GB1140147A - Improvements in d.c. impedance converter circuits - Google Patents
Improvements in d.c. impedance converter circuitsInfo
- Publication number
- GB1140147A GB1140147A GB4850266A GB4850266A GB1140147A GB 1140147 A GB1140147 A GB 1140147A GB 4850266 A GB4850266 A GB 4850266A GB 4850266 A GB4850266 A GB 4850266A GB 1140147 A GB1140147 A GB 1140147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- base bias
- separate
- arrangement
- oct
- 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
- 230000000295 complement effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000004804 winding Methods 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
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled 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
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output
- H03F3/3076—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with symmetrical driving of the end stage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Amplifiers (AREA)
Abstract
1,140,147. Transistor amplifying circuits. FERNSTEUERGER€TE ZACHARIA - OELSCH - MEIER. 28 Oct., 1966 [29 Oct., 1965], No. 48502/66. Heading H3T. An impedance converting arrangement comprises two complementary transistors biased in opposite directions at their bases with respect to a first input terminal 32 and interconnected at their emitters, via series emitter resistors 10, 12, an input voltage being applied via a second input terminal 34 to the junction point of the emitter resistors. A load 22 is connected in a common part of the emittercollector circuits of the transistors and the arrangement is characterized in that one or more separate voltage supply sources electrically separated from the collector supply voltage 18, 20 are provided to produce the base bias voltage. As shown this is produced by separate batteries 28, 30: in an arrangement with A.C. mains supply, the base bias is derived from a separate rectifier fed from its own transformer winding (Fig. 2, not shown). The specification also discloses various modifications in which the input depends upon the position of the slider of a potentiometer, and in which Zener diodes are used to stabilize the base bias (Figs. 3-6, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0047550 | 1965-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1140147A true GB1140147A (en) | 1969-01-15 |
Family
ID=7101693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4850266A Expired GB1140147A (en) | 1965-10-29 | 1966-10-28 | Improvements in d.c. impedance converter circuits |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH442432A (en) |
| DE (1) | DE1270118B (en) |
| FR (1) | FR1498083A (en) |
| GB (1) | GB1140147A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778460A (en) * | 1954-06-11 | 1957-07-10 | Sperry Corp | Transistor amplifier |
-
1965
- 1965-10-29 DE DE19651270118 patent/DE1270118B/en active Pending
-
1966
- 1966-10-26 CH CH1558666A patent/CH442432A/en unknown
- 1966-10-28 GB GB4850266A patent/GB1140147A/en not_active Expired
- 1966-10-29 FR FR67008732A patent/FR1498083A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1270118B (en) | 1968-06-12 |
| FR1498083A (en) | 1967-10-13 |
| CH442432A (en) | 1967-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES371703A1 (en) | Phase splitting amplifier | |
| GB1405497A (en) | Voltage regulator circuit | |
| GB766744A (en) | Semi-conductor signal receiving system | |
| GB1078943A (en) | Comparator | |
| GB1408985A (en) | Constant current circuits | |
| GB1140147A (en) | Improvements in d.c. impedance converter circuits | |
| GB1134989A (en) | Improvements in or relating to a device for producing a periodic voltage of desired waveform shape | |
| GB1335289A (en) | Current sources | |
| GB1484789A (en) | Power supply circuits | |
| GB1485778A (en) | Signal clipping circuits | |
| JPS5654117A (en) | Schmitt circuit | |
| GB1336616A (en) | Transistor switching circuit | |
| GB1339908A (en) | Microampere current source | |
| GB1225393A (en) | ||
| GB1206478A (en) | Signal limiter-amplifier circuit arrangements | |
| GB1254669A (en) | Transistor circuits | |
| FR2281603A1 (en) | Voltage regulator with defined temp. coefft. - has coefft. determined by resistance values and transistor collector currents | |
| GB1057097A (en) | Improvements relating to transistor amplifiers | |
| ES475477A1 (en) | Vertical deflection circuit control for TV receivers - has two diodes between transistor bases, shunted by capacitor, with one base connected through resistor to supply voltage | |
| GB980370A (en) | Improvements in or relating to current regulating transistor circuit arrangements | |
| GB1032224A (en) | Improvements in and relating to electric signal amplifiers | |
| GB1174803A (en) | Amplifier | |
| GB1063763A (en) | Improvements in and relating to constant electrical current supply circuits | |
| GB1051519A (en) | ||
| GB975453A (en) | Improvements in or relating to transistor circuits |