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Power detection method and device

A power detection and power level technology, which is applied in the field of power detection methods and related devices, can solve problems such as inability to provide good quality, and achieve the effect of saving costs

Inactive Publication Date: 2015-12-23
MEDIATEK SINGAPORE PTE LTD SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the existing technology cannot provide a good solution for users, therefore, innovative methods are needed to improve the power detection performance of electronic devices

Method used

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  • Power detection method and device

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Embodiment Construction

[0015] Certain terms are used in the specification and following claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This description and the subsequent claims do not use the difference in name as the way to distinguish components, but use the difference in function of the components as the criterion for distinguishing. "Includes" mentioned throughout the specification and subsequent claims is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0016] Please ...

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Abstract

An apparatus for performing power detection includes a squarer module and a calibration module that is coupled to the squarer module, where the squarer module includes a first squarer and a second squarer. The first squarer is arranged to convert an input signal of the squarer module into a first squarer output signal. In addition, the second squarer is arranged to output a second squarer output signal while a predetermined voltage level is input into an input terminal of the second squarer. Additionally, the calibration module is arranged to compare a difference between the first squarer output signal and the second squarer output signal with a reference signal to generate a comparison signal, and to compensate the difference according to the comparison signal, so as to perform a calibration on the apparatus. A method for performing power detection is also provided, and can be performed by utilizing the apparatus.

Description

【Technical field】 [0001] The present invention relates to power detection with correction taking factors such as mismatch, manufacturing process and voltage variation into consideration, especially to a power detection method and a related device. 【Background technique】 [0002] According to the prior art, a metal oxide semiconductor (MOS) device biased in the saturation region can be used as a squarer, which can be used for power detection in wide-band applications. When the requirement of the power detection range is very wide, some problems will occur. For example, in the prior art, a large range of power detection (such as a detection range greater than 20dB) will require an analog-to-digital converter with a large dynamic range ( analog-to-digitalconverter, ADC), resulting in higher associated costs. Although other existing mechanisms are designed to avoid the need to use a large dynamic range ADC, these mechanisms suffer from various design side effects that degrade o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/00G01R21/10
CPCG01R21/12G01R35/04
Inventor 邓志明
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE