GB1041370A - Improvements in or relating to electrical apparatuses - Google Patents
Improvements in or relating to electrical apparatusesInfo
- Publication number
- GB1041370A GB1041370A GB1141464A GB1141464A GB1041370A GB 1041370 A GB1041370 A GB 1041370A GB 1141464 A GB1141464 A GB 1141464A GB 1141464 A GB1141464 A GB 1141464A GB 1041370 A GB1041370 A GB 1041370A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- output
- function
- transistors
- regulator
- 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
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
-
- 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)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
1,041,370. Automatic voltage control. GENERAL ELECTRIC CO Ltd. Feb. 19, 1965 [March 18, 1964], No. 11414/64. Heading G3R. [Also in Division H3] In a D.C. regulator of the type including a series impedance device controlled in dependence upon output variations, the device is arranged to perform a further function involving the passage of A.C. signals. As shown, in a television receiver a stabilized voltage at terminals 5, 6 is derived from an unstabilized source 4 by way of a series transistor 8 the impedance of which is automatically varied to compensate for output voltage variations, this control being effected by a circuit including a further transistor 19 associated with a reference Zener diode 26. The transistors 8 and 19 are also utilized to amplify an audio signal which is applied to a loudspeaker 17 over transistor 19, transformer 22, transistor 8 and transformer 11. The transistors 8 and 19 thus perform both a D.C. function, as regulating elements, and an A. C. function, as amplifying elements. A second embodiment, employing a pentode valve as the variable impedance element and the audio amplifier is described with reference to Fig. 2 (not shown). Filtering capacitors such as 14, 15 and 16 prevent the appearance of the A.C. signals at the D. C. output of the regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1141464A GB1041370A (en) | 1964-03-18 | 1964-03-18 | Improvements in or relating to electrical apparatuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1141464A GB1041370A (en) | 1964-03-18 | 1964-03-18 | Improvements in or relating to electrical apparatuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1041370A true GB1041370A (en) | 1966-09-07 |
Family
ID=9985775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1141464A Expired GB1041370A (en) | 1964-03-18 | 1964-03-18 | Improvements in or relating to electrical apparatuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1041370A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3621134A (en) * | 1969-03-17 | 1971-11-16 | Magnavox Co | Low b{30 {0 start circuit for line-operated receiver |
| US3752903A (en) * | 1971-11-08 | 1973-08-14 | Gen Electric | Pilot voltage supply & voltage regulation means |
| US3824333A (en) * | 1971-12-23 | 1974-07-16 | Philips Corp | Audio output stage |
-
1964
- 1964-03-18 GB GB1141464A patent/GB1041370A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3621134A (en) * | 1969-03-17 | 1971-11-16 | Magnavox Co | Low b{30 {0 start circuit for line-operated receiver |
| US3752903A (en) * | 1971-11-08 | 1973-08-14 | Gen Electric | Pilot voltage supply & voltage regulation means |
| US3824333A (en) * | 1971-12-23 | 1974-07-16 | Philips Corp | Audio output stage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1400427A (en) | Video signal processing apparatus | |
| GB1025895A (en) | A circuit arrangement for the connection of a video-signal producer to a television receiver | |
| GB1181124A (en) | Gain Controlled Amplifier | |
| GB1467462A (en) | Voltage regulators | |
| GB1017759A (en) | Improvements in or relating to variable gain transistor amplifiers | |
| GB1458545A (en) | Window detector circuit | |
| GB940853A (en) | Voltage sensitive regulating or control circuit | |
| GB1041370A (en) | Improvements in or relating to electrical apparatuses | |
| GB1065415A (en) | Improvements in transistor signal translating circuits having automatic gain control | |
| GB1387019A (en) | Hf input stage particularly for a tuner for a television receiver | |
| GB1216298A (en) | Audio level clipper and compressor | |
| GB1272655A (en) | Wide-band amplifier | |
| GB983270A (en) | Television receiver power supply | |
| GB1157723A (en) | Transistor Deflection Control Arrangements for Television Equipment | |
| GB970673A (en) | Automatic-gain-control system | |
| GB1273409A (en) | Automatic equaliser for correcting variations in attenuation | |
| GB1077362A (en) | Improvements in or relating to low frequency amplifier circuits | |
| GB1127797A (en) | Improvements in or relating to amplifiers | |
| GB1092863A (en) | Improvements in or relating to d.c. voltage stabilisers | |
| GB1070661A (en) | Automatic gain control arrangements in transistor amplifiers | |
| GB1286258A (en) | Improvements in or relating to limiter circuits | |
| GB1031958A (en) | Improvements in or relating to d.c. voltage transformer apparatus | |
| GB1045758A (en) | Automatic gain control circuits | |
| GB873564A (en) | Circuit with transistors for wide-band amplification | |
| GB923428A (en) | Circuit arrangement for controlling the amplification in a transistor amplifier stage |