摘要
随着电源能效规范标准逐渐提高,LCDTV开关电源也需要不断提升能效。为此,提出了从PFC预调节器、主DC/DC级到待机转换器的解决方案。详细地说明了基于NCP1654的PFC预调节器解决方案、基于ICE2QS02G的准谐振反激式主DC/DC级解决方案以及基于ICE3BR4765J的反激式待机转换器解决方案。系统性能的测评结果说明解决方案是合理的。
With the power-efficiency standards of power supply improving gradually, the power-efficiency level of LCD TV switching power supply also need to be continuously improved. Therefore, the solutions on PFC pre-regulator, main DC/DC stage and standby converter are presented. In this paper, the solution of PFC pre-regulator based on NCP1654, the quasiresonant fly-back main DC/DC stage based on ICE2QS02G and fly-back stand-by converter based on ICE3BR4765J are all explained in detail. The evaluation results of the system performances show that the solutions are reasonable.
出处
《电视技术》
北大核心
2010年第7期57-60,共4页
Video Engineering
