GB1214954A - Improvements relating to electrical power supply arrangements - Google Patents
Improvements relating to electrical power supply arrangementsInfo
- Publication number
- GB1214954A GB1214954A GB2280969A GB2280969A GB1214954A GB 1214954 A GB1214954 A GB 1214954A GB 2280969 A GB2280969 A GB 2280969A GB 2280969 A GB2280969 A GB 2280969A GB 1214954 A GB1214954 A GB 1214954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- output
- rectifier
- power supply
- pair
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
1,214,954. 954. Automatic voltage control. MULLARD Ltd. May 5, 1969, No.22809/69. Heading G3R. [Also in Division H2] A power supply comprising two or more D.C./ D.C. converters each of which consists of a transistor oscillator 25, a rectifier 55 and an automatic voltage regulation circuit and in each of which there is included an output transformer 33 having an isolated output circuit, is characterised in that the output circuits are connected in cascade. The output at the collector of the transistor 25 is rectified by diodes 40, 41 to provide a D.C. signal proportional to the amplitude of the oscillatory signal, which is fed to one transistor 29 of an emitter coupled pair. The other transistor 28 of the pair receives a reference voltage derived from Zener diode 48 and the output is fed to transistor pair 26, 27 which control the amplitude of oscillation. In the event of an overload, transistor 29 cuts off and cuts off transistor 31. Transistor 30 then becomes conductive to bias off both transistor 28, 29 and stop the oscillator. The rectifier 55 may be replaced by a simple rectifier. The outputs of several such converter may be connected in cascade to the electrodes of an electronic imaging tube, Fig. 1 (not shown). (For Figures see next page)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2280969A GB1214954A (en) | 1969-05-05 | 1969-05-05 | Improvements relating to electrical power supply arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2280969A GB1214954A (en) | 1969-05-05 | 1969-05-05 | Improvements relating to electrical power supply arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1214954A true GB1214954A (en) | 1970-12-09 |
Family
ID=10185405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2280969A Expired GB1214954A (en) | 1969-05-05 | 1969-05-05 | Improvements relating to electrical power supply arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1214954A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0134167A2 (en) * | 1983-07-06 | 1985-03-13 | National Aeronautics And Space Administration | High voltage isolation transformer |
-
1969
- 1969-05-05 GB GB2280969A patent/GB1214954A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0134167A2 (en) * | 1983-07-06 | 1985-03-13 | National Aeronautics And Space Administration | High voltage isolation transformer |
EP0134167A3 (en) * | 1983-07-06 | 1986-02-12 | National Aeronautics And Space Administration | High voltage isolation transformer |
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