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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 190
315/224 Impedance or current regulator in the supply circuit 2,332
315/218 Magnetoelectric generator supply 29
315/209M Miscellaneous ignition systems 47
315/225 Periodic switch cut-out 418
315/219 Periodic switch in the primary circuit of the supply transformer 759
315/209PZ Piezoelectric ignition systems 69
315/210 Plural load device systems 134
315/226 Plural periodic switches or multiple contact periodic switch 288
315/209SC Silicon controlled rectifier ignition 107
315/209T Transistorized ignition systems 202


Patents under this class:

Patent Number Title Of Patent Date Issued
8710764 Solid state lighting circuit and controls Apr. 29, 2014
8710761 Circuit arrangement for a piezo transformer, and method therefor Apr. 29, 2014
8710755 Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof Apr. 29, 2014
8704462 Adaptive current regulation for solid state lighting Apr. 22, 2014
8704459 Two-wire dimmer circuit for a screw-in compact fluorescent lamp Apr. 22, 2014
8692486 DC/DC converter, control circuit thereof and lighting apparatus using the same Apr. 8, 2014
8692482 Circuitry to control a switching regulator Apr. 8, 2014
8692476 Boost circuit for LED backlight driver circuit Apr. 8, 2014
8692474 Electronic ballast circuit for lamps Apr. 8, 2014
8686658 Systems and methods for multi-state switch networks Apr. 1, 2014
8686657 Power supply device and light-emitting element drive device Apr. 1, 2014
8686656 Power supply device and light-emitting element drive device Apr. 1, 2014
8680788 Semiconductor light-emiting element driver circuit and light fixture using the same Mar. 25, 2014
8680785 Variable master current mirror Mar. 25, 2014
8680784 Dimmable offline LED driver Mar. 25, 2014
8680774 Electronic system and an electronic module therefor Mar. 25, 2014
8680771 Controller customization system with phase cut angle communication customization data encoding Mar. 25, 2014
8680769 Light-emitting-diode (LED) protection circuit Mar. 25, 2014
8674621 Constant current control circuit with multiple outputs for LED driver Mar. 18, 2014
8674614 Converter device Mar. 18, 2014
8674613 Power reforming methods and associated multiphase lights Mar. 18, 2014
8674610 Lighting apparatus and circuits for lighting apparatus Mar. 18, 2014
8669714 Method for dimming a light-emitting diode arrangement of a motor vehicle Mar. 11, 2014
8669710 LED module and LED light string using the same Mar. 11, 2014
8665922 Driver circuit of light-emitting element Mar. 4, 2014
8664895 Circuits and methods for driving light sources Mar. 4, 2014
8664894 Method and device for driving a fluorescent lamp Mar. 4, 2014
8664888 Power converter for a configurable light-emitting diode driver Mar. 4, 2014
8664879 Circuit for driving fluorescent lamp and light-emitting diode Mar. 4, 2014
8664877 Light driving apparatus Mar. 4, 2014
8659232 Variable-impedance load for LED lamps Feb. 25, 2014
8659231 Electronic ballast and method for operation of at least one discharge lamp Feb. 25, 2014
8653742 Control circuit of switching power supply for driving light emitting elements, and light emitting device and electronic apparatus using the same Feb. 18, 2014
8653740 Load control circuit Feb. 18, 2014
8653739 Circuit for operating light emitting diodes (LEDs) Feb. 18, 2014
8653735 Backlight module of liquid crystal display device Feb. 18, 2014
8648547 High efficiency LED lighting Feb. 11, 2014
8648544 Illumination lighting apparatus, illumination apparatus, and illumination system Feb. 11, 2014
8648543 Illumination driving circuit Feb. 11, 2014
8648530 Amalgam temperature maintaining device for dimmable fluorescent lamps Feb. 11, 2014
8643296 Color mixing and desaturation with reduced number of converters Feb. 4, 2014
8638039 Electronic ballast and method for providing a DC voltage component during lamp startup Jan. 28, 2014
8633652 Temperature-stabilized current regulation driver Jan. 21, 2014
8629625 Method and apparatus providing universal voltage input for solid state light fixtures Jan. 14, 2014
8624515 Fixing device of light-emitting body and lighting device Jan. 7, 2014
8618751 Phase control with adaptive parameters Dec. 31, 2013
8618747 Power factor correction circuit and driving method thereof Dec. 31, 2013
8618739 Circuit arrangement and method for operating discharge lamps Dec. 31, 2013
8614552 Detection of the position of an ELV dimmer for controlling operation of an isolated electrical load Dec. 24, 2013
8610366 Lighting ballast and method for balancing multiple independent resonant tanks Dec. 17, 2013











 
 
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