| Patents for H05B 41 - Circuit arrangements or apparatus for igniting or operating discharge lamps (35,100) |
|---|
| 01/29/1986 | EP0169673A1 Power supply with power factor correction |
| 01/28/1986 | US4567404 Ballast circuit having electromagnetic interference (EMI) reducing means for an improved lighting unit |
| 01/28/1986 | US4567403 High pressure discharge lamp with incorporated starter |
| 01/28/1986 | US4566769 Power supply unit for electronic flash |
| 01/28/1986 | CA1199961A1 Electronic ballast system |
| 01/22/1986 | EP0168947A1 A circuit for igniting a gas discharge tube |
| 01/15/1986 | EP0168087A1 High-pressure sodium discharge lamp |
| 01/14/1986 | US4564897 Power source |
| 01/14/1986 | CA1199363A1 Starting and operating circuit for gaseous discharge lamps |
| 01/08/1986 | CN85201206U Saving power supply long service life fluorescent lamp starter |
| 01/07/1986 | US4563719 Ballasts with built-in ground-fault protection |
| 01/07/1986 | US4563616 Non-saturating, self-driven switching inverter for gas discharge devices |
| 01/07/1986 | US4563071 For a camera |
| 01/07/1986 | CA1199078A1 Methods for operation of programmable signal control circuits |
| 01/01/1986 | CN85200233U Power saving duplex tube fluorescent lamp powered by 380-v 2-phase |
| 12/31/1985 | US4562527 Autoconverter with improved charging switch system |
| 12/31/1985 | US4562384 Variable reactance inductor with adjustable ranges |
| 12/31/1985 | US4562383 Inverter for use with a dc voltage source |
| 12/31/1985 | US4562382 Solid-state inverter including a multiple core transformer |
| 12/31/1985 | US4562381 Starting circuit for multiple fluorescent lamps |
| 12/31/1985 | US4562379 Glow switch starter having metal oxide deposit |
| 12/31/1985 | US4561751 Of a camera |
| 12/27/1985 | EP0165893A2 Brightness control device for a fluorescent lamp |
| 12/24/1985 | US4560908 High-frequency oscillator-inverter ballast circuit for discharge lamps |
| 12/24/1985 | US4560906 Lighting system and compact electric lighting unit |
| 12/18/1985 | EP0164774A1 Circuit device for controlling the running voltage of high-pressure gas-discharge lamps |
| 12/17/1985 | US4559479 Starting and dimming circuit for fluorescent lamps |
| 12/17/1985 | US4559478 Fluorescent lamp circuit |
| 12/17/1985 | CA1198155A1 Phase-controlled ballast having shifting control |
| 12/17/1985 | CA1198153A1 High frequency fluorescent lamp circuit |
| 12/10/1985 | US4558262 Load switching arrangement for gas discharge lamp circuit |
| 11/27/1985 | EP0162504A1 Electrodeless low-pressure discharge lamp |
| 11/27/1985 | EP0162156A1 Means and method for controlling lumen output and power consumption of phoshor excitable lamps |
| 11/26/1985 | US4555753 Rectifier circuit with two rectifiers |
| 11/26/1985 | US4555648 Electronic flash unit utilizing pre-flash illumination of flashtube |
| 11/26/1985 | US4555647 Ballast circuit for gas discharge tubes utilizing time-pulse additions |
| 11/19/1985 | US4554487 Electronic fluorescent lamp ballast with overload protection |
| 11/12/1985 | US4553072 Circuit connected in series with a discharge valve source |
| 11/12/1985 | US4553071 Electronic ballast for fluorescent lamp |
| 11/12/1985 | US4553070 Electronic ballast for a discharge lamp |
| 11/12/1985 | US4552868 14-Amino steroid derivatives, a process for the preparation thereof and method of use thereof |
| 10/29/1985 | US4550275 High efficiency pulse ultraviolet light source |
| 10/29/1985 | US4550272 Operating circuit for electric discharge lamp |
| 10/24/1985 | WO1985004778A1 Film video player with electronic strobe light |
| 10/24/1985 | WO1985004769A1 Process for releasibly connecting electric lighting apparatuses, adapter respectively ballast and circuit with a high frequency generator |
| 10/23/1985 | EP0159009A2 Circuit breaker with thin-walled bulb |
| 10/23/1985 | EP0158924A1 Neon sign control device |
| 10/22/1985 | CA1195724A1 Lead-type ballast apparatus with improved power factor for operating a high-intensity-discharge sodium lamp |
| 10/16/1985 | EP0158390A1 DC/AC converter for igniting and feeding a gas and/or vapour discharge lamp |
| 10/16/1985 | EP0158072A1 Electronic ballast for multiple fluorescent lamps |
| 10/15/1985 | US4547706 Inverter with a load circuit containing a series oscillating circuit and a discharge lamp |
| 10/15/1985 | US4547705 Discharge lamp lightening device |
| 10/10/1985 | WO1985004545A1 Ballast and control unit for electric discharge lamp |
| 10/09/1985 | EP0156846A1 Minimization of harmonic contents for mains operated solid state inverters driving gas discharge lamps |
| 10/08/1985 | US4546290 Ballast circuits for discharge lamp |
| 10/02/1985 | EP0156439A1 Electrical circuit arrangement for igniting and feeding a gas and/or vapour discharge tube |
| 10/01/1985 | US4544863 Power supply apparatus for fluorescent lamp |
| 10/01/1985 | US4544862 Lighting circuit for electric discharge lamp |
| 09/25/1985 | EP0155729A1 Circuit device for the AC operation of high-pressure discharge lamps |
| 09/25/1985 | EP0155303A1 Inverter circuit with a control circuit for leading transistors more effectively into a turned-off state. |
| 09/24/1985 | CA1194093A1 Sequence start lamp ballast with current spike suppression means |
| 09/18/1985 | EP0155099A1 Electric power-saving device for discharge lamps |
| 09/18/1985 | EP0155059A2 Circuit arrangement for switching the current in an inductive load |
| 09/10/1985 | US4540917 Pulse network for fluorescent lamp dimming |
| 09/04/1985 | EP0153345A1 Flash tube employing multiple flashes |
| 09/03/1985 | US4539513 Circuit arrangement for starting and operating a high-pressure gas discharge lamp |
| 08/29/1985 | WO1985003835A1 High frequency oscillating circuit for effecting a gas discharge and utilization thereof |
| 08/27/1985 | US4538095 Series-resonant electronic ballast circuit |
| 08/27/1985 | US4538094 Lamp ballast with near unity power factor and low harmonic content |
| 08/27/1985 | US4538093 Variable frequency start circuit for discharge lamp with preheatable electrodes |
| 08/27/1985 | US4538092 Dimmer and starting circuits for a fluorescent lamp |
| 08/27/1985 | CA1192605A1 Lighting system |
| 08/21/1985 | EP0152264A2 Fluorescent lamp device |
| 08/21/1985 | EP0152248A1 Fluorescent tube ignitor |
| 08/21/1985 | EP0152026A1 Feeding device for controlling the light intensity of at least one discharge lamp, and use of this device |
| 08/20/1985 | US4536680 Resistive lamp ballast with re-ignition circuit |
| 08/13/1985 | USRE31970 High efficiency ballast system for gaseous discharge lamps |
| 08/13/1985 | US4535399 Regulated switched power circuit with resonant load |
| 08/13/1985 | US4535271 High frequency circuit for operating a high-intensity, gaseous discharge lamp |
| 08/07/1985 | EP0150585A1 Output current controller for fluorescent lamp ballast |
| 08/07/1985 | EP0150536A1 Ballast adaptor for improving operation of fluorescent lamps |
| 08/07/1985 | EP0150237A1 Circuit arrangement for operating a high-pressure discharge lamp with a battery |
| 08/06/1985 | US4533854 Mechanism and method for controlling the temperature and output of a fluorescent lamp |
| 08/06/1985 | US4533853 Mechanism and method for controlling the temperature and output of a fluorescent lamp |
| 08/06/1985 | CA1191540A1 Line operated fluorescent lamp inverter ballast |
| 07/30/1985 | US4532456 Output circuit for an electronic ballast system |
| 07/23/1985 | US4531078 Control circuit for electronic flash |
| 07/23/1985 | US4530550 Power supply unit for electronic flash |
| 07/23/1985 | CA1190961A1 Electronic device for the starting and a.c.voltage operation of a gas and/or vapour discharge lamp |
| 07/17/1985 | EP0148754A2 Electrical circuit for providing input electrical signals to a gas filled electrical discharge device |
| 07/16/1985 | US4529914 High intensity discharge lamp ignition system |
| 07/16/1985 | US4529913 Device for controlling the light intensity of a fluorescent tube fed from a D.C. voltage |
| 07/16/1985 | US4529912 Mechanism and method for controlling the temperature and light output of a fluorescent lamp |
| 07/16/1985 | CA1190588A1 Dual cathode beam mode fluorescent lamp |
| 07/16/1985 | CA1190587A1 Single electrode beam mode fluorescent lamp for dc use |
| 07/10/1985 | EP0147922A1 Ballast circuits for lighting units |
| 07/10/1985 | EP0147881A1 Electrical device for igniting and supplying a gas- and/or vapour discharge lamp |
| 07/10/1985 | EP0147722A2 A high voltage system for an x-ray tube |
| 07/09/1985 | US4528482 Control of energy to fluorescent lighting |
| 07/09/1985 | US4527552 Endoscope apparatus |