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

A power detection circuit and power detection technology, applied in the field of base stations, can solve the problems of lack of compensation function and value no longer adaptable, and achieve the effects of improving detection efficiency, reducing maintenance costs, and reducing the complexity of production calibration

Pending Publication Date: 2021-12-28
深圳市兆驰数码科技股份有限公司
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Problems solved by technology

[0003] Generally, a calibration table is used to compensate for DC and phase deviations. However, due to the lack of adaptive compensation function, the values ​​obtained by calibration on the production line will no longer adapt to factors such as component aging and temperature changes.

Method used

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

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Embodiment Construction

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0039] Such as figure 1 Shown is the circuit principle diagram of the power detection circuit of the present invention. A power detection circuit in the present invention is used for power detection of a communication base station, comprising a first adder 1.1, a first amplifier 1.2, a second adder 1.3, a second amplifier 1.4 and a phase shifter 1.6.

[0040] Specifically, the first adder 1.1 is used to access the signal Vi of the communication base station, and is also used to perform operations on the signal V3 and the signal Vi to generate a signal V1; the input terminal of the first amplifier 1.2 is connected to the first adder The output end of the adder 1.1 is electrically connected, and the first amplifier 1...

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Abstract

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 production efficiency is high, and the production calibration complexity is reduced.

Description

technical field [0001] The present invention relates to the technical field of base stations, in particular to a power detection circuit and method, and a DC and phase detection system and method. Background technique [0002] At present, in the linearized transmitter products of communication base station equipment on the market that adopts quadrature modulation technology and negative feedback technology for downlink, there are carrier leakage and stability problems, and calibration methods are generally used to overcome these two problems. [0003] Generally, a calibration table is used to compensate DC and phase deviations. However, due to the lack of self-adaptive compensation function, with the influence of factors such as component aging and temperature changes, the values ​​obtained by calibration on the production line will no longer adapt. So it is necessary to solve this problem. Contents of the invention [0004] The present invention aims to solve one of the ...

Claims

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Application Information

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IPC IPC(8): G01R21/133G01R19/25G01R25/00
CPCG01R21/133G01R19/25G01R25/00Y02D30/70
Inventor 颜海龙李相宏李峰肖乾友
Owner 深圳市兆驰数码科技股份有限公司
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