Patent ID: 7741828
Filing Date: 2010-06-22
Classification: G01R,G06F

Abstract:
1. A method for detecting disturbances in an alternating current (AC) supply input of an electronic device, comprising the steps of; providing a signal indicating a relationship between at least a portion of each cycle of a supplied AC input waveform and a threshold value; continuously detecting whether said supplied AC input waveform exceeds said threshold value, said signal indicating an undisturbed AC input waveform condition at said supply input when said supplied AC input waveform exceeds said threshold value, and said signal indicating an occurrence of a disturbed AC input waveform condition at said supply input when said supplied AC input does not exceed said threshold value; and initiating at least one action based upon at least one occurrence of when said signal indicates said disturbed AC input waveform condition exists at said supply input before regulated voltages of a regulated power supply of the electronic device fall below regulated tolerance limits.