output terminal 5. A feedback path is provided from the drain to the source electrode via transistors 8, 11 and Zener diode 14 so that the source/ drain voltage is maintained constant. The voltage gain is substantially unity. Alternatively, an n-channel field effect transistor may replace the cathode follower shown in Fig. 1 of the parent Specification 973,753.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1727663A GB990309A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1727663A GB990309A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB990309A true GB990309A (en) | 1965-04-28 |
Family
ID=10092369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1727663A Expired GB990309A (en) | 1963-05-01 | 1963-05-01 | Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB990309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2091933A1 (en) * | 1970-05-06 | 1971-01-21 | Parke Davis & Co | |
| US3777251A (en) * | 1972-10-03 | 1973-12-04 | Motorola Inc | Constant current regulating circuit |
-
1963
- 1963-05-01 GB GB1727663A patent/GB990309A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2091933A1 (en) * | 1970-05-06 | 1971-01-21 | Parke Davis & Co | |
| US3777251A (en) * | 1972-10-03 | 1973-12-04 | Motorola Inc | Constant current regulating circuit |
| DE2349462A1 (en) * | 1972-10-03 | 1974-04-11 | Motorola Inc | STABILIZATION CIRCUIT FOR A CONSTANT CURRENT |
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