WO2021169927A1 - Procédé de calcul de tension d'alimentation efficace de mélangeur - Google Patents

Procédé de calcul de tension d'alimentation efficace de mélangeur Download PDF

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Publication number
WO2021169927A1
WO2021169927A1 PCT/CN2021/077337 CN2021077337W WO2021169927A1 WO 2021169927 A1 WO2021169927 A1 WO 2021169927A1 CN 2021077337 W CN2021077337 W CN 2021077337W WO 2021169927 A1 WO2021169927 A1 WO 2021169927A1
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WIPO (PCT)
Prior art keywords
supply voltage
mixer
sample
effective
voltage
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PCT/CN2021/077337
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English (en)
Chinese (zh)
Inventor
胡源
陈春雷
黄建林
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昆山普尚电子科技有限公司
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Publication of WO2021169927A1 publication Critical patent/WO2021169927A1/fr

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis

Definitions

  • the invention relates to the technical field of mixers, in particular to a method for calculating the effective power supply voltage of a mixer
  • the power supply voltage of the mixer unit is different. If the same power supply voltage is used, the conversion gain or conversion loss of some mixers will reach Less than the system (for example, network analyzer) requirements. For this reason, mixer manufacturers or network analyzer manufacturers, as well as other end-users who need to use mixers, need to perform related tests for each mixer to determine its effective supply voltage.
  • the commonly used technical means are field tests, which adjust the frequency conversion characteristics of the mixer by changing the power supply voltage of the mixer to obtain the power supply voltage value corresponding to the optimal frequency conversion characteristic, or the frequency conversion characteristic value corresponding to the frequency conversion characteristic requirement. Power supply voltage value, this method is only suitable for use in the laboratory or research and development stage, because of the low efficiency and is not suitable for mass production stage.
  • the technical problem to be solved by the present invention is to provide a method for calculating the effective power supply voltage of the mixer, which combines the principles of statistics to determine the effective power supply voltage of the mixer.
  • the accuracy rate is above 98%, and at the same time, the effective power supply voltage of the mixer is greatly improved.
  • the calculation efficiency meets the quality requirements and speed requirements of the mixer in the mass production stage.
  • the present invention provides a method for calculating the effective power supply voltage of a mixer, which includes:
  • sample data of the sample mixer to create a sample database;
  • the sample data includes a mixer supply voltage that can meet the frequency conversion characteristics of the sample mixer;
  • the supply voltage V n is stored in the sample database for updating the probability distribution of the supply voltage.
  • the frequency conversion characteristics of the sample mixer are adjusted by changing the power supply voltage of the sample mixer, and the supply voltage corresponding to the optimal value of the frequency conversion characteristic is taken as the sample mixer
  • the effective supply voltage of the sample mixer is collected; the effective supply voltage of the sample mixer is collected to create the sample database.
  • the method further includes adjusting the frequency conversion characteristics of the sample mixer by changing the supply voltage of the sample mixer to obtain the frequency conversion characteristic curve of the sample mixer, and collecting the effective supply voltage of the sample mixer And the frequency conversion characteristic curve to create the sample database pressure.
  • it further includes gradually reducing the probability distribution value when searching in the sample database until the supply voltage V n is obtained so that the frequency conversion characteristic of the target mixer meets the requirements.
  • the method further includes: drawing a probability distribution curve according to the probability distribution of the supply voltage under the current sample size, and the probability distribution curve is used to speed up the search.
  • the frequency conversion characteristics of the mixer further include frequency conversion gain or conversion loss.
  • the method further includes changing the supply voltage of the sample mixer through a supply voltage adjustment circuit, and the supply voltage adjustment circuit includes:
  • the power supply input terminal is used to connect the power supply terminal
  • a power tube the drain of which is connected to the power supply input terminal, and the source of which is connected to the power supply output terminal;
  • An error amplifier the inverting input terminal of which is connected to the power supply output terminal, and the output terminal of which is connected to the gate of the power tube;
  • the voltage output DAC has its input terminal receiving a voltage regulation signal, and its output terminal is connected to the non-inverting input terminal of the error amplifier, and the voltage output DAC changes its own output voltage according to the voltage regulation signal.
  • the power supply voltage adjustment circuit further includes an FPGA chip, and the FPGA chip is connected to the voltage output DAC, which is used to generate the voltage adjustment signal.
  • it further includes the FPGA chip generating the voltage regulation signal according to the output performance of the mixer, and the output performance of the mixer includes conversion gain or conversion loss.
  • the output voltage adjustment accuracy of the voltage output DAC further includes mV level.
  • the method for calculating the effective power supply voltage of the mixer of the present invention combines the statistical principle to determine the effective power supply voltage of the mixer, and the accuracy is above 98%. At the same time, the calculation efficiency of the effective power supply voltage of the mixer is greatly improved to meet the requirements of the mixer. Quality requirements and speed requirements in the mass production stage.
  • Fig. 1 is a flowchart of a calculation method in a preferred embodiment of the present invention
  • Fig. 2 is a circuit principle diagram of a mixer supply voltage adjusting circuit in a preferred embodiment of the present invention.
  • This embodiment discloses a method for calculating the effective supply voltage of a mixer. Referring to FIG. 1, it includes the following steps:
  • the frequency conversion characteristics of the aforementioned mixer include conversion gain or conversion loss.
  • the mixer has different properties due to the influence of the internal chip manufacturing process. For example, mixers with the same frequency conversion characteristics have different requirements for the power supply voltage. If the same power supply voltage is used to drive The conversion gain or conversion loss of the mixer, part of the mixer does not meet the requirements of the system (for example, a network analyzer).
  • the supply voltage V n is stored in the sample database for updating the probability distribution of the supply voltage.
  • the frequency conversion characteristics of the sample mixer are adjusted by changing the supply voltage of the sample mixer, and the supply voltage corresponding to the optimal value of the frequency conversion characteristic is taken as the sample mixer.
  • the effective power supply voltage of the sample mixer is collected; the effective power supply voltage of the above-mentioned sample mixer is collected to create the above-mentioned sample database.
  • step (3) when searching in the sample database, the probability distribution value is gradually reduced until the supply voltage V n is obtained so that the frequency conversion characteristic of the target mixer meets the requirements.
  • the power supply voltage corresponding to the search probability distribution of 99% is the power supply voltage V 1 ; Connect the voltage V 1 to the target mixer, measure the frequency conversion characteristics of the target mixer, and determine whether it meets the requirements of the network analyzer.
  • the supply voltage V 1 is the effective supply voltage of the target mixer; if If the requirements are not met, the power supply voltage corresponding to the search probability distribution of 90% is the power supply voltage V 2 , the power supply voltage V 2 is connected to the target mixer, the frequency conversion characteristics of the target mixer are measured, and whether it meets the network analyzer In this way, search continuously until the supply voltage V n makes the frequency conversion characteristics of the target mixer meet the requirements. Searching for the supply voltage V n by gradually reducing the probability distribution value can effectively reduce the calculation amount and further increase the calculation speed.
  • the frequency conversion characteristic curve of the sample mixer is obtained, and the frequency conversion characteristic curve is used for subsequent calibration of the target mixer to collect the effectiveness of the sample mixer.
  • the supply voltage and frequency conversion characteristic curve create the above-mentioned sample database voltage.
  • It also includes drawing a probability distribution curve based on the probability distribution of the supply voltage under the current sample size, and the above probability distribution curve is used to speed up the search.
  • the power supply voltage of the above-mentioned sample mixer is changed by a power supply voltage regulating circuit.
  • the power supply voltage regulating circuit includes a power supply output terminal Out, a power supply input terminal In, a power tube Q, Error amplifier U1 and voltage output DAC U2.
  • the power tube Q preferably uses an N-type MOS tube.
  • the power supply output terminal Out is used to connect to the mixer, the power supply input terminal In is used to connect to the power supply terminal; the drain of the power tube Q is connected to the power supply input terminal In, and the source is connected to the power supply output terminal Out; the inverse of the error amplifier U1
  • the phase input terminal is connected to the power supply output terminal Out, and the output terminal is connected to the gate of the power tube Q; the input terminal of the voltage output DAC U2 receives the voltage regulation signal, and the output terminal is connected to the non-inverting input terminal of the error amplifier U1.
  • the voltage output DAC changes its output voltage according to the voltage regulation signal.
  • the above-mentioned voltage output DAC is an electronic component of a well-known example, which can change its output voltage (analog signal) according to the input voltage adjustment signal (digital signal), for example, the high-precision voltage output of ADI or Ti DAC.
  • the voltage output DAC changes its output voltage according to the voltage regulation signal
  • the error amplifier is used to amplify the difference between the power supply voltage connected to the mixer and the output voltage adjusted by the voltage output DAC.
  • the amplified signal is realized by controlling the power tube. The purpose of adjusting the power supply voltage of the mixer can effectively improve the voltage adjustment accuracy and the flexibility of the voltage adjustment compared to the traditional method of adjusting the voltage divider resistance.
  • the voltage regulation signal is generated by an FPGA chip U3, and the FPGA chip U3 is connected to the voltage output DAC U2.
  • the FPGA chip U3 generates the voltage regulation signal according to the output performance of the mixer, and the output performance of the mixer includes but is not limited to conversion gain/loss.
  • the voltage regulation signal associated with the output performance of the mixer is connected to the voltage output DAC U2, and then the power supply voltage connected to the mixer is adjusted so that the mixer meets the system's requirements for conversion gain/loss.
  • the FPGA chip U3 is programmed and controlled to generate the above-mentioned voltage adjustment signal, so that the output voltage adjustment accuracy of the voltage output DAC U2 can achieve mV level.
  • the FPGA chip is an electronic component of a known example, which can generate a digital signal associated with it according to a known variable (for example, the conversion gain/loss of a frequency converter).
  • a known variable for example, the conversion gain/loss of a frequency converter.
  • FPGA chips with corresponding specifications from Intel, Xilinx, or Lattice are examples of FPGA chips with corresponding specifications from Intel, Xilinx, or Lattice.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Operations Research (AREA)
  • Probability & Statistics with Applications (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Algebra (AREA)
  • Evolutionary Biology (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un procédé de calcul de tension d'alimentation efficace de mélangeur, comprenant les étapes consistant à : acquérir des données d'échantillon d'un mélangeur d'échantillons pour créer une base de données d'échantillons ; obtenir une distribution de probabilité de tension d'alimentation sous la taille d'échantillon actuelle ; rechercher dans la base de données d'échantillons pour obtenir une tension d'alimentation V1 correspondant à la valeur de distribution de probabilité maximale, connecter la tension d'alimentation V1 à un mélangeur cible dont une tension d'alimentation efficace doit être calculée, et mesurer et déterminer si une caractéristique de conversion de fréquence du mélangeur cible satisfait une exigence : si oui, la tension d'alimentation V1 est la tension d'alimentation efficace du mélangeur cible, et la recherche est terminée, sinon, la recherche est poursuivie jusqu'à ce qu'une tension d'alimentation Vn soit obtenue pour permettre à la caractéristique de conversion de fréquence du mélangeur cible de satisfaire l'exigence, la tension d'alimentation Vn est la tension d'alimentation efficace du mélangeur cible, et la recherche est terminée. Selon le procédé de calcul de la présente invention, la tension d'alimentation efficace du mélangeur est déterminée en combinaison avec le principe des statistiques, la précision est supérieure ou égale à 98 %, l'efficacité de calcul de la tension d'alimentation efficace du mélangeur est considérablement améliorée, et l'exigence de qualité et l'exigence de vitesse du mélangeur dans une étape de production par lots sont satisfaites.
PCT/CN2021/077337 2020-02-29 2021-02-23 Procédé de calcul de tension d'alimentation efficace de mélangeur WO2021169927A1 (fr)

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CN202010132241.7A CN111342777B (zh) 2020-02-29 2020-02-29 混频器有效供电电压计算方法
CN202010132241.7 2020-02-29

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CN111342777B (zh) * 2020-02-29 2023-03-21 昆山普尚电子科技有限公司 混频器有效供电电压计算方法

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CN102290978A (zh) * 2011-08-04 2011-12-21 无锡中星微电子有限公司 电源管理系统
CN105067894A (zh) * 2015-07-03 2015-11-18 工业和信息化部电子第五研究所 混频器变频损耗的测试方法和系统
CN209030160U (zh) * 2018-12-04 2019-06-25 南京天矽微电子科技有限公司 一种超宽带混频芯片电路
US20190207558A1 (en) * 2018-01-04 2019-07-04 Qualcomm Incorporated Mixer Biasing with Baseband Filter Common-Mode Voltage
CN111342777A (zh) * 2020-02-29 2020-06-26 昆山普尚电子科技有限公司 混频器有效供电电压计算方法

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US9793860B2 (en) * 2013-09-06 2017-10-17 Qorvo Us, Inc. RF amplification device with power protection during high supply voltage conditions
CN109684308B (zh) * 2017-10-18 2020-11-17 南方电网科学研究院有限责任公司 一种基于模式搜索的电磁环境参数一致性清理方法及装置
CN108021945A (zh) * 2017-12-07 2018-05-11 广东电网有限责任公司电力科学研究院 一种变压器状态评价模型建立方法及装置
CN108172027A (zh) * 2018-01-26 2018-06-15 南京航空航天大学 概率性航路扇区交通需求预测方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102290978A (zh) * 2011-08-04 2011-12-21 无锡中星微电子有限公司 电源管理系统
CN105067894A (zh) * 2015-07-03 2015-11-18 工业和信息化部电子第五研究所 混频器变频损耗的测试方法和系统
US20190207558A1 (en) * 2018-01-04 2019-07-04 Qualcomm Incorporated Mixer Biasing with Baseband Filter Common-Mode Voltage
CN209030160U (zh) * 2018-12-04 2019-06-25 南京天矽微电子科技有限公司 一种超宽带混频芯片电路
CN111342777A (zh) * 2020-02-29 2020-06-26 昆山普尚电子科技有限公司 混频器有效供电电压计算方法

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