EP0285417A3 - Commutateur semi-conducteur à démarrage doux - Google Patents
Commutateur semi-conducteur à démarrage doux Download PDFInfo
- Publication number
- EP0285417A3 EP0285417A3 EP88302885A EP88302885A EP0285417A3 EP 0285417 A3 EP0285417 A3 EP 0285417A3 EP 88302885 A EP88302885 A EP 88302885A EP 88302885 A EP88302885 A EP 88302885A EP 0285417 A3 EP0285417 A3 EP 0285417A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- current
- significantly
- control circuitry
- essentially constant
- 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.)
- Withdrawn
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
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/02—Switching on, e.g. with predetermined rate of increase of lighting current
Landscapes
- Electronic Switches (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8707636 | 1987-03-31 | ||
GB878707636A GB8707636D0 (en) | 1987-03-31 | 1987-03-31 | Switch |
US07/163,534 US5015921A (en) | 1988-03-17 | 1988-03-17 | Soft start solid state switch |
US163534 | 1988-03-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0285417A2 EP0285417A2 (fr) | 1988-10-05 |
EP0285417A3 true EP0285417A3 (fr) | 1989-03-01 |
Family
ID=26292081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88302885A Withdrawn EP0285417A3 (fr) | 1987-03-31 | 1988-03-30 | Commutateur semi-conducteur à démarrage doux |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0285417A3 (fr) |
JP (1) | JPS63308409A (fr) |
CA (1) | CA1314070C (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3839761A1 (de) * | 1988-11-25 | 1990-05-31 | Telefunken Electronic Gmbh | Schaltung zur steuerung des betriebs einer gluehlampe |
US4987348A (en) * | 1989-12-15 | 1991-01-22 | North American Philips Corporation | Bilevel current limiter |
GB2283586A (en) * | 1993-10-26 | 1995-05-10 | Brenda Olliver | A battery and lamp economising circuit for hazard warning devices |
FI991042A0 (fi) | 1999-05-06 | 1999-05-06 | Iws International Oy | Ohjauspiiri jännite- ja virtapiikin poistamiseksi |
US8237382B2 (en) | 2007-02-13 | 2012-08-07 | Osram Ag | LED module and method for operating at least one LED |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4390812A (en) * | 1981-06-25 | 1983-06-28 | Seidler Robert L | Regulator and switching circuit for flasher units |
WO1984000463A1 (fr) * | 1982-07-06 | 1984-02-02 | Stroede Aake | Dispositif de protection pour ampoules electriques a incandescence |
-
1988
- 1988-03-30 EP EP88302885A patent/EP0285417A3/fr not_active Withdrawn
- 1988-03-31 CA CA000563177A patent/CA1314070C/fr not_active Expired - Fee Related
- 1988-03-31 JP JP7667688A patent/JPS63308409A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4390812A (en) * | 1981-06-25 | 1983-06-28 | Seidler Robert L | Regulator and switching circuit for flasher units |
WO1984000463A1 (fr) * | 1982-07-06 | 1984-02-02 | Stroede Aake | Dispositif de protection pour ampoules electriques a incandescence |
Also Published As
Publication number | Publication date |
---|---|
CA1314070C (fr) | 1993-03-02 |
JPS63308409A (ja) | 1988-12-15 |
EP0285417A2 (fr) | 1988-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT NL SE |
|
17P | Request for examination filed |
Effective date: 19890814 |
|
17Q | First examination report despatched |
Effective date: 19910408 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910820 |