Power detection circuit and method, and direct current and phase detection system and method

The invention relates to a power detection circuit and method, and a direct current and phase detection system and method. The power detection circuit comprises a first summator, a first amplifier, a second summator, a third amplifier and a phase shifter, the input end of the first amplifier is elec...

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Bibliographic Details
Main Authors LI FENG, YAN HAILONG, LI XIANGHONG, XIAO QIANYOU
Format Patent
LanguageChinese
English
Published 28.12.2021
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention relates to a power detection circuit and method, and a direct current and phase detection system and method. The power detection circuit comprises a first summator, a first amplifier, a second summator, a third amplifier and a phase shifter, the input end of the first amplifier is electrically connected with the output end of the first summator, and the input end of the second summator is electrically connected with the output end of the first amplifier; the input end of the third amplifier is electrically connected with the output end of the second summator; the input end of the fourth amplifier is electrically connected with the output end of the third amplifier; and the input end of the phase shifter is electrically connected with the output end of the fourth amplifier, and the output end of the phase shifter is electrically connected with the input end of the first summator. Compared with the prior art, the power detection efficiency can be improved, the maintenance cost is reduced, the prod
Bibliography:Application Number: CN202111234254