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US 10,082,528 B2Granted
Power detector
AssigneeMediatek Inc.
InventorsMeng-Hung Chen, Osama K. A. Shana'a, YuenHui Chee, Chiyuan Lu
Life of this patent
Estimating the term…
Abstract
Some embodiments relate to power detector including a voltage sensor configured to detect a voltage of a load and a current sensor configured to detect a current of the load. The power detector also includes circuitry configured to introduce a phase delay between the detected voltage of the load and the detected current of the load, thereby producing a voltage measurement and a current measurement. The circuitry is also configured to multiply the voltage measurement and the current measurement.
Claims28
A power detector, comprising:
- a voltage sensor configured to detect a voltage of a load;
- a current sensor configured to detect a current of the load;
- and
- circuitry configured to:
- add a phase delay to the detected voltage of the load, the detected current of the load, or both the detected voltage of the load and the detected current of the load, to compensate for a variation in an impedance of the load and make a power measurement insensitive to changes in voltage standing wave ratio (VSWR), thereby producing a voltage measurement and a current measurement;
- and
- multiply the voltage measurement and the current measurement to produce the power measurement.
4 more elements
A power detection method, comprising,
- detecting a voltage of a load;
- detecting a current of the load;
- add a phase delay to the detected voltage of the load, the detected current of the load, or both the detected voltage of the load and the detected current of the load, to compensate for a variation in an impedance of the load and make a power measurement insensitive to changes in voltage standing wave ratio (VSWR), thereby producing a voltage measurement and a current measurement;
- and
- multiplying the voltage measurement and the current measurement to produce the power measurement.
2 more elements
Dependencies are inferred from the claim text.