公开(公告)号：US09058766B2

公开(公告)日：2015-06-16

申请号：US13649821

申请日：2012-10-11

Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD

Inventor： HaiBo Zhang ,  Jin Li

IPC: H02H3/20 ,  H05B37/02 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2330/02 ,  G09G2330/08 ,  G09G2330/10

Abstract: A device and method for detecting a short circuit in an electrical component during a start-up routine. In an embodiment, a device may have a problematic display having a short circuit that may result in damage to other components of the device if the device were allowed to fully startup during a normal start-up routine. Thus, power supplied to the panel may be initiated in stages so as to monitor any current that may be flowing through the panel, which in turn, may be indicative of a short circuit in the panel. If enough “leakage” current is detected through the panel during this staged startup routine, then a short-circuit detection circuit may interrupt the startup routine and lock out the operation of the device until the detected short circuit in the panel can be addressed.

Abstract translation: 一种用于在启动程序期间检测电气部件中的短路的装置和方法。 在一个实施例中，如果设备在正常启动程序中被允许完全启动，则设备可能具有可能导致设备的其他组件损坏的短路的有问题的显示。 因此，提供给面板的功率可以分阶段地启动，以便监视可能流过面板的任何电流，这又可能表示面板中的短路。 如果在此分段启动程序期间通过面板检测到足够的“泄漏”电流，则短路检测电路可能会中断启动程序并锁定设备的操作，直到可以寻址检测到的面板短路。