Methods and circuits are disclosed for converting DC power to AC power for driving discharge lamps such as cold cathode fluorescent lamps (CCFLs). Among other advantages, the lamp current and open lamp voltage can be regulated by a simple control scheme....http://www.google.com.au/patents/US7560879?utm_source=gb-gplus-sharePatent US7560879 - Method and apparatus for DC to AC power conversion for driving discharge lamps
