FI913220A0 - LJUSHETSSTYR-coupling device. - Google Patents
LJUSHETSSTYR-coupling device.Info
- Publication number
- FI913220A0 FI913220A0 FI913220A FI913220A FI913220A0 FI 913220 A0 FI913220 A0 FI 913220A0 FI 913220 A FI913220 A FI 913220A FI 913220 A FI913220 A FI 913220A FI 913220 A0 FI913220 A0 FI 913220A0
- Authority
- FI
- Finland
- Prior art keywords
- circuit
- voltage
- low
- synchronous
- propagation time
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/006—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for non-insulated low-voltage distribution systems, e.g. low-voltage halogen-lamp system
-
- 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
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/044—Controlling the light-intensity of the source continuously
- H05B39/045—Controlling the light-intensity of the source continuously with high-frequency bridge converters
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Television Receiver Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Handcart (AREA)
- Inverter Devices (AREA)
- Air Bags (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A dimmer circuit for a load circuit having a low-voltage halogen light or lights (NV) and a power transformer (Tr) or power transmitter connected upstream thereof, for variation of the real power taken from an AC voltage supply and emitted to a load circuit (Tr, NV) has: a high-frequency AC voltage generator (20) which emits an output AC voltage (uW) from an essentially smoothed or unsmoothed, rectified low-frequency intermediate circuit voltage (uN) to the load circuit (Tr, NV) and a variable delay switching element or a digital/analog propagation time element, in particular a lowpass filter (PT1) consisting of a variable resistor (R4, R5, P) and a synchronous capacitor (C1) in a series circuit. The circuit arrangement is intended to be designed such that an improved (in particular reduced in size) dimmer circuit permits continuous dimming control between zero and maximum of, in particular, low-voltage halogen lamps. This is achieved according to the invention by providing a synchronous circuit (V5, V7, TH; R16, V13) which is connected on the output side to the delay switching element, to the propagation time element or to the synchronous capacitor (C1) of the lowpass filter (PT1) and, on the input side, is supplied from the rectified intermediate circuit voltage (uN) or the AC voltage supply. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4021640A DE4021640A1 (en) | 1990-07-06 | 1990-07-06 | BRIGHTNESS CONTROL CIRCUIT ARRANGEMENT |
DE4021640 | 1990-07-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI913220A0 true FI913220A0 (en) | 1991-07-03 |
FI913220A FI913220A (en) | 1992-01-07 |
FI106356B FI106356B (en) | 2001-01-15 |
Family
ID=6409832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI913220A FI106356B (en) | 1990-07-06 | 1991-07-03 | The brightness control switching device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0466031B1 (en) |
AT (1) | ATE125100T1 (en) |
DE (2) | DE4021640A1 (en) |
FI (1) | FI106356B (en) |
NO (1) | NO300710B1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4201744C2 (en) * | 1992-01-23 | 1997-12-11 | Insta Elektro Gmbh & Co Kg | Additional circuit in a switching power supply for low-voltage halogen lamps |
KR940005192A (en) * | 1992-08-26 | 1994-03-16 | 에프.제이.스미트 | Circuit arrangement for incandescent lamp operation |
DE4242120A1 (en) * | 1992-08-28 | 1994-03-03 | Tridonic Bauelemente Gmbh Dorn | Automatic zero point detection |
DE4228647A1 (en) * | 1992-08-28 | 1994-03-03 | Tridonic Bauelemente Gmbh Dorn | Start-up circuit for electronic transformers |
DE4228682A1 (en) * | 1992-08-28 | 1994-03-03 | Tridonic Bauelemente Gmbh Dorn | Ballast for a gas discharge lamp with an inverter circuit |
DE4238471C2 (en) * | 1992-11-14 | 2001-05-31 | Insta Elektro Gmbh & Co Kg | Protection circuit with overcurrent and overvoltage detection in switching power supplies for AC and DC connection, especially for the operation of low-voltage halogen lamps |
US5352958A (en) * | 1992-11-19 | 1994-10-04 | Cunningham David W | Lighting control system dimmer module with plug-in electrical contacts |
JP3531177B2 (en) * | 1993-03-11 | 2004-05-24 | ソニー株式会社 | Compressed data recording apparatus and method, compressed data reproducing method |
DE4333610A1 (en) * | 1993-10-01 | 1995-04-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating low-voltage halogen incandescent lamps |
DE4340672C2 (en) * | 1993-11-30 | 1995-10-26 | Epv Electronic Gmbh | Dimmer circuit for a lighting current with low-loss power level |
EP0668647B1 (en) * | 1994-02-21 | 1998-08-12 | Tridonic Bauelemente GmbH | Electronic transformer |
DE4416400A1 (en) * | 1994-05-09 | 1995-11-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating electric light bulbs |
DE4416401A1 (en) * | 1994-05-09 | 1995-11-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating electric lamps |
DE19500615B4 (en) * | 1995-01-11 | 2006-10-19 | Tridonicatco Gmbh & Co. Kg | Brightness control circuit for incandescent lamps |
EP0752805A1 (en) * | 1995-07-05 | 1997-01-08 | MAGNETEK S.p.A. | Electronic converter with thermal protection circuit |
IL126967A (en) * | 1998-11-09 | 2002-09-12 | Lightech Electronics Ind Ltd | Electronic transformer for lighting |
DE102004018371A1 (en) * | 2004-04-13 | 2005-11-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast with digital control of dimming operations |
US7923934B2 (en) * | 2007-10-31 | 2011-04-12 | Techtronic Power Tools Technology Limited | Battery-powered fluorescent lamp |
CN101521978A (en) * | 2008-02-29 | 2009-09-02 | 皇家飞利浦电子股份有限公司 | Adjustable-light output circuit and electronic ballast used for a lamp |
DE102012007450B4 (en) | 2012-04-13 | 2024-02-22 | Tridonic Gmbh & Co Kg | Converter for a light source, LED converter and method for operating an LLC resonance converter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4506318A (en) * | 1983-04-22 | 1985-03-19 | Nilssen Ole K | Inverter with controllable RMS output voltage magnitude |
GB2204191A (en) * | 1987-02-25 | 1988-11-02 | Xyxx Inc | Lighting adaptor |
DE3806909A1 (en) * | 1988-03-03 | 1989-09-07 | Beme Electronic Gmbh | SWITCHING POWER SUPPLY |
-
1990
- 1990-07-06 DE DE4021640A patent/DE4021640A1/en not_active Withdrawn
-
1991
- 1991-07-03 FI FI913220A patent/FI106356B/en active
- 1991-07-04 AT AT91111128T patent/ATE125100T1/en not_active IP Right Cessation
- 1991-07-04 EP EP91111128A patent/EP0466031B1/en not_active Expired - Lifetime
- 1991-07-04 DE DE59105963T patent/DE59105963D1/en not_active Expired - Fee Related
- 1991-07-05 NO NO912637A patent/NO300710B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE125100T1 (en) | 1995-07-15 |
DE59105963D1 (en) | 1995-08-17 |
NO912637D0 (en) | 1991-07-05 |
NO912637L (en) | 1992-01-07 |
FI106356B (en) | 2001-01-15 |
FI913220A (en) | 1992-01-07 |
EP0466031B1 (en) | 1995-07-12 |
NO300710B1 (en) | 1997-07-07 |
DE4021640A1 (en) | 1992-01-09 |
EP0466031A1 (en) | 1992-01-15 |
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