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作为最为大众所熟知的电子消费设备,电视技术的快速发展对其供电需求产生了重要影响。由于LED能极大地提高电能使用效率并实现超薄的设计形式,已成为背光的优质光源。同时,消费者也希望电视生产商能够生产更多40寸甚至更大面板尺寸的液晶电视。因此,如今的电视背光系统的电源必须能够驱动大量的并联LED串,提供非常高的输出电压和负载电流。电视主板上的直流电源通常为12V或24V,但驱动LED串的电压则需达到60V甚至更高。由于面板尺寸不同,最大
As the most popular electronic consumer device, the rapid development of television technology has had a major impact on its power supply needs. As LED can greatly improve the efficiency of the use of electricity and achieve ultra-thin design, has become a high-quality light source backlight. At the same time, consumers also want TV makers to produce more LCD TVs in 40-inch and larger panels. Therefore, the power supply of today’s TV backlight systems must be capable of driving a large number of parallel LED strings, providing very high output voltage and load current. The DC power on the TV motherboard is usually 12V or 24V, but the voltage driving the LED string needs to reach 60V or higher. As the panel size is different, the largest