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Class Information
Number: 315/277
Name: Electric lamp and discharge devices: systems > Pulsating or a.c. supply > Transformer in the supply circuit > Plural transformers in the supply circuit
Description: Systems provided with two or more transformers in the supply circuit of the load device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615936 |
Inductively powered apparatus |
Nov. 10, 2009 |
| 7605544 |
Current balancing circuit |
Oct. 20, 2009 |
| 7589478 |
Inverter circuit for discharge lamps for multi-lamp lighting and surface light source system |
Sep. 15, 2009 |
| 7579785 |
Multiple-light discharge lamp lighting device |
Aug. 25, 2009 |
| 7573205 |
Lamp-lighting apparatus |
Aug. 11, 2009 |
| 7567039 |
Multiple discharge lamp lighting apparatus |
Jul. 28, 2009 |
| 7560872 |
DC-AC converter having phase-modulated, double-ended, half-bridge topology for powering high voltage load such as cold cathode fluorescent lamp |
Jul. 14, 2009 |
| 7560875 |
Balancing transformers for multi-lamp operation |
Jul. 14, 2009 |
| 7557514 |
Inverter driving circuit |
Jul. 7, 2009 |
| 7550928 |
Driving circuit for multiple cold cathode fluorescent lamps backlight applications |
Jun. 23, 2009 |
| 7541747 |
Multiple discharge lamp lighting apparatus |
Jun. 2, 2009 |
| 7531968 |
Inverter circuit, backlight and liquid crystal display |
May. 12, 2009 |
| 7525257 |
Device for driving light sources |
Apr. 28, 2009 |
| 7492107 |
Device for driving light source module |
Feb. 17, 2009 |
| 7489087 |
Backlight inverter and method of driving same |
Feb. 10, 2009 |
| 7479739 |
Inverter circuit, backlight assembly and liquid crystal display with the same |
Jan. 20, 2009 |
| 7477022 |
System and method for driving a multi-lamp |
Jan. 13, 2009 |
| 7477023 |
Inverter circuit and backlight assembly having the same |
Jan. 13, 2009 |
| 7459863 |
Transformer and multi-lamp driving circuit using the same |
Dec. 2, 2008 |
| 7449842 |
Discharge tube drive circuit |
Nov. 11, 2008 |
| 7446485 |
Multi-lamp driving system |
Nov. 4, 2008 |
| 7443112 |
Current balancing circuit for a multi-lamp system |
Oct. 28, 2008 |
| 7443108 |
Apparatus for driving a plurality of lamps |
Oct. 28, 2008 |
| 7439684 |
Inductive lamp assembly |
Oct. 21, 2008 |
| 7439685 |
Current balancing technique with magnetic integration for fluorescent lamps |
Oct. 21, 2008 |
| 7439686 |
Discharge-lamp lighting apparatus |
Oct. 21, 2008 |
| 7432669 |
Backlight unit and method for driving the same |
Oct. 7, 2008 |
| 7411358 |
Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly |
Aug. 12, 2008 |
| 7411357 |
Liquid crystal and device of driving light source therefor |
Aug. 12, 2008 |
| 7408306 |
Lamp lighting circuit and device, and lamp lighting apparatus and device |
Aug. 5, 2008 |
| 7402957 |
Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly |
Jul. 22, 2008 |
| 7394213 |
Multi-lamp driver |
Jul. 1, 2008 |
| 7391166 |
Parallel lighting system for surface light source discharge lamps |
Jun. 24, 2008 |
| 7372213 |
Lamp current balancing topologies |
May. 13, 2008 |
| 7372211 |
Cold cathode tube lighting device and driving method and integrated circuit to be used in same |
May. 13, 2008 |
| 7358684 |
Balanced circuit for multi-LED driver |
Apr. 15, 2008 |
| 7336039 |
Driving device for discharge lamps |
Feb. 26, 2008 |
| 7315132 |
Apparatus for driving lamp of liquid crystal display device |
Jan. 1, 2008 |
| 7285921 |
Electric current balancing device |
Oct. 23, 2007 |
| 7282868 |
Inverter circuit for discharge lamps for multi-lamp lighting and surface light source system |
Oct. 16, 2007 |
| 7282871 |
Backlight inverter for inductively detecting current |
Oct. 16, 2007 |
| 7279849 |
Apparatus for driving backlight of liquid crystal display |
Oct. 9, 2007 |
| 7271549 |
Current balancing circuit for a multi-lamp system |
Sep. 18, 2007 |
| 7253564 |
Lamp current balancing device |
Aug. 7, 2007 |
| 7253569 |
Open lamp detection in an EEFL backlight system |
Aug. 7, 2007 |
| 7250726 |
Systems and methods for a transformer configuration with a tree topology for current balancing in gas discharge lamps |
Jul. 31, 2007 |
| 7239091 |
Discharge lamp lighting apparatus for lighting multiple discharge lamps |
Jul. 3, 2007 |
| 7227316 |
Protective and measure device for multiple cold cathode fluorescent lamps |
Jun. 5, 2007 |
| 7224129 |
Discharge lamp drive apparatus and liquid crystal display apparatus |
May. 29, 2007 |
| 7205726 |
Discharge lamp drive apparatus and liquid crystal display apparatus |
Apr. 17, 2007 |
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