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Class Information
Number: 315/209R
Name: Electric lamp and discharge devices: systems > Periodic switch in the supply circuit
Description:


Sub-classes under this class:

Class Number Class Name Patents
315/209CD Capacitor dischargeneous ignition systems 170
315/224 Impedance or current regulator in the supply circuit 1,437
315/218 Magnetoelectric generator supply 27
315/209M Miscellaneous ignition systems 39
315/225 Periodic switch cut-out 299
315/219 Periodic switch in the primary circuit of the supply transformer 610
315/209PZ Piezoelectric ignition systems 62
315/210 Plural load device systems 67
315/226 Plural periodic switches or multiple contact periodic switch 210
315/209SC Silicon controlled rectifier ignition 98
315/209T Transistorized ignition systems 187


Patents under this class:

Patent Number Title Of Patent Date Issued
7432665 Method and device for driving a metal halide lamp Oct. 7, 2008
7432663 Circuit for igniting a high intensity discharge lamp Oct. 7, 2008
7432661 Electronic ballast having a flyback cat-ear power supply Oct. 7, 2008
7425804 Lamp drive device of projector Sep. 16, 2008
7425802 Discharge lamp lighting apparatus, luminaire and illumination system Sep. 16, 2008
7425800 Device for driving a light source module Sep. 16, 2008
7423389 LED driving device of overvoltage protection and duty control Sep. 9, 2008
7423388 Fixed lamp frequency synchronization with the resonant tank for discharge lamps Sep. 9, 2008
7420333 Mixed mode control for dimmable fluorescent lamp Sep. 2, 2008
7414372 Dimming ballast control circuit Aug. 19, 2008
7411359 Apparatus and method for providing dimming control of lamps and electrical lighting systems Aug. 12, 2008
7411355 Display device and driving device of light source for display device Aug. 12, 2008
7408329 Power supply unit for gas discharge processes Aug. 5, 2008
7408307 Ballast dimming control IC Aug. 5, 2008
7405522 Multiple failure detection shutdown protection circuit for an electronic ballast Jul. 29, 2008
7400100 Discharge-lamp lighting apparatus and projector Jul. 15, 2008
7397203 Fluorescent ballast with unique dimming control Jul. 8, 2008
7397196 Circuit arrangement for preventing high peak currents Jul. 8, 2008
7394207 Circuit arrangement having a full bridge with switching load relief for operating lamps Jul. 1, 2008
7394206 Electronic ballast with life-ended protection Jul. 1, 2008
7391167 Backlight assembly, display device and driving apparatus of light source for display device Jun. 24, 2008
7388335 Apparatus for providing a sinusoidally amplitude-modulated operating voltage, lighting system and method for generating an amplitude-modulated voltage Jun. 17, 2008
7385361 Ballast for high-pressure discharge lamp and method of operating the same Jun. 10, 2008
7382099 Striation control for current fed electronic ballast Jun. 3, 2008
7378804 Ballast for a discharge lamp with integrated control circuit for controlling switching element of dc power supply and inverter circuit May. 27, 2008
7378802 Discharge lamp lighting circuit May. 27, 2008
7378801 Driving circuit for inverter May. 27, 2008
7375476 Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices May. 20, 2008
7375474 Apparatus and method for driving backlight May. 20, 2008
7372214 Apparatus and method for driving lamp of liquid crystal display device May. 13, 2008
7372210 Method and apparatus for lamp heat control May. 13, 2008
7368884 DC/DC converter May. 6, 2008
7368881 Discharge lamp lighting apparatus and lamp system using the lighting apparatus May. 6, 2008
7368879 Pendulum resonant converter and method May. 6, 2008
7368878 Current-mode resonant ballast May. 6, 2008
7365500 Display device having lamp control circuit Apr. 29, 2008
7365498 Electrodeless discharge lamp lighting device and luminaire Apr. 29, 2008
7358689 Phase-control power controller for converting a line voltage to a RMS load voltage Apr. 15, 2008
7355356 Circuit arrangement and method for detecting a crest factor of a lamp current or a lamp operating voltage of an electric lamp Apr. 8, 2008
7355355 Discharge lamp lighting apparatus Apr. 8, 2008
7355354 Method for starting a discharge lamp using high energy initial pulse Apr. 8, 2008
7355351 Circuit arrangement having a converter without a transformer but with an inductor for the pulsed operation of dielectric barrier discharge lamps Apr. 8, 2008
7352134 Lamp containing fixed reverse phase switching power supply with time-based phase pulse triggering control Apr. 1, 2008
7348737 Lighting circuit for high-pressure discharge lamp Mar. 25, 2008
7348735 Lamp driver Mar. 25, 2008
7345434 Discharge lamp lighting apparatus and luminaire Mar. 18, 2008
7342362 Full-bridge soft switching inverter and driving method thereof Mar. 11, 2008
7339330 Methods and circuits for instant hot restart of high intensity discharge lamps Mar. 4, 2008
7336038 Method and apparatus for single-ended conversion of DC to AC power for driving discharge lamps Feb. 26, 2008
7332876 Lighting apparatus for discharge lamp Feb. 19, 2008



 
 
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