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31. 发明申请

US20070285381A1 Inverter driving circuit for LCD backlight 失效
标题翻译：逆变驱动电路用于LCD背光
公开(公告)号：US20070285381A1
公开(公告)日：2007-12-13
申请号：US11808161
申请日：2007-06-07
申请人： Jung Chul Gong , Byoung Own Min , Yu Jin Jang , Sang Cheol Shin
发明人： Jung Chul Gong , Byoung Own Min , Yu Jin Jang , Sang Cheol Shin
IPC分类号： G09G3/36 , G09G5/00
CPC分类号： H05B41/2828 , G09G3/3406 , Y02B20/186
摘要： An inverter driving circuit for an LCD is switched on/off more stably to improve heating radiation characteristics and drive efficiency. In the driving circuit, a controller supplies a first driving signal. A level shifter provides a second driving signal. A first delay circuit delays a rising section of the first driving signal to provide the first driving signal. A second delay circuit delays a falling section of the second driving signal to provide the second driving signal. Also, a power switching circuit is provided. The inverter driving circuit for the LCD, when a switching device thereof is turned off, has less current flowing in the switching device, thereby generating less heat. In addition, the inverter driving circuit prevents heat generation caused by current flowing reversely in the switching device, thereby enhancing drive efficiency.
摘要翻译：用于LCD的逆变器驱动电路更稳定地接通/断开以提高加热辐射特性和驱动效率。在驱动电路中，控制器提供第一驱动信号。电平移位器提供第二驱动信号。第一延迟电路延迟第一驱动信号的上升部分以提供第一驱动信号。第二延迟电路延迟第二驱动信号的下降部分以提供第二驱动信号。另外，还提供了电源开关电路。用于LCD的逆变器驱动电路当其开关装置关闭时，在开关装置中流动的电流较少，从而产生较少的热量。此外，逆变器驱动电路防止在开关装置中逆流流动的热量产生，从而提高驱动效率。

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