| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| GB08213773AGB2120870B (en) | 1982-05-12 | 1982-05-12 | Electronic ballast for gas discharge lamps and fluorescent lamps | 
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| GB08213773AGB2120870B (en) | 1982-05-12 | 1982-05-12 | Electronic ballast for gas discharge lamps and fluorescent lamps | 
| Publication Number | Publication Date | 
|---|---|
| GB2120870A GB2120870A (en) | 1983-12-07 | 
| GB2120870Btrue GB2120870B (en) | 1986-03-12 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB08213773AExpiredGB2120870B (en) | 1982-05-12 | 1982-05-12 | Electronic ballast for gas discharge lamps and fluorescent lamps | 
| Country | Link | 
|---|---|
| GB (1) | GB2120870B (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US4663570A (en)* | 1984-08-17 | 1987-05-05 | Lutron Electronics Co., Inc. | High frequency gas discharge lamp dimming ballast | 
| ZA862614B (en)* | 1986-04-08 | 1986-12-30 | David John Cockram | Controller for gas discharge lamps | 
| EP0406285A1 (en)* | 1988-03-18 | 1991-01-09 | Stylux Gesellschaft Für Lichtelektronik M.B.H. | Circuit arrangement for monitoring the duty cycle of a transistor | 
| FR2655230B2 (en)* | 1989-11-24 | 1994-07-29 | Valeo Vision | SUPPLY CIRCUIT FOR AN ARC LAMP, PARTICULARLY FOR A MOTOR VEHICLE PROJECTOR. | 
| FR2645392B1 (en)* | 1989-03-31 | 1993-12-03 | Valeo Vision | SUPPLY CIRCUIT FOR AN ARC LAMP, PARTICULARLY FOR A MOTOR VEHICLE PROJECTOR | 
| US5065072A (en)* | 1989-03-31 | 1991-11-12 | Valeo Vision | Power supply circuit for an arc lamp, in particular for a motor vehicle headlight | 
| US5103138A (en)* | 1990-04-26 | 1992-04-07 | Orenstein Edward D | Switching excitation supply for gas discharge tubes having means for eliminating the bubble effect | 
| US5173643A (en)* | 1990-06-25 | 1992-12-22 | Lutron Electronics Co., Inc. | Circuit for dimming compact fluorescent lamps | 
| US5101142A (en)* | 1990-09-05 | 1992-03-31 | Applied Lumens, Ltd. | Solid-state ballast for fluorescent lamp with multiple dimming | 
| US5231333A (en)* | 1990-11-14 | 1993-07-27 | Neon Dynamics, Inc. | Switching excitation supply for gas discharge tubes having means for eliminating the bubble effect | 
| NO913368D0 (en)* | 1991-08-27 | 1991-08-27 | Julius Hartai | FREQUENCY MODULATED DRIVER WITH PARALLEL RESONANCE. | 
| US5453668A (en)* | 1994-03-23 | 1995-09-26 | Chow; Shing C. | Method and circuitry for producing dynamic illumination of discharge lamp | 
| TW381409B (en)* | 1996-03-14 | 2000-02-01 | Mitsubishi Electric Corp | Discharging lamp lighting device | 
| JP2002154074A (en)* | 2000-11-16 | 2002-05-28 | Makita Corp | Lighting system for power tool | 
| RU2215361C1 (en)* | 2002-02-13 | 2003-10-27 | Общество с ограниченной ответственностью Научно-конструкторское внедренческое предприятие "Петра" | Bridge inverter | 
| DE102005022559A1 (en)* | 2005-05-17 | 2006-11-30 | Johannes Gies | Circuit arrangement for electronic ballast, has power switch, which is locked and current flow to fluorescent lamp is interrupted, due to reduction of effective voltage, so that power value at lamp is held constant | 
| RU2768380C1 (en)* | 2021-08-17 | 2022-03-24 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Frequency multiplier current inverter | 
| Publication number | Publication date | 
|---|---|
| GB2120870A (en) | 1983-12-07 | 
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| Date | Code | Title | Description | 
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |