Title：Power detection circuit
Country：China
Patent No.：201310286996.2
Legal Status：Authorized
Inventor：Baoyong Chi, Bingqiao Liu, Xinwang Zhang, Zhihua Wang
Assignee：Tsinghua University
Address：Mailbox No. 82, Beijing 100084
Filing Date：2013-07-09
Issue Date：2016-12-28
Abstract：
The invention provides a power detection circuit. The power detection circuit comprises an I/Q input selective switch, a pre-amplification amplifier module, an adjustment amplifier module, a rectifier module and two stages of RC low pass filters. The I/Q input selective switch is used for selecting a source of input signals; the pre-amplification amplifier module is connected with the I/Q input selective switch; the adjustment amplifier module is connected with the pre-amplification amplifier module; the rectifier module is respectively connected with the pre-amplification amplifier module and the adjustment amplifier module; the two stages of RC low pass filters are connected with the rectifier module. By means of the power detection circuit, the detection accuracy of the power detection circuit can be improved.
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