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a power detector

A technology for power detectors and switch components, which is applied in the direction of electric power measurement, transmission systems, electrical components, etc. by applying digital technology, and can solve the problems of high power consumption and high power consumption of power detectors.

Active Publication Date: 2022-03-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing research, the power detector with high dynamic range contains more circuit modules. When the input power is large, the power consumption of the power detector is also high; thus, although the power detector has high dynamic range range, but the resulting high power consumption also limits its application

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0024] Such as figure 1 , figure 2 As shown, the embodiment of the present application provides a power detector with a high dynamic range and low power consumption; the power detector has a simple structure and is composed of a power supply, a capacitor, a switch component, a low-pass filter circuit and a load resistor, and has a parallel connection The principle is the same as the two implementation methods in s...

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Abstract

The embodiments of the present application relate to the technical field of electronic circuits, and in particular, to a power detector. The embodiment of the present application provides a power detector with high dynamic range and low power consumption. The power detector has a simple structure and is composed of a power supply, a capacitor, a switch component, a low-pass filter circuit and a load resistor. Two implementation methods, the principle is the same. The power detector described in the embodiment of the present application inputs a differential signal, utilizes the voltage and current characteristics of the switch component, and realizes the power detection of the input differential signal through a discharge circuit formed by the switch component and a capacitor.

Description

technical field [0001] The embodiments of the present application relate to the technical field of electronic circuits, and in particular, to a power detector. Background technique [0002] In modern communication systems, in order to maintain the stability of communication and prolong the battery life, it is indispensable to use power control technology in the transmitter to control the power of the transmitter's transmitted signal. Power detector (PowerDetector, PD) is an indispensable module in power control technology. The dynamic range (DynamicRange, DR) of the power detector determines the power range of the input signal that can be accurately detected. As the signal modulation method becomes more and more complicated, the peak-to-average ratio of the signal becomes larger, so that the power range of the input signal changes, so there are more and more researches on the power detector with high dynamic range. [0003] In the existing research, the power detector with...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/133H04B1/04H04B1/12
Inventor 李晨阳易翔文振财张军平
Owner HUAWEI TECH CO LTD