| 摘要 |
An inverter for aging used for EEFL(External Electrode Fluorescent Lamp) and CCFL(Cold Cathode Fluorescent Lamp) is provided to prevent bit frequency generation by controlling inverter voltage with a PWM(Pulse Width Modulation) method. In an inverter for aging used for EEFL and CCFL, a synchronize module(10) controls by providing the inverter with a frequency synchronization signal, a phase synchronization signal, and a digital dimming signal. A main inverter board(20) is connected to the synchronize module(10) through a cable. The main inverter board(20) provides one stage of the lamp with a high voltage and precise current. A sub inverter board(30) is connected to the main inverter board(20) through the cable. The sub inverter board(30) provides an other stage of the lamp with the high voltage and precise current. An electrode board(21b,31b) connects the main inverter board(20), the sub inverter board(30) and the lamp. A bus bar(21a) supplies power and fixes the board. The bus bar(21a) is made of copper material. |
