Method for computing an amount of energy taken from a battery

Details Method for computing an amount of energy taken from a battery Method for computing an amount of energy taken from a battery

2005-05-10

2005-05-10

Patel, Rajnikant B. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C320S132000, C320S118000, C324S428000

Reexamination Certificate

active

06891355

ABSTRACT:
A method to compute an amount of energy taken from a battery coupled to a switching power converter is disclosed. The switching power converter charges a capacitor to a voltage and by the application of one or more control pulses to the switching power converter the voltage on the capacitor is maintained within a predetermined range having an upper voltage. The voltage on the capacitor is sampled and one or more control pulses are applied to the switching power converter to raise the voltage on the capacitor to the upper voltage. The amount of energy taken from the battery is computed based on measurement of a change in voltage on the capacitor over an elapsed time.

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