Power reduction measurement system and method
AssigneeUltrawatt Energy Systems, Inc.
InventorN. Edward Walker
Life of this patent
Estimating the term…
Abstract
A method and system for measuring an amount of power reduction is provided. A percentage or absolute reduction from full power is calculated. The percentage or absolute reduction in power is determined from voltage and current duty cycle information extracted from a comparison of the source waveform to a reference waveform.
Claims20
An AC power reduction measurement system for determining an amount of power reduction used by a load from an AC voltage source, said reduction measurement system comprising:
- an alternating reference signal generator;
- a comparator having a first input connected with the alternating reference signal generator and a second input connected with a line operable to carry a signal to be measured;
- and
- a processor operable to determine an amount of power reduction as a function of the output of the comparator.
A method for determining an amount of power reduction by an AC power reduction measurement system, said method comprising:
- (a) generating an alternating reference signal;
- (b) comparing the alternating reference signal with a signal to be measured;
- (c) reducing a power characteristic of the signal to be measured;
- and
- (d) calculating an amount of power reduction as a function of (b) and (c).
An AC power measurement system for determining an amount of power used by a load from an AC voltage source, said measurement system comprising:
- an alternating reference signal generator;
- first and second comparators, each of the first and second comparators having a first input connected with the alternating reference signal generator, the first comparator having a second input connected with a voltage signal line to be measured, and the second comparator having a second input connected with a current signal line to be measured;
- and
- a processor operable to determine an amount of power as a function of the output of the first and second comparators.
Dependencies are inferred from the claim text.