IT1228394B - REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. - Google Patents
REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES.Info
- Publication number
- IT1228394B IT1228394B IT8919187A IT1918789A IT1228394B IT 1228394 B IT1228394 B IT 1228394B IT 8919187 A IT8919187 A IT 8919187A IT 1918789 A IT1918789 A IT 1918789A IT 1228394 B IT1228394 B IT 1228394B
- Authority
- IT
- Italy
- Prior art keywords
- references
- power supply
- frequency converter
- cold cathode
- cathode fluorescent
- Prior art date
Links
Classifications
-
- 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
- H05B41/2825—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 bridge converter in the final stage
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8919187A IT1228394B (en) | 1989-01-25 | 1989-01-25 | REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. |
EP19890123995 EP0379729A3 (en) | 1989-01-25 | 1989-12-27 | Improvements in frequency converter circuits for powering cold cathode fluorescent tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8919187A IT1228394B (en) | 1989-01-25 | 1989-01-25 | REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8919187A0 IT8919187A0 (en) | 1989-01-25 |
IT1228394B true IT1228394B (en) | 1991-06-14 |
Family
ID=11155636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8919187A IT1228394B (en) | 1989-01-25 | 1989-01-25 | REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0379729A3 (en) |
IT (1) | IT1228394B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335375B4 (en) * | 1993-10-16 | 2009-04-16 | Deutsche Thomson-Brandt Gmbh | Power supply unit for supplying a gas discharge lamp |
EP1734561A3 (en) * | 2005-06-06 | 2012-01-25 | TBT Asset Management International Limited | High power cold cathode straight fluorescent lamp |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417181A (en) * | 1979-07-06 | 1983-11-22 | Sonelt Corporation | Electronic ballast |
GB2172451B (en) * | 1985-02-07 | 1989-06-14 | El Co Villamos Keszulekek Es S | Circuit system for igniting and lighting a high-pressure discharge lamp particulary a sodium vapour lamp |
DE3626209A1 (en) * | 1986-08-02 | 1988-02-04 | Telefunken Electronic Gmbh | Ballast for at least one discharge lamp |
US4745537A (en) * | 1987-01-23 | 1988-05-17 | Cheung P S | Low dissipation power converter |
-
1989
- 1989-01-25 IT IT8919187A patent/IT1228394B/en active
- 1989-12-27 EP EP19890123995 patent/EP0379729A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0379729A3 (en) | 1990-12-19 |
EP0379729A2 (en) | 1990-08-01 |
IT8919187A0 (en) | 1989-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0552108A3 (en) | Fluorescent energy transfer immunoassay | |
DE69412742T2 (en) | Inverter circuit used for a discharge tube | |
KR910021145U (en) | SMPS with auxiliary power discharge circuit | |
DE69412336D1 (en) | Low power pre-regulator power supply circuit | |
IT1179431B (en) | LOW HARMONIC POWER SUPPLY CONVERTER FOR GAS DISCHARGE LAMPS | |
GB8822087D0 (en) | Fluorescent tube power supply | |
NO942173D0 (en) | Low-loss booster converter | |
IT1178381B (en) | POWER SUPPLY FOR HIGH BRIGHTNESS INCANDESCENT LAMPS | |
IT1209703B (en) | ATTACK FOR FLUORESCENT LAMP IN GENERAL AND PARTICULARLY FOR "U" SHAPED FLUORESCENT TUBES. | |
DE69316960D1 (en) | Electron tube with semiconductor cathode | |
DE69208223T2 (en) | Current controlled half-bridge power converter | |
DE69325773T2 (en) | High-frequency power supply for neon tubes | |
IT1228394B (en) | REFERENCES IN FREQUENCY CONVERTER CIRCUITS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. | |
ITMI931353A0 (en) | HIGH EFFICIENCY DIRECT CURRENT CONVERTER | |
DE69303101T2 (en) | Cold cathode | |
IT8719639A0 (en) | IMPROVEMENT OF FREQUENCY CONVERTERS FOR THE POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. | |
IT8422081A0 (en) | FREQUENCY CONVERTER FOR POWER SUPPLY OF COLD CATHODE FLUORESCENT TUBES. | |
IT8721078V0 (en) | REFERENCES TO FREQUENCY CONVERTERS FOR THE POWER SUPPLY OF COLD FLUORESCENT TUBES. | |
IT8884143A0 (en) | POWER TRANSFORMER PARTICULARLY FOR NEON TUBES | |
KR960015851U (en) | Cathode ray tube power saving circuit of dual power supply method | |
IT1213282B (en) | PARALLEL SYSTEM FOR SWITCHING ON NEON TUBES, FLUORESCENT LAMPS AND SIMILAR | |
HU9200781D0 (en) | High-power electronic tube with cooled anode | |
ITTV20000088A0 (en) | HIGH FREQUENCY ELECTRONIC CONVERTER STRUCTURE PARTICULARLY FOR THE POWER SUPPLY OF COLD CATHODE LAMPS | |
IT208653Z2 (en) | ELECTRIC TRANSFORMER WITH DOUBLE OUTPUT PARTICULARLY FOR THE SUPPLY OF GRIDS AND HOT CATHODE LAMPS. | |
GB8516349D0 (en) | Fluorescent lighting circuits & fittings |