Patent ID: 7230390

Claim:
A cold cathode fluorescent lamp (CCFL) assembly, comprising: a first pair and a second pair of CCFLs, each CCFL having first and second terminals; and an inverter-type drive circuit including a first transformer including a primary winding adapted to be coupled to a power supply module, and a secondary winding having a pair of terminals, said first terminals of said first pair of CCFLs being coupled respectively to said terminals of said secondary winding, and a second transformer having a primary winding adapted to be coupled to the power supply module, and coupled to said push-pull drive circuit, said second transformer further having a secondary winding having a pair of terminals, said first terminals of said second pair of CCFLs being coupled respectively to said terminals of said secondary winding of said second transformer; and a push-pull drive circuit coupled to said primary winding of said first transformer, and adapted to be coupled to the power supply module, said push-pull drive circuit exciting said primary winding of said first transformer upon receiving power from the power supply module such that power is transferred from said primary winding to said secondary winding, thus activating said first pair of CCFLs coupled thereto and exciting said primary winding of said second transformer upon receiving power from the power supply module such that power is transferred from said primary winding of said second transformer to said secondary winding of said second transformer, thus activating said second pair of CCFLs coupled thereto.