ZA752636B - Electric lighting systems - Google Patents
Electric lighting systemsInfo
- Publication number
- ZA752636B ZA752636B ZA00752636A ZA752636A ZA752636B ZA 752636 B ZA752636 B ZA 752636B ZA 00752636 A ZA00752636 A ZA 00752636A ZA 752636 A ZA752636 A ZA 752636A ZA 752636 B ZA752636 B ZA 752636B
- Authority
- ZA
- South Africa
- Prior art keywords
- lighting systems
- electric lighting
- electric
- systems
- lighting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices
- H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
- H05B41/2822—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18558/74A GB1506390A (en) | 1974-04-27 | 1974-04-27 | Electric lighting systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA752636B true ZA752636B (en) | 1976-04-28 |
Family
ID=10114515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00752636A ZA752636B (en) | 1974-04-27 | 1975-04-23 | Electric lighting systems |
Country Status (10)
Country | Link |
---|---|
US (1) | US4004185A (xx) |
JP (1) | JPS50152567A (xx) |
DE (1) | DE2518601A1 (xx) |
ES (1) | ES436962A1 (xx) |
FR (1) | FR2269269B1 (xx) |
GB (1) | GB1506390A (xx) |
IT (1) | IT1035457B (xx) |
NL (1) | NL7505045A (xx) |
SE (1) | SE7504857L (xx) |
ZA (1) | ZA752636B (xx) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1116690A (en) * | 1976-02-02 | 1982-01-19 | Esquire, Inc. | High frequency circuit for operating a high-intensity, gaseous discharge lamp |
US4128789A (en) * | 1976-06-30 | 1978-12-05 | General Electric Company | Method of operating gaseous discharge lamps |
US4144462A (en) * | 1977-04-28 | 1979-03-13 | Dual-Lite, Inc. | Emergency lighting fluorescent pack |
US4129805A (en) * | 1977-12-05 | 1978-12-12 | Sherman Eli H | Impulse generator for use with phosphor energizable lamps |
US4375608A (en) * | 1980-05-30 | 1983-03-01 | Beatrice Foods Co. | Electronic fluorescent lamp ballast |
US4508996A (en) * | 1980-06-23 | 1985-04-02 | Brigham Young University | High frequency supply system for gas discharge lamps and electronic ballast therefor |
USRE33057E (en) * | 1980-06-23 | 1989-09-12 | Brigham Young University | High frequency supply system for gas discharge lamps and electronic ballast therefor |
DE3341010A1 (de) * | 1983-11-12 | 1984-08-09 | Popp, Thomas, 8671 Döhlau | Fluoreszierende akku - lampe leuchtstoffbeleuchtung zu 12 v / dc |
US4712170A (en) * | 1985-04-25 | 1987-12-08 | Power Modifications Incorporated | Power supply having tuned radio frequency circuit |
GB2223893A (en) * | 1988-08-20 | 1990-04-18 | Kwei Chun Shek | Oscillator circuit for lighting supply |
US6454431B1 (en) | 1992-05-07 | 2002-09-24 | Cathode Lighting Systems, Inc. | Lighting system |
WO2000054558A1 (en) * | 1999-03-09 | 2000-09-14 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
DE102006039945B4 (de) * | 2006-08-25 | 2010-04-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Mit verschiedenen Betriebsspannungen betreibbares elektromagnetisches Ventil und Verfahren zu seiner Herstellung |
US8279033B2 (en) * | 2008-01-25 | 2012-10-02 | Tech Design, L.L.C. | Transformer with isolated cells |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895081A (en) * | 1956-03-12 | 1959-07-14 | Joseph W Crownover | Interrupted flash generator |
US2982881A (en) * | 1958-05-22 | 1961-05-02 | Robert W Reich | Portable light source |
US3501674A (en) * | 1967-07-13 | 1970-03-17 | Battery Lite Corp | High frequency portable power supply for a fluorescent lamp |
-
1974
- 1974-04-27 GB GB18558/74A patent/GB1506390A/en not_active Expired
-
1975
- 1975-04-23 ZA ZA00752636A patent/ZA752636B/xx unknown
- 1975-04-24 IT IT49285/75A patent/IT1035457B/it active
- 1975-04-24 DE DE19752518601 patent/DE2518601A1/de active Pending
- 1975-04-25 FR FR7513002A patent/FR2269269B1/fr not_active Expired
- 1975-04-25 US US05/571,509 patent/US4004185A/en not_active Expired - Lifetime
- 1975-04-25 ES ES436962A patent/ES436962A1/es not_active Expired
- 1975-04-25 SE SE7504857A patent/SE7504857L/xx unknown
- 1975-04-28 JP JP50050867A patent/JPS50152567A/ja active Pending
- 1975-04-28 NL NL7505045A patent/NL7505045A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2269269A1 (xx) | 1975-11-21 |
IT1035457B (it) | 1979-10-20 |
FR2269269B1 (xx) | 1979-01-19 |
GB1506390A (en) | 1978-04-05 |
US4004185A (en) | 1977-01-18 |
AU8049575A (en) | 1976-10-28 |
DE2518601A1 (de) | 1975-11-20 |
ES436962A1 (es) | 1977-04-01 |
JPS50152567A (xx) | 1975-12-08 |
NL7505045A (nl) | 1975-10-29 |
SE7504857L (sv) | 1975-12-18 |
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