METHODS AND APPARATUS TO DETECT VOLTAGE CONDITIONS OF POWER SUPPLIES

摘要

Methods and apparatus to detect voltage conditions of power supplies are disclosed. An example power supply monitor (100) to detect fault conditions in a power supply (102) includes a capacitive element (104) communicatively coupled to the power supply (102), the capacitive element (104) being configured to change state between a collapsed state and an open state in response to the power supply (102) having a first voltage associated with a first fault condition of the power supply (102); a detector (108) communicatively coupled to the capacitive element (104) to detect a voltage spike generated from the state change of the capacitive element (104); and a signal generator (110) to generate a fault signal (112) in response to the voltage spike to indicate the power supply (102) being in the first fault condition.