公开(公告)号：US08648618B1

公开(公告)日：2014-02-11

申请号：US13632882

申请日：2012-10-01

Applicant: Zippy Technology Corp.

Inventor： Tsun-Te Shih ,  Yu-Yuan Chang ,  Tsung-Chun Cheng ,  Heng-Chia Chang

IPC: G01R31/40

CPC classification number: G01R31/40

Abstract: Method and module for judging status alterations of power supplies that are caused by changes of external power sources are provided. Through comparing first, second and third comparison voltages with a stabilized voltage of a voltage stabilization and energy storage element in a power factor correction unit, the status of the power supply can be judged, and an external power supply abnormal signal, a power supply abnormal signal or a power failure alert signal can be generated according to the status to allow a motherboard to perform loading regulation. The power failure alert signal is used to timely stop operation of the power supply, hence can resolve the problems of the conventional techniques such as delay notification, inaccurate judgment or complex composition of judgment circuit.

Abstract translation: 提供了用于判断由外部电源变化引起的电源状态变化的方法和模块。 通过将功率因数校正单元中的第一，第二和第三比较电压与电压稳定和能量存储元件的稳定电压进行比较，可以判断电源的状态，外部电源异常信号，电源异常 可以根据状态产生信号或停电警报信号，以允许主板执行负载调节。 电源故障警报信号用于及时停止电源的运行，因此可以解决传统技术的问题，如延迟通知，判断电路不准确或组合复杂。