Method and Apparatus for Distinguishing Momentary Loss of Battery Contact from an Undervoltage Condition

摘要

A METHOD (300) AND APPARATUS (100), (200) FOR DISTINGUISHING MOMENTARY LOSS OF BATTERY CONTACT (104) FROM A BATTERY UNDERVOLTAGE CONDITION IN A PORTABLE DEVICE (100) SENSE THE CURRENT INTO THE PORTABLE DEVICE FROM THE BATTERY (102), AND WHEN THE CURRENT DROPS TO A LEVEL INDICATING THAT CONTACT WITH THE BATTERY (102) HAS BEEN LOST, THE PORTABLE DEVICE (100) IS ALLOWED TO OPERATE AT A LOWER VOLTAGE THAN A NOMINAL UNDERVOLTAGE LIMIT OF THE BATTERY (102) UNTIL CONTACT IS RESUMED (314). FIGURE 1