NL7309901A - - Google Patents
Info
- Publication number
- NL7309901A NL7309901A NL7309901A NL7309901A NL7309901A NL 7309901 A NL7309901 A NL 7309901A NL 7309901 A NL7309901 A NL 7309901A NL 7309901 A NL7309901 A NL 7309901A NL 7309901 A NL7309901 A NL 7309901A
- Authority
- NL
- Netherlands
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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3316672 | 1972-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7309901A true NL7309901A (it) | 1974-01-16 |
Family
ID=10349413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7309901A NL7309901A (it) | 1972-07-14 | 1973-07-16 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE802318A (it) |
| DE (1) | DE2335589A1 (it) |
| FR (1) | FR2193298B3 (it) |
| IT (1) | IT991188B (it) |
| LU (1) | LU68014A1 (it) |
| NL (1) | NL7309901A (it) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE418775B (sv) * | 1980-07-18 | 1981-06-22 | Aos Metall Mek Verk | Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap |
| DE3122183C2 (de) * | 1981-06-04 | 1983-09-22 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zum Betrieb einer Hochdruck-Metalldampfentladungslampe und Schaltungsanordnung zur Ausübung dieses Verfahrens |
| US4705991A (en) * | 1981-06-04 | 1987-11-10 | U.S. Philips Corporation | Method of operating a high-pressure metal vapor discharge lamp and circuit arrangement for carrying out this method |
| GB8711131D0 (en) * | 1987-05-12 | 1987-06-17 | Emi Plc Thorn | Power supply |
| US4980611A (en) * | 1988-04-05 | 1990-12-25 | Neon Dynamics Corporation | Overvoltage shutdown circuit for excitation supply for gas discharge tubes |
| US4916362A (en) * | 1988-04-05 | 1990-04-10 | Neon Dynamics Corporation | Excitation supply for gas discharge tubes |
| EP0439861A1 (en) * | 1990-01-29 | 1991-08-07 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
| US5386181A (en) * | 1992-01-24 | 1995-01-31 | Neon Dynamics Corporation | Swept frequency switching excitation supply for gas discharge tubes |
-
1973
- 1973-07-13 LU LU68014D patent/LU68014A1/xx unknown
- 1973-07-13 DE DE19732335589 patent/DE2335589A1/de active Pending
- 1973-07-13 BE BE133458A patent/BE802318A/xx unknown
- 1973-07-13 FR FR7325863A patent/FR2193298B3/fr not_active Expired
- 1973-07-13 IT IT2659173A patent/IT991188B/it active
- 1973-07-16 NL NL7309901A patent/NL7309901A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE802318A (fr) | 1973-11-05 |
| FR2193298A1 (it) | 1974-02-15 |
| FR2193298B3 (it) | 1976-07-02 |
| DE2335589A1 (de) | 1974-01-31 |
| IT991188B (it) | 1975-07-30 |
| LU68014A1 (it) | 1973-10-03 |