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Class Information
Number: 315/207
Name: Electric lamp and discharge devices: systems > Discharge device and/or rectifier in the supply circuit > Discharge device and/or rectifier in shunt to the load device
Description: Systems having the discharge device or rectifier connected in electrical shunt relation to the source of supply and the load device.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8664871 High voltage power supply for powering a magnetron in a UV curing lamp assembly Mar. 4, 2014
8653744 Driving circuit for LCD backlight source Feb. 18, 2014
8598797 LED driver for driving LED lighting device at high frequency Dec. 3, 2013
8573782 Discharge lamp drive device, discharge lamp drive method, light source device, and projector Nov. 5, 2013
8525427 Light-emitting diode lamp Sep. 3, 2013
8450950 Apparatus and method for controlling LED light strings May. 28, 2013
8450935 Controller circuit for half wave LED light strings May. 28, 2013
8450934 Circuit arrangement and method for operating a low-pressure discharge lamp May. 28, 2013
8314565 Solid state LED bridge rectifier light engine Nov. 20, 2012
8279162 Discharge lamp for dielectrically impeded discharge using a flat discharge vessel Oct. 2, 2012
8267554 Light emitting diode device Sep. 18, 2012
8258710 Solid state light source driving and dimming using an AC voltage source Sep. 4, 2012
8004212 Drive apparatus for a vacuum fluorescent display Aug. 23, 2011
7688006 Stepless dimming fluorescent lamp and ballast thereof Mar. 30, 2010
7667412 Light source driving device Feb. 23, 2010
7613020 Discharge lamp ballast apparatus comprising DC/DC converters having at least two transformers and outputting two kinds of voltages Nov. 3, 2009
7545102 Single-stage electronic ballast device Jun. 9, 2009
7518316 Half-wave rectification circuit with a low-pass filter for LED light strings Apr. 14, 2009
7407617 Free radical polymerization method having reduced premature termination, apparatus for performing the method, and product formed thereby Aug. 5, 2008
7283131 Image display apparatus Oct. 16, 2007
7276858 Decorative lighting string with stacked rectification Oct. 2, 2007
7224151 Fixed phase power controller with analog trigger May. 29, 2007
7081709 Method and apparatus for lighting a discharge lamp Jul. 25, 2006
6949889 Wide input voltage range light emitting diode driver Sep. 27, 2005
6831421 Shunt-induced high frequency excitation of dielectric barrier discharges Dec. 14, 2004
6808287 Method and apparatus for a pulsed L.E.D. illumination source Oct. 26, 2004
6788008 Device for operating a dielectric barrier discharge lamp Sep. 7, 2004
6724152 Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply Apr. 20, 2004
6534931 Dimming control system for electronic ballasts Mar. 18, 2003
6091207 Pump support choke Jul. 18, 2000
6051938 Dimmable ballast with active power feedback control Apr. 18, 2000
5977722 Device for applying particular voltage waveform for operating a discharge lamp Nov. 2, 1999
5854542 Flashing and diming fluorescent lamps for a gaming device Dec. 29, 1998
5811938 Emergency lighting ballast for starting and operating two compact fluorescent lamps with integral starter Sep. 22, 1998
5606224 Protection circuit for fluorescent lamps operating at failure mode Feb. 25, 1997
5583402 Symmetry control circuit and method Dec. 10, 1996
5510679 Reverse phase-controlled dimmer with integral power adjustment means Apr. 23, 1996
5506477 Method of sensing the rms value of a waveform Apr. 9, 1996
5463281 Circuit arrangement for operating a high-pressure discharge lamp Oct. 31, 1995
5369339 Circuit arrangement for reducing striations in a low-pressure mercury discharge lamp Nov. 29, 1994
5229690 Apparatus for operating discharge lamps utilizing a capacitor and charging circuit Jul. 20, 1993
5173642 Rare gas discharge fluorescent lamp device Dec. 22, 1992
5115168 Power supply for microwave discharge light source May. 19, 1992
5111115 Fluorescent lamp controller May. 5, 1992
5053682 Power supply for microwave discharge light source Oct. 1, 1991
5034661 Rare gas discharge fluorescent lamp device Jul. 23, 1991
5004953 Emergency lighting ballast for compact fluorescent lamps with integral starters Apr. 2, 1991
4988922 Power supply for microwave discharge light source Jan. 29, 1991
4937505 Energizing arrangement for a discharge lamp Jun. 26, 1990
4929871 Transformerless current-limiting circuit May. 29, 1990

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