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US 7,923,983 B2Granted
Method and apparatus for measuring AC voltages
AssigneeEnphase Energy, Inc.
InventorMartin Fornage
Life of this patent
Estimating the term…
Abstract
A method and apparatus for providing AC voltage measurements. The apparatus includes an AC voltage monitor for determining at least a first and a second voltage representing an AC voltage of an AC circuit, generating a serial data stream frame including data representing the at least a first and a second voltage, and transmitting the serial data stream frame.
Claims17
Apparatus for providing AC voltage measurements, comprising:
- an AC voltage monitor for determining at least a first and a second voltage representing an AC voltage of an AC circuit, generating a serial data stream frame comprising data representing the at least a first and a second voltage, and transmitting the serial data stream frame;
- and
- wherein the AC voltage monitor obtains a first, a second, and a third voltage sample of the AC voltage and computes a difference between the first and the third voltage samples and a difference between the second and the third voltage samples to obtain the first voltage and the second voltage, respectively.
A method for providing AC voltage measurements, comprising:
- determining at least a first and a second voltage representing an AC voltage of an AC circuit;
- creating a serial data stream frame comprising data representing the at least a first and a second voltage;
- transmitting the serial data stream frame;
- and
- wherein the determining at least a first and a second voltage comprises:
- obtaining a first, a second, and a third voltage sample of the AC voltage;
- and
- computing a difference between the first and the third voltage samples and a difference between the second and the third voltage samples.
5 more elements
A system for providing AC voltage measurements, comprising:
- an AC voltage monitor for (i) generating a plurality of serial data stream frames, each of the plurality of serial data stream frames comprising data representing at least a first and a second voltage of an AC voltage of an AC circuit and a frame word, and (ii) transmitting the plurality of serial data stream frames as a serial data stream;
- a device for receiving the serial data stream transmitted from the AC voltage monitor;
- and
- wherein the AC voltage monitor obtains a first, a second, and a third voltage sample of the AC voltage and computes a difference between the first and the third voltage samples and a difference between the second and the third voltage samples to obtain the first voltage and the second voltage, respectively.
1 more element
Dependencies are inferred from the claim text.